Обучение по природни науки и върхови технологии

2016/3, стр. 394 - 405

EXISTING NATURE OF SCIENCE TEACHING OF A THAI IN-SERVICE BIOLOGY TEACHER

Wimol Sumranwanich
Khon Kaen University Thailand
Sitthipon Art-in
Khon Kaen University Thailand
Panee Maneechom
Khon Kaen University Thailand
Chokchai Yuenyong
E-mail: ychok@kku.ac.th
Science Education Program
Faculty of Education
Khon Kaen University Thailand

Резюме: The paper aimed to investigate the existing nature of science (NOS) teaching in Thailand biology classroom. Participants included Thai in-service biology teacher classrooms in Udontani province, Thailand. Methodology regarded interpretive paradigm. Tools of interpretation included 2 months of classroom observation, interviewing, and questionnaire of NOS. The findings will clarify each case of classroom about (1) teachers’ understanding of NOS, and (2) what aspects of NOS were presented and how they enhanced students’ to understand NOS in biology learning. The paper has implication for professional development on NOS teaching in Thailand.

Ключови думи: nature of science, biology, professional development

Introduction

The nature of science (NOS) is a complicated concept. It is difficult for experts to define as it is forstudents to learn. NOS involves a wide variety of topics related to the history, philosophy, andsociology of science. Many have claimed that no consensus exists among philosophers of science,science educators as to a precise definition or characterization of the nature of science. However, thereis consensus on many aspects of the nature of science that are relevant to K-12 students (Bell et al.,2000; Kourany, 1998; Good et al., 2000; Lederman, 1999; Lederman &AbdEl-Khalick, 1998; Smithet al., 1997). These included the concepts that scientific knowledge is (a) tentative (subject to change);(b) empirically based (based on observations of the natural world); (c) subjective in that science is ahuman endeavor and investigations are conducted within the context of particular theoreticalframeworks; (d) partly the product of inference, imagination, and creativity; (e) socially and culturallyembedded (can be influenced by contextual factors outside of the scientific community); and (f)developed from a combination of observation and inferences.In order to evaluate both pre- and in-service teachers’ conceptions about NOS and attitudetoward teaching NOS, Chen (2006) drawn the consensus of NOS from previous research (e.g.,Kourany, 1998; Good et al., 2000; Schwartz & Lederman, 2002) for developing the questionnaireabout NOS. These focus on seven aspects of NOS including: (1) tentativeness of scientific knowledge;(2) nature of observation; (3) scientific methods; (4) hypotheses, laws, and theories; (5) imagination;(6) validation of scientific knowledge; and (7) objectivity and subjectivity in science.

The science curriculum in Thailand always sees the importance of the study of the nature of science. In the secondary curriculum of 1978, some topics related to the nature of science were incorporated, but the term ‘the nature of science’ was not used until the science content domain in the foundation curriculum of 2001 and the core curriculum of 2008 placed the nature of science and technology as the 8th content domain. This covers learning processes in which knowledge inquiry processes, problem solving processes, the nature and limitation of science, attitudes, moral, ethics, and values have been incorporated (OBEC, 2008). The following purposes related to the nature of science have also been addedfor learners(IPST, 2002):(i) to understand the scope, nature, and limitation of science; (ii) to develop learning processes and imagination, ability in problem solving and management, communication skills, and decision making capacity; (iii) tobe aware of relationships between science, technology, human beings, and their environment that brings impact on one another; (iv)to possess scientific attitudes, ethics, moral, and values in creative use of science and technology.

Thailand sees the importance of the nature of science both in the sense of the teacher and the student, just like science education in other countries. The problem arising from scientific curriculum improvement and the setting of new science teachers’ standard, however, is teachers’ lacking of continual professional support. This results in lack of understanding for instruction of the nature of science, and at the end an impact on students’ learning. This is reflected by the Trends in International Mathematics and Science Study (TIMSS, an International Association for the Evaluation of Education Achievement (IEA)), whichassessed teachers’ instruction and students’ achievements in 59 countries and 8 states in 2007. It was found that Thai science teachers still teach by explaining. They still do not plan instructions that integrate the nature of science, and hence Thai students’ average achievement is lower than the average of international students and even lower in tendency, even though Thailand came the second in the world in scheduling more science classes at school (Yuenyong & Narjaikaew, 2009).

From the importance and problem of the nature of science, the researcherssawthat teachers are very important in building understanding of the nature of science in students. It became interesting to study the nature of science as perceived by science teachers.Broaden view of NOS teaching refers to the teaching of science by integrating the NOS in. Teachers’ teaching of the NOS can be varied in the range from using implicit approach to didactic approach and to explicit approach. The implicit approaches for teaching the NOS in this research refer to anyinstructional approaches for science including learning by doing science and practical workwhich do not incorporate some activities or discussions to make a connection betweenscience-subject content and concepts of the NOS nor explicitly point out and reflectconcepts of the NOS that are conveyed during practical work.The didactic approaches for teaching the NOS in this research refer to anyinstructional approaches for science including the way of integrating the NOS. However, thisdiscussion is separated from the activities that students have been engaged in. The lessonsare identified as concentrating on teaching science content and making a simple didacticexplanation of certain aspects of the NOS.The explicit approaches for teaching the NOS in this research refer to anyinstructional approaches for science including learning by doing science and practical workwhich incorporate some activities or discussions to make a connection between sciencesubjectcontent and concepts of the NOS or explicitly point out and reflect concepts of theNOS that are conveyed during practical work (Meesri, 2007).

Several studies have reported results of attempts to teach about the nature of science to teachers (Abd-El-Khalick et al., 1998;Bell et al., 2000; King, 1991; Pomeroy, 1993). In general, these studies show that it is difficult to teach science teachers to understand and implement nature of science instruction, possibly because the nature of science is often addressed apart from any real science context in science methods courses. Some of the more successful efforts in achieving nature of science outcomes have been the result of explicit instruction in which the teacher guides learners in examining specific aspects of the nature of science reflected in the science lesson. The explicit-reflective instruction approach (Khishfe&Abd-El-Khalick, 2002) provides students with a framework to analyze science activities for nature of science aspects and to reflect upon the similarities and differences between the classroom science experience and the experiences of practicing scientists. Based on the literature regarding explicit and contextual instruction, we hypothesized that elementary preservice teachers could effectively learn about the nature of science through explicit instruction presented in the context of a socio-scientific issue. Therefore, we designed the instruction treatment in this study around the complex and controversial topic of global climate change. Explicit instruction refers to drawing the learner’s attention to key aspects of the NOS through discussions and written work following engagement in hands-on activities. Reflective NOS instruction requires learners to think about how their work illustrates the NOS and how their inquiries are similar to or different from the work of scientists.Several studies have reported results of attempts to teach about the nature of science to teachers (Abd-El-Khalick et al., 1998; Bell et al., 2000; King, 1991; Pomeroy, 1993). In general, these studies show that it is difficult to teach science teachers to understand and implement nature of science instruction, possibly because the nature of science is often addressed apart from any real science context in science methods courses. Some of the more successful efforts in achieving nature of science outcomes have been the result of explicit instruction in which the teacher guides learners in examining specific aspects of the nature of science reflected in the science lesson. The explicit-reflective instruction approach (Khishfe&Abd-El-Khalick, 2002) provides students with a framework to analyze science activities for nature of science aspects and to reflect upon the similarities and differences between the classroom science experience and the experiences of practicing scientists. Based on the literature regarding explicit and contextual instruction, we hypothesized that elementary preservice teachers could effectively learn about the nature of science through explicit instruction presented in the context of a socio-scientific issue. Therefore, we designed the instruction treatment in this study around the complex and controversial topic of global climate change. Explicit instruction refers to drawing the learner’s attention to key aspects of the NOS through discussions and written work following engagement in hands-on activities. Reflective NOS instruction requires learners to think about how their work illustrates the NOS and how their inquiries are similar to or different from the work of scientists.

Methodology

Methodology regarded interpretive paradigm. Research method was applied as an interpretation for Teachers’ understanding of the nature of science and NOS on their biology teaching.

Participants: Punnee (a pseudonym)

Punee graduated with a bachelor’s of science in biology and a graduate diploma in teaching profession from KhonKaen University. She also finished her Master degree in science education from KhonKaen University. She had been teaching for 4 years at Penpittayakhom School, Udonthani. Penpittayakhom Schoolis a largesized secondary co-education school offering secondary programs from Grade 7 – 12. In 2012, there were a total of 1,799 students and 48 classes, with 80 teachers and staff members. Ten teachers were responsible for teaching and learning in the science domain.

