Обучение по природни науки и върхови технологии

2017/3, стр. 332 - 340

PERCEPTION OF PRESERVICE SCIENCE TEACHERS IN THE CONSTRUCTIVIST SCIENCE LEARNING ENVIRONMENT

Prasart Nuangchalerm
E-mail: prasart.n@msu.ac.th
Department of Curriculum and Instruction
Faculty of Education
Mahasarakham University, Thailand
Jiří Dostál

Резюме: Science learning was affected by various kinds of sources which students perceived and participated in classroom. The purpose of this study aims to investigate the science learning environment of preservice science teachers from Thailand and Czech Republic. Data were collected from 72 Czech and 37 Thai preservice science teachers by the six-element of CLES questionnaire. Findings revealed that preservice science teachers from Czech and Thai contexts had different level of constructivist science learning environment which is concerned classroom learning environments, and knowledge base for applying constructivist teaching into classroom. This may have implications for enhancing constructivist teaching in school context.

Ключови думи: learning environment; constructivist; CLES; national study

Introduction

Teacher is the professional decision making in classroom activities, a key success to effective in science teaching and learning. Teacher preparation program is a part of performing competence teachers into changing sociocultural of various school contexts. In addition, school practicum seems to preservice teachers in which a place of implementation their authority of experience in decision making, controlling students’ behavior, creating flexible instructional activities, developing constructivist learning environments, and shaping in their professional experiences. The most preservice teachers have been subjected to the authority of reason and the authority of position and are influenced by these authorities that tell them what to do and what to believe (Prachagool et al., 2016). Teacher preparation program need to prepare teacher candidates for changes in modern society and knowledge-based society.

The challenge for teacher preparation program is to help new teachers recognize and identify the place and function of the authority of experience. They have to learn creating classroom environments which it meets the real need of students, current of instructional reform, and nature of 21st century learning. Decision making to constructivist learning environments cannot be ignored in the program because they have to bring it to professional experiences and consider as well as pedagogical, psychological, and philosophical implementations. Due to, constructivist view is powerful knowledge about natural world, understand how it changes and live with others critically (Duit & Treagust, 1995). In response to this challenge helping preservice teacher to understanding and offering the guidelines for teacher education by their university course work and practicum in school (Clift & Brady, 2005; Grisham et al., 2000). The goal is to have the teacher candidates not only see the relevance and importance of their studies, but also reflect critically since those studies have immediate causal effect on their present pedagogical and managerial contexts as professional teachers (Gruenewald, 2003). The changing world is now making science classroom and learning environment seem to be differenced. Preservice teachers must be adapted to have suitable ways that promotes constructivist learners.

Science learning aims to help students understand about theoretical and practical ways which scientists do, experiment, explore, explain, conclude, and present (Osborne, 2011). The process of science what students should be (a) asking questions and defining problems, what happens and what exists, why does it happen, and how do we know; these questions are starting point investigate and explore of what they want to know; (b) models should be developed to reflect of what they know and understand about natural world. It should be simplified to others when students communicate science; (c) planning and carrying out investigations are need to science learning. The successful in science is not only academic aspect, but also planning to investigate is a starting point of view in all scientists to explain their discoveries; (d) analyzing and interpreting data are crucial process formulating to science communication. Bias is prohibited for science experiment and discovery; (e) using mathematical tools for explaining, predicting, estimating, and presenting; (f) Constructing explanations are significance to science educators, it must be skilled disseminating science to classroom. Communicating through various kinds of methods such as website, journal, seminar, conference, symposium, and etc.; (g) engaging in argument from evidence, explanation in some phenomena may be error or incomplete, argumentation by explicit evidence help to make a decision to information as well; and h) obtaining, evaluating and communicating information cannot be cut from constructivist science. Literacy seems to important because it make science had voice to connect with people (Norris & Phillips, 2003; Tenopir & King, 2004).

The science classroom environment, that is, students expose in science hours are scaffolding their knowledge and understanding, making positive towards science, engaging them to the lesson. This study need to investigate perception of preservice teachers in constructivist learning science environment by employing CLES survey with preservice teachers from Thailand and Czech Republic. The research findings help us to prepare professional teachers through the program which constructivist science learning environment should be included and developed.

