Обучение по природни науки и върхови технологии

2021/3, стр. 271 - 294

PROFESSIONAL DISPOSITIONS OF GRADUATE PRE-SERVICE MATHEMATICS TEACHERS AMONG THREE COLLEGE OF TEACHER EDUCATION IN ETHIOPIA

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Curriculum Matters

Introduction

Teacher education is the procedure designed to equip pre-service teachers with the knowledge and professional disposition necessarily required to perform their tasks effectively in the classroom, schools, and wider community in their future careers. This is to means that the field of mathematics teacher education is grounded on the assumption that someone has to be educated in mathematics to be able to teach it effectively in their future career. So, the major aim of teacher education must be to produce graduate school teachers who are confident and competent in mathematics. To realize this, colleges of teacher education should create adequate learning opportunities for pre-service teachers aiming to develop knowledge of mathematics, knowledge of students, and knowledge and ability to use and evaluate instructional materials and resources (NCTM 1989). In addition to these variables, in teacher education, it is necessary to have in mind the effect of college teacher education programs in terms of the development of professional dispositions. This includes their attitude and self-efficacy towards mathematics and its teaching (Korthagen & Kessels 1999).

This study focused on these two variables (attitude and self-efficacy towards mathematics and teaching mathematics) since are the major descriptors of the affective domain in mathematics education. For example, attitudes of the individual are directly related to liking mathematics, to mathematics anxiety, to getting pleasure from it, to valuing it, and being involved with mathematics (Duatepe & Çilesiz 1999). In other words, they pre-determine the performance of the pre-service teachers to the mathematics knowledge and the teaching skills they have after graduation.

Attitude towards Mathematics and Mathematics Teaching

In the general sense, the term is attitude is defined as an affective state of readiness or the inclination of individuals which is observed in a form where individuals accept or refuse a certain person, group, institution, or thought (Özgüven 1999). Particularly, in mathematics education, attitude can be considered as a tendency to engage in or avoid mathematical activities, a belief that one is good or bad in mathematics, and a belief that mathematics is useful or useless (Mullis, Martin, Foy & Arora 2012).

Attitude can consist of two components: attitudes towards mathematics and attitude towards teaching mathematics. Attitude towards mathematics includes liking, enjoyment, and interest in mathematics or on the contrary, maths phobia. There is also the teacher’s confidence in his or her mathematical abilities: the teacher’s mathematical self-concept and the teacher’s valuing of mathematics. While attitude towards teaching mathematics is the teacher’s attitudes to the teaching of mathematics. These include liking, enjoyment, and enthusiasm for teaching mathematics and confidence in the teacher’s mathematics teaching ability or their opposites (Ernest 1989).

Positive attitudes facilitate learning and teaching and increase success; on the other hand, negative attitudes reduce success. Positive attitudes that pre-service teachers develop towards mathematics and teaching mathematics during teacher preparation programs have an important role in creating a permanent change in students’ behaviour. Many believe that in order to teach mathematics well, one needs to have a positive attitude toward the subject and its teaching. The stage at which pre-service teachers begin the task of improving these attitudes are in the teacher education institutions (Semerci & Semerci 2004). Thus, the teacher education program is become relevant when it can help the pre-service teachers to develop a positive attitude towards mathematics and teaching mathematics. Otherwise, it hinders their future professional career.

To conclude, the teacher preparation program should have an impact on the development of pre-service teacher’s attitudes to mathematics and its teaching since both have a powerful impact on the atmosphere and ethos of the mathematics classroom. When pre-service teachers develop a positive attitude, the education program becomes relevant for them to develop knowledge and teaching skills necessarily required for their future teaching career.

Self-efficacy towards Mathematics and Mathematics Teaching

Self-efficacy is a teacher’s belief in his or her ability to complete the steps required to accomplish a particular teaching task in a given context (Zimmerman 2000). Mathematics self-efficacy is one’s conviction or confidence in their abilities to solve problems in mathematics whereas mathematics teaching self-efficacy is the belief or perception of an individual in their abilities to teach mathematics successfully (Kahle 2008).