Punnee had a 4-year teaching experiencein biology science. Not only teaching, but also she is responsible for the school finance.She had never been trained in science instruction management under the basic education curriculum of 2008. She liked designing science lessons because she graduated in this field and also holds a graduate diploma. She is interested in science subject and assessed herself in instruction at a moderate level. She reported that her students regularly came to her classes and enjoyed them. Her students were satisfied with the lessons. If there is training on science instruction, the topic Punnee is mostly interested to participate is the instruction innovations of all contents in biology. She was assisted in science lesson planning by her colleagues at the school and exchanged knowledge, contents and activities with them. School administrators also saw the importanceof science teaching and emphasized excellence in science and mathematics.

Research instruments

(A) A semi-structured interview form for the biology teacher understands of thenature of science. Questions were designed in the interview including two parts: (a) part1 – interviewing for baseline data comprising 10 questions; (b) part2 – interviewing for teacher’s understanding of the nature of science which comprises 4 questions covering 4 components of the nature of science

(B) An observation record form for the teacher’s instruction and summarization of the instruction on the nature of science.

Data collection

(1) The school’s baseline data was collected including science instruction, number of students and educational personnel, and general information of the teacher and students under study.

(2) The researcher familiarized herself with the teacher and observed her lessons in the first semester of academic year 2012 in order to lessen the impact from data collection such as from the attitude of the subject. For the said purposes, the researcher observed the class without taking any notes.

(3) Around eight to ten lessons of each teacher teaching on the nature of sciences were observed. The researchers recorded the instructional processes, teacher’s behaviors, students’ behaviors, and made conclusion of each lesson on the nature of science.

(4) Before teaching of the lessons, the researchers interviewed and recorded how participating teachers’ understanding of the nature of science.

Data analysis (1) Schools’ baseline data was compiled and written in a descriptive form to reflect the holistic view of the school.

(2) The data obtained from survey on each of participating teachers’ lessons on the nature of science was interpreted how they focus on teaching biology related to nature of science. Their existing ideas about teaching for nature of science in their biology will be categorized into the Deficient Nature of Science Approach, the Implicit Nature of Science Approach, the Didactic Nature of Science Approach, and the Explicit Nature of Science Approach.

(3) The recorded interview on teachers’ understanding of the nature of science was transcribed. And, teachers’ responding was interpreted to examine their understanding of NOS for four components. These included (i) science knowledge requires evidences; (ii) science knowledge is changeable; (iii) science knowledge is inquired by different interpretation and observation; and (iv)creativity and imagination. Their understanding of NOS will be reported in three levels including good understanding, unclear understanding, and understanding with discrepancies.

(4) Analysis of teachers’ briefing.

Findings

Case of in-service teacher Punnee understanding of the nature of science and NOS onher biology teaching was explained as below.

MsPunnee’s lessons of the nature of science were on the topics of ecological system and environment and natural resources. The observed facts in the ecological system comprised global warming and its relationships with ecology, El Nino and La Nina, global warming and energy transfer in the ecological system, global warming and relationship with ecosystem, global warming and greenhouse effect. For the units on the environment and natural resources, the contents included the changes of the environment and natural resources. Altogether MsPunnee designed these topics in 8 periods and applied three approaches, namely: the Deficient Nature of Science Approach, the Implicit Nature of Science Approach, and the Didactic Nature of Science Approach. The Didactic Nature of Science Approach was applied mostly in 4 periods, followed by the Implicit Nature of Science Approach in 2 periods, and the Deficient Nature of Science Approach in 2 periods, as shown in Table 1.

Table 1. Punnee’s ecology lessons on the nature of science

Approaches of lessonson the nature of scienceFrequency(period) ScienticcontentsThe Decient Nature ofScience Approach2– Global warming and energy transfer in theecological system– Global warming and relationship with ecosystemThe Implicit Nature ofScience Approach2Environmental and natural resources problemsThe Didactic Nature ofScience Approach41. Global warming and relationship withecosystem2. El Nino and La Nina3. Global warming and greenhouse effect4.Changes of the environment and naturalresources

The Deficient Nature of Science Approach applied by MsPunnee mostly involved students studying the handout and do the activity on the worksheet. For example, in the global warming and transfer of energy in ecosystem, students were divided into groups and studied the roles and functions of living things in the food supply chain. Then students were asked to do activity sheet 2 and discussed in front of the class.

For the topic of global warming and relationship with ecosystem, students formed into groups and chose their interesting topic to search information, draw diagrams and present in front of the class. The topics provided were water cycle, carbon cycle, nitrogen cycle, phosphorus cycle, and sulfur cycle. Then the teacher and students concluded the knowledge obtained and presented in concept mapping.

In the Implicit Nature of Science Approach, MsPunnee relied on lesson planning. For the content of the environment and natural resources, students were asked to plan what to do for their interesting community problem.They explored and compiled information and knowledge they required as agreed in the past period. Then the teacher let them discuss, exchange ideas, and plan the operation on the chosen problem and presented to the teacher. Here is an example of what MsPunnee said to her student, in which one component of the nature of science was related:

1) Creativity and imagination influence scientific knowledge inquiry. MsPunnee used the Implicit Nature of Science Approach by having students watch a video on “Stop global warming with sufficiency life” in the introduction part. She said, “After watching “Stop global warming with sufficiency life”, what will you do to lessen global warming?” Students had to use imagination to find the answer based on the video. They used scientific knowledge which is derived from observing the nature and created imagination and creativity to explain.

(From MsPunnee’s lesson, Period 7, December 24, 2012 02.30 – 05.40, Penpittayakhom School)

MsPunnee’s Didactic Nature of Science Approach mostly involved brainstorming and discussion of the topic to study. For example, in global warming and ecosystem, students were divided into small groups; they brainstormed and discussed the statement, “A survey of marine resource researchers showed a decrease of marine population, destruction of coral reefs, and some endangered marine species.” Each group posed questions that would add to the explanation of this statement. The questions were then discussed for the answers. Students then summarized their answers in concept mappingto explain how global warming affects ecosystem. Finally, the whole class discussed the effects of global warming on coral reefs and ecosystem. Here is what MsPunnee said that was related to two components of the nature of science:

1) For the component of different observation and deduction in scientific knowledge investigation, MsPunnee applied the Didactic Nature of Science Approach as shown in her greeting and conversation, “Hi students. Today we will study the topic of global warming and its relationship with ecosystem. I’d like you to brainstorm on the effects of the present global warming on our earth.” MsPunnee used this instruction to make students use their senses to observe the present day global warming and its effects, since this can be perceived through our sense.

(From MsPunnee’s lesson, Period 1, December 3, 2012 01.20 – 05.45, Penpittayakhom School)

2) For the component of the use of evidence for scientific knowledge, MsPunneeused the Didactic Nature of Science Approach. She asked students to study information of different types of ecosystem and posed some problems for them to show their opinions. She said, “A survey of marine resource researchers showed a decrease of marine population, damage of coral reefs, and some endangered marine species.”

(From MsPunnee’s lesson, Period 1, December 3, 2012 10.30 – 12.00, Penpittayakhom School)

For the topic of El Nino and La Nina, students watched a video showing the phenomena, studied the handout and media already researched. Students then discussed together and made conclusion of the knowledge of El Nino and La Nina and their relationships with ecosystem. Then students presented this in front of the class. The teacher and students discussed the content of the video and the effects of El Nino and La Nina on ecosystems. Students finally summarized their knowledge of this topic. Here is an example of MsPunnee’s statement related to one component of the nature of science:

1) For the role of creativity and imagination on scientific knowledge inquiry, MsPunnee used the Didactic Nature of Science Approach by letting students watch a video on El Nino and La Nina and discuss the impact on ecosystem. She asked, “1) What were food chain and food web in ecosystem in the past like? 2) How do El Nino and El Nina affect food chain and food web in our ecosystem?”This step required students to use their imagination to find the answers which were based on the content of the video. Students had to use their scientific knowledge derived from observation of nature, imagination and creativity to explain scientifically.

(From MsPunnee’s lesson, Period 2, December 7, 2012 01.30 – 17.40, Penpittayakhom School)

The content of global warming and greenhouse effect was taught by dividing students into groups and teacher and students discussed global warming first. Then students discussed within their group to find solution to the condition as part of the ecosystem. Students then presented their work by putting on posters and giving a talk on the school’s loudspeaker. Here are some examples of MsPunnee’s questions which were related to 2 components of the nature of science:

1) Scientific knowledge relies on evidence. MsPunnee used the Didactic Nature of Science Approach as she introduced her lessons by revising the knowledge from the first period on global warming and the world ecosystem from the statement, “The destruction of coral reefs leads to decrease of marine creatures. Today, I want you to think and answer these questions: 1) How important are the coral reefs? 2) What benefits do marine animals obtain from the coral reefs? 3) Why are marine creatures decreased when coral reefs are destroyed?”

(From MsPunnee’s lesson, Period 5, December 17, 2012 02.10 – 10.20, Penpittayakhom School)

2)Scientific knowledge is derived from different observation and deduction. In this respect, MsPunnee applied the Didactic Nature of Science Approach as can be seen in her explanation during the class discussion on global warming, “Global warming happens from the increase of carbon dioxide in the atmosphere. Carbon dioxide has a property of heat retaining. This is too great until it covers the atmosphere. When the sun reaches the earth it cannot reflect back. Heat is retained in the atmosphere making the temperatures higher. The impact of global warming is the high temperatures that are not suitable for living things.”