Methodology

The participants were preservice science teachers from Mahasarakham University (Thailand) and Palacký University in Olomouc (Czech Republic). They were asked for perception about constructivist learning science environment. The study revised the Constructivist Learning Environment Survey (CLES), is being used to study teachers and students perceptions about classroom learning environments. The CLES were adapted from Taylor & Fraser (1991) and Taylor et al. (1997), which the questionnaires are for assessing students’ perception of their constructivist-based learning environment in order to reshape teachers’ practices. The CLES consists of five six-item scales, namely, Personal Relevance, Uncertainty, Critical Voice, Shared Control and Student Negotiation and will be used in the study. The five elements of CLES could be explained as below.

Personal Relevance (PR) focuses on the connectedness of school where science in students’ eyed are based on out-of-school experiences. The everyday use of students’ experiences is a meaningful context for the development of students’ scientific and mathematical knowledge.

Uncertainty (UN) refers to the extent to which opportunities are provided for students to experience scientific knowledge as arising from theory-dependent inquiry involving human experience and values, and as evolving, non-foundational, and culturally and socially determined.

Critical Voice (CV) examines the extent to which a social climate has been established where students feel that it is beneficial to question the teacher’s pedagogical plans and methods and to express their learning concerns about any issues.

Shared Control (SC) is concerned with students being invited to share with the teacher control of the learning environment, including the articulation of learning goals, the design and arrangement of learning activities, and the determination and application of assessment criteria.

Student Negotiation (SN) is a scale for assessing the extent to which opportunities exist for students to explain and justify to other students’ newly developing ideas, to listen attentively and reflect on the viability of other students’ ideas and, subsequently, and to reflect self-critically on the viability of their own ideas.

Data were collected through the academic collaboration between Czech and Thai colleagues. Seventy two Czech and 37 Thai preservice science teachers participated in the constructivist science learning environment study. Data were analyzed by descriptive statistics, mean and standard deviation. Data were shown for presenting how preservice teachers perceived constructivist science learning environment in their different opinions by indicating into 5 levels of mean for interpreting: highest (4.51-5.00), high (3.51-4.50), medium (2.51-3.50), low (1.51-2.50), and lowest (1.00-1.50). Then data were manipulated and described in terms of level of constructivist science learning environment. ANOVA and independent t-test were used for testing hypothesis.

Findings

Constructivist science learning environment was investigated through the collaboration of Czech and Thai study. The exploration can be summarized in Table 1 to supporting how constructivist science learning environment occurred in the different contexts.

Table 1. Level of perception in the constructivist science learning environment between Czech Republic (n=72) and Thailand (n=37)

CountryElementsMeanSDLevelof perceptionCzechRepublicPersonal RelevanceScale1.510.81LowUncertainty2.171.16LowCritical Voice1.590.66LowShared Control3.610.69MediumStudentNegotiation2.480.98LowThailandPersonal RelevanceScale3.570.83HighUncertainty3.580.80HighCritical Voice3.520.76HighShared Control2.550.88MediumStudentNegotiation3.860.81High

CLES elements were shown in the Table 1 indicated that two cohort of preservice science teachers from Czech Republic and Thailand had different level of perception in the constructivist science learning environment. Mean score of Czech preservice science teachers had low-medium level. Personal relevance scale, critical voice, uncertainty, and student negotiation were low, but shared control was medium. While Thai preservice science teachers showed their level in medium-high level. Shared control was medium whereas critical voice, personal relevance scale, uncertainty, and student negotiation were high. To test the differences of perception in constructivist science learning environment between national study, independent t-test was employed for testing hypothesis (Table 2).

Table 2. Testing the perception differences of preservice science teachers by national comparison

CountryMeanSDdftpCzech Republic2.271.167128.44.000Thailand3.420.9336

Table 2 indicated that two national preservice teachers had difference perception at .05 level of statistical significance. Thai preservice teachers had higher mean score than those Czech preservice teachers. Mean score was 3.42 of Thai preservice science teachers and 2.27 of Czech preservice science teachers. Then, Data were also analyzed by ANOVA for testing the differences of five elements of constructivist science learning environment (Table 3). Both Czech and Thai preservice science teachers had differences of elements at .05 level of statistical significance.