Teachers’ teaching self-efficacy has been found as an important ingredient for teachers to be effective and strongly influences their instructional effectiveness as well as students’ sense of efficacious capabilities and outcomes (Tschannen-Moran & Hoy 2001). Teacher self-efficacy can be linked to numerous important teacher outcomes. Greater self-efficacy has been associated with teachers expressed professional commitment for both pre-services (Evans & Tribble 1986) and in-service teachers (Coladarci 1992). Again, teachers who have higher self-efficacy would once again choose teaching as a career if given the choice and more likely to stay in teaching once they have entered the field (Burley, Hall, Villeme & Brockmeier 1991). One of the routes that affect teacher’s self-efficacy is the formal teacher education program in the college of teacher education (Zeichner & Gore 1990).

Therefore, it is during the pre-service years of teaching that self-efficacy is most malleable. So, it is important to provide basic opportunities and experiences to aid self-efficacy development during this period. Thus, in the case where students develop strong self-efficacy towards mathematics and its teaching, the education system becomes relevant for them to develop knowledge and teaching skills.

Statement of the problem

Teachers are major parts of teaching-learning activities. To be successful in these activities, the teacher’s proficiency level should be high. Proficiency is the status of having professional knowledge, skill, and values to exhibit the professional disposition the profession requires. The teacher’s values are necessary knowledge, skill, and disposition for performing the teaching profession effectively (Tepe & Demir 2012). However, the knowledge and skills of teachers do not matter in the teaching profession if the necessary disposition development (like attitude and self-efficacy) is not quite strong and it is unthinkable that these teachers can be successful in their job (Ilhan & Cicek 2017). Thus, to be successful in the teaching profession, teacher’s attitudes and self-efficacy should be high and positive. If these are not strong, teachers can’t show the required performance in the profession even if they want.

In Ethiopia, various studies unfold results like the weak performance of mathematics teachers on knowledge of mathematics teaching-learning methods and weak mathematical knowledge that are essential to implementing fruitful changes in the classroom learning culture (Birhanu 2010; Yohannes 2007). Particularly Fekede and Tynjala (2015) and Demeke (2014) revealed that the motivation of teachers in performing their tasks and work is highly affected. Many mathematics teachers are de-motivated and unsatisfied in performing their work properly and they are ready to leave the profession.

Even though the curriculum of the pre-service primary teacher education program reformed and restructured in 2013, studies at the national level by the Ethiopian Ministry of Education (MoE) and other studies indicated that the questions of quality education were continued in terms of development of attitude and self-efficacy, professional competency of teachers and professionalism in the teacher education program. Furthermore, MoE (2016) confirmed that the poor capacity of the teacher education institutions and their teacher training programs are unable to produce competent teachers and/or produce a low quality of graduates.

Thus, it is vital to conduct research to know the relevance of the ongoing teacher education program for the development of the required professional dispositions. It is one of the indicators of the extent of the quality of the program for producing proficient teachers.

Research questions

The general objective of this study was to examine the professional disposition (attitude and self-efficacy) pre-service teachers hold at the end of the teacher education programs in terms of gender and modality. Thus, this study tried to answer the following research questions:

– Do the pre-service teacher’s attitude and self-efficacy towards mathematics and teaching mathematics show significant development in terms of gender and modality at the end of the program?

– What is the effect of modalities on the development of the pre-service mathematics teacher’s attitude and self-efficacy towards mathematics and teaching mathematics?

Research Method and Design

This study was quantitative non-experimental research that examines the effect of Ethiopian pre-service teacher education program on the development of professional dispositions like attitude and self-efficacy. It was also a survey study. To examine this development of pre-service mathematics teachers, the study used a primary source of data for the collection of data. The surveyees were 3rd-year mathematics pre-service teachers who have graduated in the 2018/19 academic year. To collect these primary data, the study used self-reported questionnaires.