(From MsPunnee’s lesson, Period 5, December 17, 2012 25.30 – 40.40, Penpittayakhom School)

For the content of the changes of the environment and natural resources, students were divided into small groups of 4-5 and considered conditions and problems of the environment the teacher proposed. They participated in the discussion on the teacher’s topic. Then the teacher selected some students to present their discussion. Students were next asked to pose a social related issue on “Is our school and community affected by any environmental problem? What is it and how?” The teacher asked students to brainstorm and say if they want any information related to their interesting environmental issue that affects the school or community. Then students planned together how to tackle the problem. Here are the examples of teacher’s instruction related to 2 components of the nature of science:

1) Creativity and imagination influence scientific knowledge inquiry . MsPunnee used the Didactic Nature of Science Approach. In the introduction, she asked, “What kind of world do you want to live in? Give some examples. Say why you want to live in that world?” At this stage, students used their imagination to find the answer. They used their scientific knowledge derived from observation of the nature and then built imagination and creativity to explain it scientifically.

(From MsPunnee’s lesson, Period 6, December 21, 2012 03.20 – 05.00, Penpittayakhom School)

Students answered, “I want to live in the world where the air is clean, with no vehicle exhausts, and it is not hot. If our body receives good and clean air, good environment, we will be healthy, our brain will be fresh and able to learn and memorize better.”

(Group 3, December 21, 2012 7.00 – 7.40, Penpittayakhom School)

2) Scientific knowledge is derived from different observation and deduction. In this respect, MsPunnee applied theDidactic Nature of Science Approachby asking another question that continued from the above, “And how is the world condition today?”

(From MsPunnee’s lesson, Period 6, December 21, 2012 10.30 – 12.24, Penpittayakhom School)

Students answered, “Today our world is warmer. There is a lot of pollution and a lot of environmental problems such as water pollution, air pollution, deteriorated soil, and forests are destroyed.”

(Group1,December 21, 2012 13.27 – 15.08, Penpittayakhom School)

MsPunnee did not use the Explicit Nature of Science Approach. Therefore, the teacher should improve her teaching and learning by incorporating activities related to the nature of science and allow students to reflect their understanding by posing discussion questions clearly related to principles of the nature of science. As such, the teacher would be able to apply the Explicit Nature of Science Approach.

Conclusion

The research findings show the necessity to emphasize the nature of science in parallel with instruction and scientific ideas in training science teachers so that students would have accurate understanding of the nature of science. Participating teachers could not use the Explicit Nature of Science Approach. Many research suggested that to teach NOS effectively, teachers must make aspects of NOS an explicit part of the classroom discourse. Rather than utilizing didactic means, teachers should provide learners with opportunities to reflect upon and explain their ideas about NOS, discuss the strengths and limitations of those ideas, and assess the consistency of their ideas with those of others (Abd-El-Khalick et al., 1998; Bell & Lederman, 1998; Bell et al., 2000).

Relevant organizations should train education students to be able to design their instruction that clearly reflect the nature of science before they train or work in teaching profession. The relationships between understanding of the nature of science and in-service teacher instruction based on observation in classrooms using the semi-structured interview and their lesson plansshown that their lesson did not incorporate the learning of nature of science in class. Thus, knowledge and understanding of the nature of science did not affect the lessons (Lederman,1999(. The factors influencing students’ understanding of the nature of science were inquiryteaching approaches and students’ perception.The research results show the importance of the use of the nature of science in science teachers’ instruction. Relevant organizations should develop science teachers to be able to provide instructions based on the Explicit Nature of Science Approach.

REFERENCES

Abd-El-Khalick, F., Bell, R.L. & Lederman, N.G. (1998). The nature of science and instructional practice: making the unnatural natural. Science Education, 82, 417 – 436.

Bell, R.L., Lederman, N.G.&Abd-El-Khalick, F. (2000). Developing and acting upon one’s conception of the nature of science: a followup study. J. Res. Sci. Teaching, 37, 563 – 581.

Chen, S. (2006). Development of an instrument to assess views on nature of science and attitudes toward teaching science. Science Education, 90, 803 – 819.

Good, R., Lederman, N., Gess-Newsome, J., McComas,W.& Cummins, C. (2000). Nature of science: implications for research, assessment, and teacher education. A symposium and paper presented at the annual international meeting of the Association for the Education of Teachers in Science, Akron, OH.

Institute for the Promotion of Teaching Science and Technology (IPST) (2002). The manual of content of science learning. Bangkok, Thailand: Curusaphaladphoa

Khishfe, R.&Abd-El-Khalick, F. (2002).Influence of explicit and reflective versus implicit inquiry-oriented instruction on sixth graders’ views of nature of science. J. Res. Sci. Teaching, 39, 551 – 578.

King, B.B. (1991). Beginning teachers’ knowledge of and attitudes toward history andphilosophy of science. Science Education, 75, 135 – 141.

Kourany, J.A. (1998). Scientific knowledge: basic issues in the philosophy of science. Belmont: Wadsworth.

Lederman, N.G. (1999). Teachers’ understanding of the nature of science: factors that facilitate or impede the relationship. J. Res. Sci. Teaching, 36, 916 – 929.

Lederman, N. &Abd-El-Khalick, F. (1998).Avoiding de-natured science: activities that promote understandings of the nature of science (pp. 82 – 126). In: McComas, W.F. (Ed.). The nature of science in science education: rationales and strategies. Dordrecht: Kluwer.

Meesri, S. (2007). A development of professional development program for enhancing teachers’understanding of the nature of science and its implementation in the classroom – PhD thesis. Bangkok: Srinakharinwirot University.

Pomeroy, D. (1993). Implications of teachers’ beliefs about the nature of science: comparison of the beliefs of scientists, secondary science teachers, and elementary teachers. Science Education, 77, 261 – 278.

Schwartz, R.S. & Lederman, N.G. (2002). “It’s the nature of the beast”: the influence of knowledge and intentions on learning and teaching nature of science. J. Res. Sci. Teaching, 39, 205 – 236.

Smith, M.U., Lederman, N.G., Bell, R.L., McComas, W.F. & Clough, M.P. (1997). How great is the disagreement about nature of science: a response to Alters. J. Res. Sci. Teaching, 34, 1101 – 1104.

Yuenyong, C. & Narjaikaew, P. (2009). Scientific literacy and Thailand science education. Inter. J. Environ. & Sci. Educ. , 4, 335 – 349.

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ПОДКАСТ – КОГА, АКО НЕ СЕГА?

Христо Чукурлиев

Книжка 3-4
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Книжка 1
2022 година
Книжка 6
METEOROLOGICAL DETERMINANTS OF COVID-19 DISEASE: A LITERATURE REVIEW

Z. Mateeva, E. Batchvarova, Z. Spasova, I. Ivanov, B. Kazakov, S. Matev, A. Simidchiev, A. Kitev

Книжка 5
MATHEMATICAL MODELLING OF THE TRANSMISSION MECHANISM OF PLAMODIUM FALCIPARUM

Onitilo S. A, Usman M. A., Daniel D. O. Odetunde O. S., Ogunwobi Z. O., Hammed F. A., Olubanwo O. O., Ajani A. S., Sanusi A. S., Haruna A. H.

ПОСТАНОВКА ЗА ИЗМЕРВАНЕ СКОРОСТТА НА ЗВУКА ВЪВ ВЪЗДУХ

Станислав Сланев, Хафизе Шабан, Шебнем Шабан, Анета Маринова

Книжка 4
MAGNETIC PROPERTIES

Sofija Blagojević, Lana Vujanović, Andreana Kovačević Ćurić

„TAP, TAP WATER“ QUANTUM TUNNELING DEMONSTRATION

Katarina Borković, Andreana Kovačević Ćurić

Книжка 3
Книжка 2
КОМЕТИТЕ – I ЧАСТ

Пенчо Маркишки

Книжка 1
DISTANCE LEARNING: HOMEMADE COLLOIDAL SILVER

Ana Sofía Covarrubias-Montero, Jorge G. Ibanez

2021 година
Книжка 6
STUDY OF COMPOSITIONS FOR SELECTIVE WATER ISOLATION IN GAS WELLS

Al-Obaidi S.H., Hofmann M., Smirnov V.I., Khalaf F.H., Alwan H.H.