Table 3. Testing the variances of elements

CountrySources ofvariancesSSdfMSFpCzechRepublicBetweengroups1257.2524314.313407.115.000Within groups1663.7692155.772Total2921.0202159ThailandBetweengroups222.231455.55883.020.000Within groups739.4771105.669Total961.7081109

Table 3 showed that six elements of constructivist science learning environment study in both Czech and Thai preservice science teachers were no similarity at .05 level of significantly statistics. To understanding how elements were differenced, Post hoc test was employed for analyzing. Scheffe’ procedure was used for correction alpha for pair-wise or simple comparison of means (Table 4).

Table 4. Pair-wise elements of CLES (

CountryElementCzechPRCVUNSCSNThailandPRUNCVSCSNmeans no dierences)

Table 4 showing that in case of Czech preservice teachers had personal relevance and critical voice had no differences, and also critical voice and uncertainty had no differences. While Thai preservice teachers had perception of personal relevance, critical voice and uncertainty had no differences.

Discussion

The classroom environment is may be looked different in the past due to the change in learning environment. In case of Thailand, Chamnanwong & Yuenyong (2014) investigated the science learning environment in Thai primary schools. The study indicated that constructivist science learning environment in different cultures and contexts allowed teachers to applying constructivist teaching into classroom. However, the study is descriptive research which the level of perception of preservice teachers are not reported. While preservice teachers act as key elements to engage constructivist science learning environment into classroom. That is, explorative study in terms of perception should be studied and explain by preliminary investigation. The level of perception constructivist science learning environment in Thai and Czech preservice teachers need to be improved and integrated by instructional strategies. Constructivist science learning environment is a means for facilitating students’ learning of science, increasing participation of students to pay attention in the lesson.1) The finding relevant to the previous study in teacher preparation program Prachagool et al. (2016) discussed that teacher preparation program in Thailand was managerially controlled in standard of teaching by Teacher Council of Thailand (TCT). University and college that concerned teacher production encourage to the standard and quality which TCT required. This reason seems to relevant level of constructivist science learning environment for Thai preservice science teachers. The preparation program cannot deny how to develop preservice teachers to understand philosophy of education, have managerial skills in classroom, creative and problem thinking in classroom, and classroom research.2)

To the element, shared control of constructivist science learning environment, Czech and Thai preservice teachers had medium level of perception, other elements seem to differences. The remark of evidence pointed that personal relevance, uncertainty, critical voice, and student negotiation are differenced, Thai had high level whereas Czech had low level. Data is tested by national comparison also showed that Thai and Czech preservice teachers had differences perception of constructivist science learning environment. However, the exploration is a preliminary survey, constructivist view in difference sociocultural contexts offering by goal of teacher preparation program (Clift & Brady, 2005). Conditions of classroom for open discourse include atmosphere of trust and mutual respect influenced to beliefs (Taylor et.al., 1997). The finding needs to be more exploration how philosophy and practices engage preservice science teachers to enhance construct view in classroom. The constructivist learning seems to be different from those traditional instruction, the constructivist learning environment science allowed theory that providing framework in the relation of sociocultural, environmental, and pedagogical contexts (Jonassen & Rohrer-Murphy, 1999).

The study found also that Czech and Thai preservice science teachers had different perception, that is, constructivist science learning environment concerned their scientific epistemological beliefs and perceptions of constructivist learning environments. They had epistemological beliefs to constructivist views, they also need to aware epistemological orientation towards scientific knowledge, and designing learning experiences (Tsai, 2000). However, the learning environments which constructivist views lead preservice teachers to positive attitudes. The attitudes toward learning experiences and designs can promote personal relevance, shared control with classroom and negotiate to their learning (Kim et al., 1999). The study was found that personal relevance, critical voice and uncertainty no means of differences. It was not surprised to these elements due to the participants had to be good teachers in the future, the program of teacher preparation encouraged them to classroom management by embedding beliefs and attitude towards learning management (Kim et al., 1999). They also learn to manipulate constructivist environments as well as nature of teaching in science (Beck et al., 2000; Aldridge et al., 2004; Ozkal et.al., 2009).

Constructivist science learning environment study from Czech and Thai reported that the different sociocultural contexts and educational policy to teacher preparation program can make preservice science teachers to explore their perception. This study is a preliminary investigation to bridging the gap of awareness in classroom management and pedagogy which teachers should have and should be professional. Personal relevance, critical voice, and uncertainty of elements showed no differences that make us to understand constructivist view in the teacher preparation program, curriculum and instruction, and nature of science teachers.