Книжка 5
POTENTIAL APPLICATIONS OF ANTIBACTERIAL COMPOUNDS IN EDIBLE COATING AS FISH PRESERVATIVE

Maulidan Firdaus, Desy Nila Rahmana, Diah Fitri Carolina, Nisrina Rahma Firdausi, Zulfaa Afiifah, Berlian Ayu Rismawati Sugiarto

Книжка 4
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PROBLEM OF THE 8-TH EXPERIMENTAL PHYSICS OLYMPIAD, SKOPJE, 8 MAY 2021 DETERMINATION OF PLANCK CONSTANT BY LED

Todor M. Mishonov, Aleksander P. Petkov, Matteo Andreoni, Emil G. Petkov, Albert M. Varonov, Iglika M. Dimitrova, , Leonora Velkoska, Riste Popeski-Dimovski

Книжка 2
INVESTIGATION OF \(^{238}\)U, \(^{234}\)U AND \(^{210}\)PO CONTENT IN SELECTED BULGARIAN DRINKING WATER

Bozhidar Slavchev, Elena Geleva, Blagorodka Veleva, Hristo Protohristov, Lyuben Dobrev, Desislava Dimitrova, Vladimir Bashev, Dimitar Tonev

Книжка 1
DEMONSTRATION OF DAMPED ELECTRICAL OSCILLATIONS

Elena Grebenakova, Stojan Manolev

2020 година
Книжка 6
ДОЦ. Д-Р МАРЧЕЛ КОСТОВ КОСТОВ ЖИВОТ И ТВОРЧЕСТВО

Здравка Костова, Елена Георгиева

Книжка 5
Книжка 4
JACOB’S LADDER FOR THE PHYSICS CLASSROOM

Kristijan Shishkoski, Vera Zoroska

COMPARATIVE PERFORMANCE AND DIGESTIBILITY OF NUTRIENTS IN AFSHARI AND GHEZEL RAM LAMBS

Morteza Karami, Fardis Fathizadeh, Arash Yadollahi, Mehran Aboozari, Yaser Rahimian, Reza Alipoor Filabadi

КАЛЦИЙ, ФОСФОР И ДРУГИ ФАКТОРИ ЗА КОСТНО ЗДРАВЕ

Радка Томова, Светла Асенова, Павлина Косева

Книжка 3
THE DAY OF THE INDUCTANCE: PROBLEMS OF THE 7\(^{TH}\) EXPERIMENTAL PHYSICS OLYMPIAD, SKOPJE, 2019

Todor M. Mishonov, Riste Popeski-Dimovski, Leonora Velkoska, Iglika M. Dimitrova, Vassil N. Gourev, Aleksander P. Petkov, Emil G. Petkov, Albert M. Varonov

MATHEMATICAL MODELING OF 2019 NOVEL CORONAVIRUS (2019 – NCOV) PANDEMIC IN NIGERIA

Sefiu A. Onitilo, Mustapha A. Usman, Olutunde S. Odetunde, Fatai A. Hammed, Zacheous O. Ogunwobi, Hammed A. Haruna, Deborah O. Daniel

Книжка 2
Книжка 1
МОЛЕКУЛИТЕ НА УДОВОЛСТВИЕТО

Веселина Янкова, Снежана Демирова, Цветанка Митева, Явор Князов, Христо Желев, Димитър Георгиев, Габриела Стоянова

WATER PURIFICATION WITH LASER RADIATION

Lyubomir Lazov, Hristina Deneva, Galina Gencheva

2019 година
Книжка 6
LASER MICRO-PERFORATION AND FIELDS OF APPLICATION

Hristina Deneva, Lyubomir Lazov, Edmunds Teirumnieks

ПРИЛОЖНА ФОТОНИКА И АНТИОКСИДАНТНИ СВОЙСТВА НА ВИСОКООЛЕИНОВО СЛЪНЧОГЛЕДОВО МАСЛО С БИЛКОВИ ПРИМЕСИ

Кръстена Николова, Стефка Минкова, Поли Радушева, Георги Бошев, Еркан Фаридин, Нурал Джамбазов, Мариана Перифанова-Немска

ПРОЦЕСЪТ ДИФУЗИЯ – ОСНОВА НА ДИАЛИЗАТА

Берна Сабит, Джемиле Дервиш, Мая Никова, Йорданка Енева

IN VITRO EVALUATION OF THE ANTIOXIDANT PROPERTIES OF OLIVE LEAF EXTRACTS – CAPSULES VERSUS POWDER

Hugo Saint-James, Gergana Bekova, Zhanina Guberkova, Nadya Hristova-Avakumova, Liliya Atanasova, Svobodan Alexandrov, Trayko Traykov, Vera Hadjimitova

2019 − THE INTERNATIONAL YEAR OF THE PERIODIC TABLE OF CHEMICAL ELEMENTS

Maria Atanassova, Radoslav Angelov, Dessislava Gerginova, Alexander Zahariev

ТЕХНОЛОГИЯ

Б. В. Тошев

Книжка 5
ЗЕЛЕНА ХИМИЯ В УЧИЛИЩНАТА ЛАБОРАТОРИЯ

Александрия Генджова, Мая Тавлинова-Кирилова, Александра Камушева

ON THE GENETIC TIES BETWEEN EUROPEAN NATIONS

Jordan Tabov, Nevena Sabeva-Koleva, Georgi Gachev

CAN BRING PEOPLE TOGETHER

Nadya Kantareva-Baruh

Книжка 4
CHEMOMETRIC ANALYSIS OF SCHOOL LIFE IN VARNA

Radka Tomova, Petinka Galcheva, Ivajlo Trajkov, Antoaneta Hineva, Stela Grigorova, Rumyana Slavova, 6Miglena Slavova

ЦИКЛИТЕ НА КРЕБС

Ивелин Кулев

Книжка 3
ПРИНЦИПИТЕ НА КАРИЕРНОТО РАЗВИТИЕ НА МЛАДИЯ УЧЕН

И. Панчева, М. Недялкова, С. Кирилова, П. Петков, В. Симеонов

UTILISATION OF THE STATIC EVANS METHOD TO MEASURE MAGNETIC SUSCEPTIBILITIES OF TRANSITION METAL ACETYLACETONATE COMPLEXES AS PART OF AN UNDERGRADUATE INORGANIC LABORATORY CLASS

Anton Dobzhenetskiy, Callum A. Gater, Alexander T. M. Wilcock, Stuart K. Langley, Rachel M. Brignall, David C. Williamson, Ryan E. Mewis

A TALE OF SEVEN SCIENTISTS

Savina Kirilova

Книжка 2
DEVELOPMENT OF A LESSON PLAN ON THE TEACHING OF MODULE “WATER CONDUCTIVITY”

A. Thysiadou, S. Christoforidis, P. Giannakoudakis

AMPEROMETRIC NITRIC OXIDE SENSOR BASED ON MWCNT CHROMIUM(III) OXIDE NANOCOMPOSITE

Arsim Maloku, Epir Qeriqi, Liridon S. Berisha, Ilir Mazreku, Tahir Arbneshi, Kurt Kalcher

THE EFFECT OF AGING TIME ON Mg/Al HYDROTALCITES STRUCTURES

Eddy Heraldy, Triyono, Sri Juari Santosa, Karna Wijaya, Shogo Shimazu

Книжка 1
A CONTENT ANALYSIS OF THE RESULTS FROM THE STATE MATRICULATION EXAMINATION IN MATHEMATICS

Elena Karashtranova, Nikolay Karashtranov, Vladimir Vladimirov

SOME CONCEPTS FROM PROBABILITY AND STATISTICS AND OPPORTUNITIES TO INTEGRATE THEM IN TEACHING NATURAL SCIENCES

Elena Karashtranova, Nikolay Karashtranov, Nadezhda Borisova, Dafina Kostadinova

45. МЕЖДУНАРОДНА ОЛИМПИАДА ПО ХИМИЯ

Донка Ташева, Пенка Василева

2018 година
Книжка 6
ЗДРАВЕ И ОКОЛНА СРЕДА

Кадрие Шукри, Светлана Великова, Едис Мехмед

РОБОТИКА ЗА НАЧИНАЕЩИ ЕНТУСИАСТИ

Даниела Узунова, Борис Велковски, Илко Симеонов, Владислав Шабански, Димитър Колев

DESIGN AND DOCKING STUDIES OF HIS-LEU ANALOGUES AS POTENTIOAL ACE INHIBITORS

Rumen Georgiev, , Tatyana Dzimbova, Atanas Chapkanov

ELECTROCHEMICAL IMPEDANCE STUDY OF BSCCO (2212) CUPRATE CERAMIC ADDITIVE TO THE ZINC ELECTRODE IN Ni-Zn BATTERIES

A. Vasev, P. Lilov, G. Ivanova, Y. Marinov, A. Stoyanova, V. Mikli, A. Stoyanova-Ivanova

CALIBRATION OF GC/MS METHOD FOR DETERMINATION OF PHTHALATES

N. Dineva, I. Givechev, D. Tanev, D. Danalev

SONOCHEMICAL SYNTHESIS OF 4-AMINOANTIPYRINE SCHIFF BASES A ND EVALUATION OF THEIR ANTIMICROBIAL, ANTI-TYROSINASE AND DPPH SCAVENGING ACTIVITIES

Maya Chochkova, Boyka Stoykova, Iva Romanova, Petranka Petrova, Iva Tsvetkova, Hristo Najdenski, Lubomira Nikolaeva- Glomb, Nadya Nikolova, Galya Ivanova, Atanas Chapkanov, Tsenka Milkova, Martin Štícha, Ivan Nemec

ELECTROSYNTHESIS OF CADMIUM SELENIDE NANOPARTICLES WITH SIMULTANEOUS EXTRACTION INTO P-XYLENE

S. S. Fomanyuk, V. O. Smilyk, G. Y. Kolbasov, I. A. Rusetskyi, T. A. Mirnaya

БИОЛОГИЧЕН АСПЕКТ НА РЕКАНАЛИЗАЦИЯ С ВЕНОЗНА ТРОМБОЛИЗА

Мариела Филипова, Даниела Попова, Стоян Везенков

Книжка 5
ИМОБИЛИЗИРАНЕНАФРУКТОЗИЛТРАНСФЕРАЗА ВЪРХУКОМПОЗИТНИФИЛМИОТПОЛИМЛЕЧНА КИСЕЛИНА, КСАНТАН И ХИТОЗАН

Илия Илиев, Тонка Василева, Веселин Биволарски, Ася Виранева, Иван Бодуров, Мария Марудова, Теменужка Йовчева

ELECTRICAL IMPEDANCE SPECTROSCOPY OF GRAPHENE-E7 LIQUID-CRYSTAL NANOCOMPOSITE

Todor Vlakhov, Yordan Marinov, Georgi. Hadjichristov, Alexander Petrov

ON THE POSSIBILITY TO ANALYZE AMBIENT NOISERECORDED BYAMOBILEDEVICETHROUGH THE H/V SPECTRAL RATIO TECHNIQUE

Dragomir Gospodinov, Delko Zlatanski, Boyko Ranguelov, Alexander Kandilarov

RHEOLOGICAL PROPERTIES OF BATTER FOR GLUTEN FREE BREAD

G. Zsivanovits, D. Iserliyska, M. Momchilova, M. Marudova

ПОЛУЧАВАНЕ НА ПОЛИЕЛЕКТРОЛИТНИ КОМПЛЕКСИ ОТ ХИТОЗАН И КАЗЕИН

Антоанета Маринова, Теменужка Йовчева, Ася Виранева, Иван Бодуров, Мария Марудова

CHEMILUMINESCENT AND PHOTOMETRIC DETERMINATION OF THE ANTIOXIDANT ACTIVITY OF COCOON EXTRACTS

Y. Evtimova, V. Mihailova, L. A. Atanasova, N. G. Hristova-Avakumova, M. V. Panayotov, V. A. Hadjimitova

ИЗСЛЕДОВАТЕЛСКИ ПРАКТИКУМ

Ивелина Димитрова, Гошо Гоев, Савина Георгиева, Цвета Цанова, Любомира Иванова, Борислав Георгиев

Книжка 4
PARAMETRIC INTERACTION OF OPTICAL PULSES IN NONLINEAR ISOTROPIC MEDIUM

A. Dakova, V. Slavchev, D. Dakova, L. Kovachev

ДЕЙСТВИЕ НА ГАМА-ЛЪЧИТЕ ВЪРХУ ДЕЗОКСИРИБОНУКЛЕИНОВАТА КИСЕЛИНА

Мирела Вачева, Хари Стефанов, Йоана Гвоздейкова, Йорданка Енева

RADIATION PROTECTION

Natasha Ivanova, Bistra Manusheva

СРАВНИТЕЛЕН АНАЛИЗ НА СЪДЪРЖАЩИТЕ СЕ ЕСТЕСТВЕНИ РАДИОНУКЛИДИ В НЕВЕН И ЛАЙКА

Сияна Димова, Цветелина Стефанова, Йорданка Енева, Нина Архангелова

СТАБИЛНОСТ НА ЕМУЛСИИ ОТ ТИПА МАСЛО/ ВОДА С КОНЮГИРАНА ЛИНОЛОВА КИСЕЛИНА

И. Милкова-Томова, Д. Бухалова, К. Николова, И. Алексиева, И. Минчев, Г. Рунтолев

THE EFFECT OF EXTRA VIRGIN OLIVE OIL ON THE HUMAN BODY AND QUALITY CONTROL BY USING OPTICAL METHODS

Carsten Tottmann, Valentin Hedderich, Poli Radusheva, Krastena Nikolova

ИНФРАЧЕРВЕНА ТЕРМОГРАФИЯ ЗА ДИАГНОСТИКА НА ФОКАЛНА ИНФЕКЦИЯ

Рая Грозданова-Узунова, Тодор Узунов, Пепа Узунова

ЕКСПЕРИМЕНТЪТ ПО ПРИЛОЖНА ФИЗИКА И НЕГОВАТА РОЛЯ ПРИ УСВОЯВАНЕТО НА ПРАКТИКО-ПРИЛОЖНИТЕ ЗНАНИЯ ОТ КУРСАНТИТЕ И СТУДЕНТИТЕ

Николай Тодоров Долчинков, Бонка Енчева Караиванова-Долчинкова, Nikolay Dolchinkov, Bonka Karaivanova-Dolchinkova

ЕЛЕКТРИЧНИ СВОЙСТВА НА КОМПОЗИТНИ ФИЛМИ ОТ ПОЛИМЛЕЧНА КИСЕЛИНА

Ася Виранева, Иван Бодуров, Теменужка Йовчева

Книжка 3
PHYSICS IS AN EVER YOUNG SCIENCE

Temenuzhka Yovcheva

ТРИ ИДЕИ ЗА ЕФЕКТИВНО ОБУЧЕНИЕ

Гергана Карафезиева

МАГИЯТА НА ТВОРЧЕСТВОТО КАТО ПЪТ НА ЕСТЕСТВЕНО УЧЕНЕ В УЧЕБНИЯ ПРОЦЕС

Гергана Добрева, Жаклин Жекова, Михаела Чонос

ОБУЧЕНИЕ ПО ПРИРОДНИ НАУКИ ЧРЕЗ МИСЛОВНИ КАРТИ

Виолета Стоянова, Павлина Георгиева

ИГРА НА ДОМИНО В ЧАС ПО ФИЗИКА

Росица Кичукова, Ценка Маринова

ТЪМНАТА МАТЕРИЯ В КЛАСНАТА СТАЯ

Симона Стоянова, Анета Маринова

ПРОБЛЕМИ ПРИ ОБУЧЕНИЕТО ПО ФИЗИКА ВЪВ ВВМУ „Н. Й. ВАПЦАРОВ“

А. Христова, Г. Вангелов, И. Ташев, М. Димидов

ИЗГРАЖДАНЕ НА СИСТЕМА ОТ УЧЕБНИ ИНТЕРНЕТ РЕСУРСИ ПО ФИЗИКА И ОЦЕНКА НА ДИДАКТИЧЕСКАТА ИМ СТОЙНОСТ

Желязка Райкова, Георги Вулджев, Наталия Монева, Нели Комсалова, Айше Наби

ИНОВАЦИИ В БОРБАТА С ТУМОРНИ ОБРАЗУВАНИЯ – ЛЕЧЕНИЕ ЧРЕЗ БРАХИТЕРАПИЯ

Георги Върбанов, Радостин Михайлов, Деница Симеонова, Йорданка Енева

NATURAL RADIONUCLIDES IN DRINKING WATER

Natasha Ivanova, Bistra Manusheva

Книжка 2
АДАПТИРАНЕ НА ОБРАЗОВАНИЕТО ДНЕС ЗА УТРЕШНИЯ ДЕН

И. Панчева, М. Недялкова, П. Петков, Х. Александров, В. Симеонов

INTEGRATED ENGINEERING EDUCATION: THE ROLE OF ANALYSIS OF STUDENTS’ NEEDS

Veselina Kolarski, Dancho Danalev, Senia Terzieva

Книжка 1
ZAGREB CONNECTION INDICES OF \(\mathrm{TiO}_{2}\) NANOTUBES

Sohaib Khalid, Johan Kok, Akbar Ali, Mohsin Bashir

SYNTHESIS OF NEW 3-[(CHROMEN-3-YL) ETHYLIDENEAMINO] -PHENYL] -THIAZOLIDIN-4ONES AND THEIR ANTIBACTERIAL ACTIVITY

Ramiz Hoti, Naser Troni, Hamit Ismaili, Malesore Pllana, Musaj Pacarizi, Veprim Thaçi, Gjyle Mulliqi-Osmani

2017 година
Книжка 6
GEOECOLOGICAL ANALYSIS OF INDUSTRIAL CITIES: ON THE EXAMPLE OF AKTOBE AGGLOMERATION

Zharas Berdenov, Erbolat Mendibaev, Talgat Salihov, Kazhmurat Akhmedenov, Gulshat Ataeva