NOTES

1. http://link.springer.com/article/10.1007/s10763-016-9772-4

2. http://teachercodes.iiep.unesco.org/teachercodes/codes/Asia/Thailand.pdf

REFERENCES

Aldridge, J.M., Fraser, B.J. & Sebela, M.P. (2004). Using teacher action research to promote constructivist learning environments in South Africa. South Afr. J. Educ., 24, 245 – 253.

Beck, J., Czerniak, C.M. & Lumpe, A.T. (2000). An exploratory study of teachers’ beliefs regarding the implementation of constructivism in their classrooms. J. Sci. Teach. Educ., 11, 323 – 343.

Chamnanwong, P. & Yuenyong, C. (2014). Investigation of constructivist science learning environment in Thai primary schools. Mediterranean J. Soc. Sci. 5, 592 – 598.

Clift, R.T. & Brady, P. (2005). Research on methods courses and field experiences (pp. 309 – 424). In: Cochran-Smith, M. & Zeichner, K. (Eds.). Studying teacher education: the report of the AERA panel on research and teacher education. Mahwah: Lawrence Erlbaum.

Daher, W. & Saifi, A.-G. (2016). Democratic practices in a constructivist science classroom. Int. J. Sci. & Math. Educ. 1 – 16.

Duit, R. & Treagust, D.F. (1995). Students’ conceptions and constructivist teaching approaches (pp. 46 – 69). In: Fraser, B.J. & Walberg, H.J. (Eds.). Improving science education. Chicago: University of Chicago Press.

Grisham, D.L., Laguardia, A. & Brink, B. (2000). Partners in professionalism: creating a quality field experience for preservice teachers. Action Teach. Educ., 21(4), 27 – 40.

Gruenewald, D.A. (2003). The best of both worlds: a critical pedagogy of place. Educ. Researcher, 32(4), 3 – 12.

Jonassen, D.H. & Rohrer-Murphy, L. (1999). Activity theory as a framework for designing constructivist learning environments. Educ. Tech. Res. & Dev., 47, 61 – 79.

Kim, H.B., Fisher, D.L. & Fraser, B. J. (1999). Assessment and investigation of constructivist science learning environments in Korea. Res. Sci. & Tech. Educ., 17, 239 – 249.

Norris, S.P. & Phillips, L.M. (2003). How literacy in its fundamental sense is central to scientific literacy. Science Education 87, 224 – 240.

Osborne, J. (2011). Science teaching methods: a rationale for practices. School Sci. Rev.,

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Ozkal, K., Tekkaya, C., Cakiroglu, J. & Sungur, S. (2009). A conceptual model of relationships among constructivist learning environment perceptions, epistemological beliefs, and learning approaches. Learn. & Ind. Di., 19, 71 – 79.

Prachagool, V., Nuangchalerm, P., Subramaniam, G. & Dostál, J. (2016). Pedagogical decision making through the lens of teacher preparation program. J. Educ. Gifted Young Scientists, 4, 41 – 52.

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

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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

НАЙДЕН НАЙДЕНОВ, 1929 – 2014 СПОМЕН ЗА ПРИЯТЕЛЯ

ИНЖ. НАЙДЕН ХРИСТОВ НАЙДЕНОВ, СЕКРЕТАР, НА СЪЮЗА НА ХИМИЦИТЕ В БЪЛГАРИЯ (2.10.1929 – 25.10.2014)

2014 година
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145 ГОДИНИ БЪЛГАРСКА АКАДЕМИЯ НА НАУКИТЕ

145 ANNIVERSARY OF THE BULGARIAN ACADEMY OF SCIENCES

ПАРНО НАЛЯГАНЕ НА РАЗТВОРИ

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

LUBRICATION PROPERTIES OF DIFFERENT PENTAERYTHRITOL-OLEIC ACID REACTION PRODUCTS

Abolfazl Semnani, Hamid Shakoori Langeroodi, Mahboube Shirani

THE ORIGINS OF SECONDARY AND TERTIARY GENERAL EDUCATION IN RUSSIA: HISTORICAL VIEWS FROM THE 21ST CENTURY

V. Romanenko, G. Nikitina Academy of Information Technologies in Education, Russia

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

Донка Ташева, Пенка Василева

ДОЦ. Д.П.Н. АЛЕКСАНДЪР АТАНАСОВ ПАНАЙОТОВ

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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KNOWLEDGE OF AND ATTITUDES TOWARDS WATER IN 5