TECHNOGENESIS OF GEOECOLOGICAL SYSTEMS OF NORTHEN KAZAKHSTAN: PROGRESS, DEVELOPMENT AND EVOLUTION

Kulchichan Dzhanaleyeva, Gulnur Mazhitova, Altyn Zhanguzhina, Zharas Berdenov, Tursynkul Bazarbayeva, Emin Atasoy

Книжка 5
47-А НАЦИОНАЛНА КОНФЕРЕНЦИЯ НА УЧИТЕЛИТЕ ПО ХИМИЯ

В последните години тези традиционни за българското учителство конфе- ренции се организират от Българското дружество по химическо образование и история и философия на химията. То е асоцииран член на Съюза на химици- те в България, който пък е член на Европейската асоциация на химическите и

SYNTHESIS OF TiO 2-M (Cd, Co, Mn) AS A PHOTOCATALYST DEGRADATION OF METHYLENE BLUE DYE

Candra Purnawan, Sayekti Wahyuningsih, Dwita Nur Aisyah

EFFECT OF DIFFERENT CADMIUM CONCENTRATION ON SOME BIOCHEMICAL PARAMETERS IN ‘ISA BROWN’ HYBRID CHICKEN

Imer Haziri, Adem Rama, Fatgzim Latifi, Dorjana Beqiraj-Kalamishi, Ibrahim Mehmeti, Arben Haziri

PHYTOCHEMICAL AND <i>IN VITRO</i> ANTIOXIDANT STUDIES OF <i>PRIMULA VERIS</i> (L.) GROWING WILD IN KOSOVO

Ibrahim Rudhani, Florentina Raci, Hamide Ibrahimi, Arben Mehmeti, Ariana Kameri, Fatmir Faiku, Majlinda Daci, Sevdije Govori, Arben Haziri

Книжка 4
„СИМВОЛНИЯТ КАПИТАЛ“ НА БЪЛГАРСКОТО УЧИЛИЩЕ

Николай Цанков, Веска Гювийска

KINETICS OF PHOTO-ELECTRO-ASSISTED DEGRADATION OF REMAZOL RED 5B

Fitria Rahmawati, Tri Martini, Nina Iswati

ALLELOPATHIC AND IN VITRO ANTICANCER ACTIVITY OF STEVIA AND CHIA

Asya Dragoeva, Vanya Koleva, Zheni Stoyanova, Eli Zayova, Selime Ali

NOVEL HETEROARYLAMINO-CHROMEN-2-ONES AND THEIR ANTIBACTERIAL ACTIVITY

Ramiz Hoti, Naser Troni, Hamit Ismaili, Gjyle Mulliqi-Osmani, Veprim Thaçi

Книжка 3
OPTIMIZATION OF ENGINE OIL FORMULATION USING RESPONSE SURFACE METHODOLOGY AND GENETIC ALGORITHM: A COMPARATIVE STUDY

Behnaz Azmoon, Abolfazl Semnani, Ramin Jaberzadeh Ansari, Hamid Shakoori Langeroodi, Mahboube Shirani, Shima Ghanavati Nasab

CHEMOMETRICASSISTEDSPECTROPHOTOMETRIC ESTIMATION OF LANSOPRAZOLE AND DOMEPERIDONE IN BULK AND COMMERCIAL DOSAGE FORM

Farheen Sami, Shahnaz Majeed, Tengku Azlan Shah Tengku Mohammed, Noor Fatin Amalina Kamaruddin, Mohammad Zulhimi Atan, Syed Amir Javid Bukhari, Namra, Bushra Hasan, Mohammed Tahir Ansari

EVALUATION OF ANTIBACTERIAL ACTIVITY OF DIFFERENT SOLVENT EXTRACTS OF <i>TEUCRIUM CHAMAEDRYS</i> (L. ) GROWING WILD IN KOSOVO

Arben Haziri, Fatmir Faiku, Roze Berisha, Ibrahim Mehmeti, Sevdije Govori, Imer Haziri

Книжка 2
ПРИРОДОНАУЧНАТА ГРАМОТНОСТ НА УЧЕНИЦИТЕ В НАЧАЛОТО НА XXI ВЕК – В ТЪРСЕНЕ НА КОНЦЕПТУАЛНО ЕДИНСТВО

Теодора Коларова, Иса Хаджиали, Мимия Докова, Веселин Александров

COMPUTER SIMULATORS: APPLICATION FOR GRADUATES’ADAPTATION AT OIL AND GAS REFINERIES

Irena O. Dolganova, Igor M. Dolganov, Kseniya A. Vasyuchka

SYNTHESIS OF NEW [(3-NITRO-2-OXO-2H-CHROMEN4-YLAMINO) -PHENYL] -PHENYL-TRIAZOLIDIN-4-ONES AND THEIR ANTIBACTERIAL ACTIVITY

Ramiz Hoti, Hamit Ismaili, Idriz Vehapi, Naser Troni, Gjyle Mulliqi-Osmani, Veprim Thaçi

STABILITY OF RJ-5 FUEL

Lemi Türker, Serhat Variş

A STUDY OF BEGLIKTASH MEGALITHIC COMPLEX

Diana Kjurkchieva, Evgeni Stoykov, Sabin Ivanov, Borislav Borisov, Hristo Hristov, Pencho Kyurkchiev, Dimitar Vladev, Irina Ivanova

Книжка 1
2016 година
Книжка 6
THE EFFECT OF KOH AND KCL ADDITION TO THE DESTILATION OF ETHANOL-WATER MIXTURE

Khoirina Dwi Nugrahaningtyas, Fitria Rahmawati, Avrina Kumalasari

Книжка 5
Книжка 4
VOLTAMMERIC SENSOR FOR NITROPHENOLS BASED ON SCREEN-PRINTED ELECTRODE MODIFIED WITH REDUCED GRAPHENE OXIDE

Arsim Maloku, Liridon S. Berisha, Granit Jashari, Eduard Andoni, Tahir Arbneshi

Книжка 3
ИЗСЛЕДВАНЕ НА ПРОФЕСИОНАЛНО-ПЕДАГОГИЧЕСКАТА РЕФЛЕКСИЯ НА УЧИТЕЛЯ ПО БИОЛОГИЯ (ЧАСТ ВТОРА)

Надежда Райчева, Иса Хаджиали, Наташа Цанова, Виктория Нечева

EXISTING NATURE OF SCIENCE TEACHING OF A THAI IN-SERVICE BIOLOGY TEACHER

Wimol Sumranwanich, Sitthipon Art-in, Panee Maneechom, Chokchai Yuenyong

NUTRIENT COMPOSITION OF CUCURBITA MELO GROWING IN KOSOVO

Fatmir Faiku, Arben Haziri, Fatbardh Gashi, Naser Troni

Книжка 2
CONTEXT-BASED CHEMISTRY LAB WORK WITH THE USE OF COMPUTER-ASSISTED LEARNING SYSTEM

N. Y. Stozhko, A. V. Tchernysheva, E.M. Podshivalova, B.I. Bortnik

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ПО ПЪТЯ ON THE ROAD

Б. В. Тошев

INTERDISCIPLINARY PROJECT FOR ENHANCING STUDENTS’ INTEREST IN CHEMISTRY

Stela Georgieva, Petar Todorov, Zlatina Genova, Petia Peneva

2015 година
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COMPLEX SYSTEMS FOR DRUG TRANSPORT ACROSS CELL MEMBRANES

Nikoleta Ivanova, Yana Tsoneva, Nina Ilkova, Anela Ivanova

SURFACE FUNCTIONALIZATION OF SILICA SOL-GEL MICROPARTICLES WITH EUROPIUM COMPLEXES

Nina Danchova, Gulay Ahmed, Michael Bredol, Stoyan Gutzov

INTERFACIAL REORGANIZATION OF MOLECULAR ASSEMBLIES USED AS DRUG DELIVERY SYSTEMS

I. Panaiotov, Tz. Ivanova, K. Balashev, N. Grozev, I. Minkov, K. Mircheva

KINETICS OF THE OSMOTIC PROCESS AND THE POLARIZATION EFFECT

Boryan P. Radoev, Ivan L. Minkov, Emil D. Manev

WETTING BEHAVIOR OF A NATURAL AND A SYNTHETIC THERAPEUTIC PULMONARY SURFACTANTS

Lidia Alexandrova, Michail Nedyalkov, Dimo Platikanov

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TEACHER’S ACCEPTANCE OF STUDENTS WITH DISABILITY

Daniela Dimitrova-Radojchikj, Natasha Chichevska-Jovanova

APPLICATION OF LASER INDUCED BREAKDOWN SPECTROSCOPY AS NONDESDUCTRIVE AND SAFE ANALYSIS METHOD FOR COMPOSITE SOLID PROPELLANTS

Amir Hossein Farhadian, Masoud Kavosh Tehrani, Mohammad Hossein Keshavarz, Seyyed Mohamad Reza Darbany, Mehran Karimi, Amir Hossein Rezayi

THE EFFECT OF DIOCTYLPHTHALATE ON INITIAL PROPERTIES AND FIELD PERFORMANCE OF SOME SEMISYNTHETIC ENGINE OILS

Azadeh Ghasemizadeh, Abolfazl Semnani, Hamid Shakoori Langeroodi, Alireza Nezamzade Ejhieh

QUALITY ASSESSMENT OF RIVER’S WATER OF LUMBARDHI PEJA (KOSOVO)

Fatmir Faiku, Arben Haziri, Fatbardh Gashi, Naser Troni

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БЛАГОДАРЯ ВИ!

Александър Панайотов

ТЕМАТА ВЪГЛЕХИДРАТИ В ПРОГРАМИТЕ ПО ХИМИЯ И БИОЛОГИЯ

Радка Томова, Елена Бояджиева, Миглена Славова, Мариан Николов

BILINGUAL COURSE IN BIOTECHNOLOGY: INTERDISCIPLINARY MODEL1)

V. Kolarski, D. Marinkova, R. Raykova, D. Danalev, S. Terzieva

ХИМИЧНИЯТ ОПИТ – НАУКА И ЗАБАВА

Елица Чорбаджийска, Величка Димитрова, Магдалена Шекерлийска, Галина Бальова, Методийка Ангелова

ЕКОЛОГИЯТА В БЪЛГАРИЯ

Здравка Костова

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SYNTHESIS OF FLUORINATED HYDROXYCINNAMOYL DERIVATIVES OF ANTI-INFLUENZA DRUGS AND THEIR BIOLOGICAL ACTIVITY

Boyka Stoykova, Maya Chochkova, Galya Ivanova, Luchia Mukova, Nadya Nikolova, Lubomira Nikolaeva-Glomb, Pavel Vojtíšek, Tsenka Milkova, Martin Štícha, David Havlíček

SYNTHESIS AND ANTIVIRAL ACTIVITY OF SOME AMINO ACIDS DERIVATIVES OF INFLUENZA VIRUS DRUGS

Radoslav Chayrov, Vesela Veselinova, Vasilka Markova, Luchia Mukova, Angel Galabov, Ivanka Stankova

NEW DERIVATIVES OF OSELTAMIVIR WITH BILE ACIDS

Kiril Chuchkov, Silvia Nakova, Lucia Mukova, Angel Galabov, Ivanka Stankova

MONOHYDROXY FLAVONES. PART III: THE MULLIKEN ANALYSIS

Maria Vakarelska-Popovska, Zhivko Velkov

LEU-ARG ANALOGUES: SYNTHESIS, IR CHARACTERIZATION AND DOCKING STUDIES

Tatyana Dzimbova, Atanas Chapkanov, Tamara Pajpanova

LACTOBACILLUS PLANTARUM AC 11S AS A BIOCATALYST IN MICROBIAL ELECYTOLYSIS CELL

Elitsa Chorbadzhiyska, Yolina Hubenova, Sophia Yankova, Dragomir Yankov, Mario Mitov

STUDYING THE PROCESS OF DEPOSITION OF ANTIMONY WITH CALCIUM CARBONATE

K. B. Omarov, Z. B. Absat, S. K. Aldabergenova, A. B. Siyazova, N. J. Rakhimzhanova, Z. B. Sagindykova

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TEACHING CHEMISTRY AT TECHNICAL UNIVERSITY

Lilyana Nacheva-Skopalik, Milena Koleva

ФОРМИРАЩО ОЦЕНЯВАНЕ PEER INSTRUCTION С ПОМОЩТА НА PLICКERS ТЕХНОЛОГИЯТА

Ивелина Коцева, Мая Гайдарова, Галина Ненчева

VAPOR PRESSURES OF 1-BUTANOL OVER WIDE RANGE OF THEMPERATURES

Javid Safarov, Bahruz Ahmadov, Saleh Mirzayev, Astan Shahverdiyev, Egon Hassel

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РУМЕН ЛЮБОМИРОВ ДОЙЧЕВ (1938 – 1999)

Огнян Димитров, Здравка Костова

NAMING OF CHEMICAL ELEMENTS

Maria Atanassova

2014 година
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LUBRICATION PROPERTIES OF DIFFERENT PENTAERYTHRITOL-OLEIC ACID REACTION PRODUCTS

Abolfazl Semnani, Hamid Shakoori Langeroodi, Mahboube Shirani

ALLELOPATHIC AND CYTOTOXIC ACTIVITY OF ORIGANUM VULGARE SSP. VULGARE GROWING WILD IN BULGARIA

Asya Pencheva Dragoeva, Vanya Petrova Koleva, Zheni Dimitrova Nanova, Mariya Zhivkova Kaschieva, Irina Rumenova Yotova

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GENDER ISSUES OF UKRAINIAN HIGHER EDUCATION

Н.H.Petruchenia, M.I.Vorovka

МНОГОВАРИАЦИОННА СТАТИСТИЧЕСКА ОЦЕНКА НА DREEM – БЪЛГАРИЯ: ВЪЗПРИЕМАНЕ НА ОБРАЗОВАТЕЛНАТА СРЕДА ОТ СТУДЕНТИТЕ В МЕДИЦИНСКИЯ УНИВЕРСИТЕТ – СОФИЯ

Радка Томова, Павлина Гатева, Радка Хаджиолова, Зафер Сабит, Миглена Славова, Гергана Чергарова, Васил Симеонов

MUSSEL BIOADHESIVES: A TOP LESSON FROM NATURE

Saâd Moulay Université Saâd Dahlab de Blida, Algeria

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ЕЛЕКТРОННО ПОМАГАЛO „ОТ АТОМА ДО КОСМОСА“ ЗА УЧЕНИЦИ ОТ Х КЛАС

Силвия Боянова Професионална гимназия „Акад. Сергей П. Корольов“ – Дупница

ЕСЕТО КАТО ИНТЕГРАТИВЕН КОНСТРУКТ – НОРМАТИВЕН, ПРОЦЕСУАЛЕН И ОЦЕНЪЧНО-РЕЗУЛТАТИВЕН АСПЕКТ

Надежда Райчева, Иван Капурдов, Наташа Цанова, Иса Хаджиали, Снежана Томова

44<sup>-ТA</sup> МЕЖДУНАРОДНА ОЛИМПИАДА ПО ХИМИЯ

Донка Ташева, Пенка Василева

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Наташа Цанова, Иса Хаджиали, Надежда Райчева

COMPUTER ASSISTED LEARNING SYSTEM FOR STUDYING ANALYTICAL CHEMISTRY

N. Y. Stozhko, A. V. Tchernysheva, L.I. Mironova

С РАКЕТНА ГРАНАТА КЪМ МЕСЕЦА: БОРБА С ЕДНА ЛЕДЕНА ЕПОХА В ГОДИНАТА 3000 СЛЕД ХРИСТА. 3.

С РАКЕТНА ГРАНАТА КЪМ МЕСЕЦА:, БОРБА С ЕДНА ЛЕДЕНА ЕПОХА, В ГОДИНАТА 000 СЛЕД ХРИСТА. .

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ВИСША МАТЕМАТИКА ЗА УЧИТЕЛИ, УЧЕНИЦИ И СТУДЕНТИ: ДИФЕРЕНЦИАЛНО СМЯТАНЕ

Б. В. Тошев Българско дружество за химическо образование и история и философия на химията

ВАСИЛ ХРИСТОВ БОЗАРОВ

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ЖИВАТА ПРИРОДА

Б. В. Тошев

БИБЛИОГРАФИЯ НА СТАТИИ ЗА МИСКОНЦЕПЦИИТЕ В ОБУЧЕНИЕТО ПО ПРИРОДНИ НАУКИ ВЪВ ВСИЧКИ ОБРАЗОВАТЕЛНИ НИВА

Б. В. Тошев Българско дружество за химическо образование и история и философия на химията

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BOTYU ATANASSOV BOTEV

Zdravka Kostova, Margarita Topashka-Ancheva

CHRONOLOGY OF CHEMICAL ELEMENTS DISCOVERIES

Maria Atanassova, Radoslav Angelov

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КАК ДА МОТИВИРАМЕ УЧЕНИЦИТЕ OT VII КЛАС ДА УЧАТ

Маргарита Бозова, Петко Бозов

ОБРАЗОВАНИЕ ЗА ПРИРОДОНАУЧНА ГРАМОТНОСТ

Адриана Тафрова-Григорова

2013 година
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DIFFERENTIAL TEACHING IN SCHOOL SCIENCE EDUCATION: CONCEPTUAL PRINCIPLES

G. Yuzbasheva Kherson Academy of Continuing Education, Ukraine

АНАЛИЗ НА ПОСТИЖЕНИЯТА НА УЧЕНИЦИТЕ ОТ ШЕСТИ КЛАС ВЪРХУ РАЗДЕЛ „ВЕЩЕСТВА И ТЕХНИТЕ СВОЙСТВА“ ПО „ЧОВЕКЪТ И ПРИРОДАТА“

Иваничка Буровска, Стефан Цаковски Регионален инспекторат по образованието – Ловеч