Antoaneta Angelacheva, Kalina Kamarska

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

Пенка Бозарова, Здравка Костова

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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SCIENTIX – OБЩНОСТ ЗА НАУЧНО ОБРАЗОВАНИЕ В ЕВРОПА

Свежина Димитрова Народна астрономическа обсерватория и планетариум „Николай Коперник“ – Варна

BOTYU ATANASSOV BOTEV

Zdravka Kostova, Margarita Topashka-Ancheva

CHRONOLOGY OF CHEMICAL ELEMENTS DISCOVERIES

Maria Atanassova, Radoslav Angelov

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ОБРАЗОВАНИЕ ЗА ПРИРОДОНАУЧНА ГРАМОТНОСТ

Адриана Тафрова-Григорова

A COMMENTARY ON THE GENERATION OF AUDIENCE-ORIENTED EDUCATIONAL PARADIGMS IN NUCLEAR PHYSICS

Baldomero Herrera-González Universidad Autónoma del Estado de México, Mexico

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

45. НАЦИОНАЛНА КОНФЕРЕНЦИЯ НА УЧИТЕЛИТЕ ПО ХИМИЯ

„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

FORMING OF CONTENT OF DIFFERENTIAL TEACHING OF CHEMISTRY IN SCHOOL EDUCATION OF UKRAINE

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

2012 година
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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

ПРОФ. МЕДОДИЙ ПОПОВ ЗА НАУКАТА И НАУЧНАТА ДЕЙНОСТ (1920 Г.)

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

РАДИОХИМИЯ И АРХЕОМЕТРИЯ: ПРО Ф. ДХН ИВЕЛИН КУЛЕВ RADIOCHEMISTRY AND ARCHEOMETRY: PROF. IVELIN KULEFF, DSc

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

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TEACHING THE CONSTITUTION OF MATTER

Małgorzata Nodzyńska, Jan Rajmund Paśko

СЪСИРВАЩА СИСТЕМА НА КРЪВТА

Маша Радославова, Ася Драгоева

CATALITIC VOLCANO

CATALITIC VOLCANO

43-ТА МЕЖДУНАРОДНА ОЛИМПИАДА ПО ХИМИЯ

Донка ТАШЕВА, Пенка ЦАНОВА

ЮБИЛЕЙ: ПРОФ. ДХН БОРИС ГЪЛЪБОВ JUBILEE: PROF. DR. BORIS GALABOV

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

ПЪРВИЯТ ПРАВИЛНИК ЗА УЧЕБНИЦИТЕ (1897 Г.)

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

Адриана Тафрова-Григорова, Милена Кирова, Елена Бояджиева

ПОВИШАВАНЕ ИНТЕРЕСА КЪМ ИСТОРИЯТА НА ХИМИЧНИТЕ ЗНАНИЯ И ПРАКТИКИ ПО БЪЛГАРСКИТЕ ЗЕМИ

Людмила Генкова, Свобода Бенева Българско дружество за химическо образование и история и философия на химията

НАЧАЛО НА ПРЕПОДАВАНЕТО НА УЧЕБЕН ПРЕДМЕТ ХИМИЯ В АПРИЛОВОТО УЧИЛИЩЕ В ГАБРОВО

Мария Николова Национална Априловска гимназия – Габрово

ПРИРОДОНАУЧНОТО ОБРАЗОВАНИЕ В БЪЛГАРИЯ – ФОТОАРХИВ

В един дълъг период от време гимназиалните учители по математика, физика, химия и естествена

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

Стефка Михайлова Езикова гимназия „Акад. Людмил Стоянов“ – Благоевград

МЕЖДУНАРОДНАТА ГОДИНА НА ХИМИЯТА 2011 В ПОЩЕНСКИ МАРКИ

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

ЗА ПРИРОДНИТЕ НАУКИ И ЗА ПРАКТИКУМА ПО ФИЗИКА (Иванов, 1926)

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

Milan D. Stojković

42-рa МЕЖДУНАРОДНА ОЛИМПИАДА ПО ХИМИЯ

Донка Ташева, Пенка Цанова

СЕМЕЙНИ УЧЕНИЧЕСКИ ВЕЧЕРИНКИ

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