HISTORY AND PHILOSOPHY OF SCIENCE: SOME RECENT PERIODICALS (2013)

Chemistry: Bulgarian Journal of Science Education

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„Образователни стандарти и природонаучна грамотност“ – това е темата на състоялата се от 25 до 27 октомври 2013 г. в Габрово 45. Национална конфе- ренция на учителите по химия с международно участие, която по традиция се проведе комбинирано с Годишната конференция на Българското дружество за химическо образование и история и философия на химията. Изборът на темата е предизвикан от факта, че развиването на природонаучна грамотност е обща тенденция на реформите на учебните програми и главна

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ЗА ХИМИЯТА НА БИРАТА

Ивелин Кулев

МЕТЕОРИТЪТ ОТ БЕЛОГРАДЧИК

Б. В. Тошев Българско дружество за химическо образование и история и философия на химията

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RECASTING THE DERIVATION OF THE CLAPEYRON EQUATION INTO A CONCEPTUALLY SIMPLER FORM

Srihari Murthy Meenakshi Sundararajan Engineering College, India

CHEMICAL REACTIONS DO NOT ALWAYS MODERATE CHANGES IN CONCENTRATION OF AN ACTIVE COMPONENT

Joan J. Solaz-Portolés, Vicent Sanjosé Universitat de Valènciа, Spain

POLYMETALLIC COMPEXES: CV. SYNTHESIS, SPECTRAL, THERMOGRAVIMETRIC, XRD, MOLECULAR MODELLING AND POTENTIAL ANTIBACTERIAL PROPERTIES OF TETRAMERIC COMPLEXES OF Co(II), Ni(II), Cu(II), Zn(II), Cd(II) AND Hg(II) WITH OCTADENTATE AZODYE LIGANDS

Bipin B. Mahapatra, S. N. Dehury, A. K. Sarangi, S. N. Chaulia G. M. Autonomous College, India Covt. College of Engineering Kalahandi, India DAV Junior College, India

ПРОФЕСОР ЕЛЕНА КИРКОВА НАВЪРШИ 90 ГОДИНИ

CELEBRATING 90TH ANNIVERSARY OF PROFESSOR ELENA KIRKOVA

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SIMULATION OF THE FATTY ACID SYNTHASE COMPLEX MECHANISM OF ACTION

M.E.A. Mohammed, Ali Abeer, Fatima Elsamani, O.M. Elsheikh, Abdulrizak Hodow, O. Khamis Haji

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G. Yuzbasheva Kherson Academy of Continuing Education, Ukraine

ИЗСЛЕДВАНЕ НА РАДИКАЛ-УЛАВЯЩА СПОСОБНОСТ

Станислав Станимиров, Живко Велков

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COLORFUL EXPERIMENTS FOR STUDENTS: SYNTHESIS OF INDIGO AND DERIVATIVES

Vanessa BIANDA, Jos-Antonio CONSTENLA, Rolf HAUBRICHS, Pierre-Lonard ZAFFALON

OBSERVING CHANGE IN POTASSIUM ABUNDANCE IN A SOIL EROSION EXPERIMENT WITH FIELD INFRARED SPECTROSCOPY

Mila Ivanova Luleva, Harald van der Werff, Freek van der Meer, Victor Jetten

ЦАРСКАТА ПЕЩЕРА

Рафаил ПОПОВ

УЧИЛИЩНИ ЛАБОРАТОРИИ И ОБОРУДВАНЕ SCHOOL LABORATORIES AND EQUIPMENT

Учебни лаборатории Илюстрации от каталог на Franz Hugershoff, Лайциг, притежаван от бъдещия

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ADDRESING STUDENTS’ MISCONCEPTIONS CONCERNING CHEMICAL REACTIONS AND SYMBOLIC REPRESENTATIONS

Marina I. Stojanovska, Vladimir M. Petruševski, Bojan T. Šoptrajanov

АНАЛИЗ НА ПОСТИЖЕНИЯТА НА УЧЕНИЦИТЕ ОТ ПЕТИ КЛАС ВЪРХУ РАЗДЕЛ „ВЕЩЕСТВА И ТЕХНИТЕ СВОЙСТВА“ ПО ЧОВЕКЪТ И ПРИРОДАТА

Иваничка Буровска, Стефан Цаковски Регионален инспекторат по образованието – Ловеч

ЕКОТОКСИКОЛОГИЯ

Васил Симеонов

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Проф. Методий Попов (1881-1954) Госпожици и Господа студенти,

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КОНЦЕПТУАЛНА СХЕМА НА УЧИЛИЩНИЯ КУРС П О ХИМИЯ – МАКР О СКОПСКИ ПОДХОД

Б. В. Тошев Българско дружество за химическо образование и история и философия на химията

ROLE OF ULTRASONIC WAVES TO STUDY MOLECULAR INTERACTIONS IN AQUEOUS SOLUTION OF DICLOFENAC SODIUM

Sunanda S. Aswale, Shashikant R. Aswale, Aparna B. Dhote Lokmanya Tilak Mahavidyalaya, INDIA Nilkanthrao Shinde College, INDIA

SIMULTANEOUS ESTIMATION OF IBUPROFEN AND RANITIDINE HYDROCHLORIDE USING UV SPECTROPHOT O METRIC METHOD

Jadupati Malakar, Amit Kumar Nayak Bengal College of Pharmaceutical Sciences and Research, INDIA

GAPS AND OPPORTUNITIES IN THE USE OF REMOTE SENSING FOR SOIL EROSION ASSESSMENT

Mila Ivanova Luleva, Harald van der Werff, Freek van der Meer, Victor Jetten

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TEACHING THE CONSTITUTION OF MATTER

Małgorzata Nodzyńska, Jan Rajmund Paśko

СЪСИРВАЩА СИСТЕМА НА КРЪВТА

Маша Радославова, Ася Драгоева

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CATALITIC VOLCANO

43-ТА МЕЖДУНАРОДНА ОЛИМПИАДА ПО ХИМИЯ

Донка ТАШЕВА, Пенка ЦАНОВА

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Чл. 1. Съставянето и издаване на учебници се предоставя на частната инициа- тива. Забележка: На учителите – съставители на учебници се запрещава сами да разпродават своите учебници. Чл. 2. Министерството на народното просвещение може да определя премии по конкурс за съставяне на учебници за горните класове на гимназиите и специ- алните училища. Чл. 3. Никой учебник не може да бъде въведен в училищата, ако предварително не е прегледан и одобрен от Министерството на народното просвещение. Чл.

JOHN DEWEY: HOW WE THINK (1910)

John Dewey (1859 – 1952)

ИНФОРМАЦИЯ ЗА СПЕЦИАЛНОСТИТЕ В ОБЛАСТТА НА ПРИРОДНИТЕ НАУКИ В СОФИЙСКИЯ УНИВЕРСИТЕТ „СВ. КЛИМЕНТ ОХРИДСКИ“ БИОЛОГИЧЕСКИ ФАКУЛТЕТ

1. Биология Студентите от специалност Биология придобиват знания и практически умения в областта на биологическите науки, като акцентът е поставен на организмово равнище. Те се подготвят да изследват биологията на организмите на клетъчно- организмово, популационно и екосистемно ниво в научно-функционален и прило- жен аспект, с оглед на провеждане на научно-изследователска, научно-приложна, производствена и педагогическа дейност. Чрез широк набор избираеми и факул- тативни курсове студентите

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УЧИТЕЛИТЕ ПО ПРИРОДНИ НАУКИ – ЗА КОНСТРУКТИВИСТКАТА УЧЕБНА СРЕДА В БЪЛГАРСКОТО УЧИЛИЩЕ

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„МАГИЯТА НА ХИМИЯТА“ – ВЕЧЕР НА ХИМИЯТА В ЕЗИКОВА ГИМНАЗИЯ „АКАД. Л. СТОЯНОВ“ БЛАГОЕВГРАД

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Бурният развой на естествознанието във всичките му клонове през XIX –ия век предизвика дълбоки промени в мирогледа на културния свят, в техниката и в индустрията, в социалните отношения и в държавните интереси. Можем ли днес да си представим един философ, един държавен мъж, един обществен деец, един индустриалец, просто един културен човек, който би могъл да игнорира придобив- ките на природните науки през последния век. Какви ужасни катастрофи, какви социални сътресения би сполетяло съвре

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MURPHY’S LAW IN CHEMISTRY

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Семейството трябва да познава училишето и училишето трябва да познава семейството. Взаимното познанство се налага от обстоятелството, че те, макар и да са два различни по природата си фактори на възпитанието, преследват една и съща проста цел – младото поколение да бъде по-умно, по-нравствено, физически по-здраво и по-щастливо от старото – децата да бъдат по-щастливи от родителите