Sampling and Sampling technique

This study was conducted in three colleges of teacher education located in Addis Ababa city and Southern Nations, Nationalist and People’s Region (SNNPR). These were: Kotebe Metropolitan University from Addis Ababa city (AA), Hawassa College of teacher education, and Arba Minch college of teacher education from SNNPR. It did not include Colleges of Teacher Education (CTEs) in other regions of the country since they used their local language as a medium of instruction fully or partially. Thus, the regions were selected purposively. This is because (1) English is served as a medium of instruction and (2) the same curricula materials are used. From SNNPR, Hawassa, Arba Minch, and Hossana CTEs were selected randomly and Kotebe metropolitan university was taken from Addis Ababa city as it is the only CTE that trains teachers in Addis Ababa. However, Hossana college of teacher education from SNNPR was used as a site for piloting the data gathering instruments.

In Ethiopia, three teacher training modalities were actively run-in colleges of teacher education. All CTEs have a generalist modality. However, depending on the situations and their demanding need, regions add either specialist or linear modality in their program.

In general, the population of this study was all third-year pre-service mathematics teachers in the sampled colleges of teacher education that have graduated in generalist modality (teaches grade 1 – 4), specialist modality (teaches grade 5 – 6), and linear modality (teaches grade 5 – 8) modality. This is because the graduate students are expected to know the program very well and already developed some knowledge and skills as a result of the teacher education program.

In these sampled CTEs, there are about 711 regular pre-service school mathematics trainee teachers that have graduated in the 2018/19 academic year. However, among these third-year pre-service teachers in all modalities, 536 (309 male and 227 female) pre-service mathematics teachers from the three institutions participated in the study.

Table 1. Number of graduate pre-service mathematics teachers in 2011 E.C (2018/19) in the three CTEs

CTEsModality/programPre-service teachersMaleFemaleTotalKotebeGeneralist20929Specialist6371134LinearHawassaGeneralist11796213Specialist--Linear53760Arba MinchGeneralist119100219SpecialistLinear391756Total411300711

Source: Education Statistics Annual Abstract, Ministry of Education, 2017and CTE’s registrar

Data Collection Instruments

First instruments were developed and/or adapted through a thorough review of the literature and then reviewed and edited by educational experts. Then, they were piloted and analysed. After the necessary modification, the last best items were administered for data collection.

In order to administer the finalized instruments, first appointments were arranged when and how the researchers met the participants just by making communication with their respective department heads. During the administration period, proper orientations were given to all participants like the purposes of the instruments and how they respond to each item. When the questionnaires were administered, no time limit was set so that students can do all items at their own pace.

For the positive sense questions a value 5=strongly agree, 4=agree, 3=undecided, 2=Disagree, 1=strongly disagree. For the negative sense questions, the values were assigned in the opposite sense. That is, the scoring scale is reversed and reconsidered as 1=strongly agree, 2= Agree, 3=undecided, 4=Disagree, 5=Strongly disagree. Then One-Way ANOVA procedure was carried out to analyse the difference of pre-service teachers’ attitudes and self-efficacy towards mathematics and teaching mathematics in terms of their gender and program type.

Self-reported Questionnaires: These self-reported questionnaires were developed to determine pre-service teacher’s attitudes and self-efficacy to mathematics and mathematics teaching.

To measure the attitude towards mathematics and mathematics teaching, the attitude scale which was developed by the Fennema-Sherman (Fennema & Sherman, 1976), and the parallel scales for attitude towards teaching mathematics were used with some modification. The instrument of attitude scale was a composite of six sub-categories: usefulness (value), enjoyment, motivation, anxiety, and success and recognition in mathematics teaching.

The items in the questionnaires asked pre-service mathematics teachers to indicate their degree of agreement with each statement in the Likert scale, from strongly disagree to strongly agree for attitude towards mathematics and teaching mathematics. For the positive sense questions, a value of 5 was assigned to “strongly agree”, decreasing values of 4, 3, 2, 1 was given to the other scale, where “strongly disagree was assigned the value 1. For the negative sense questions, the values were assigned in the opposite sense.

Similarly, to assess primary school pre-service teacher’s self-efficacy towards mathematics, items were directly adapted from Han, Liou-Mark, Yu, and Zeng, (2015), with little modification. The instrument was again based on a 5-point scale with 1 indicating strongly disagree and 5 indicating strongly agree. Likewise, to measure the Mathematics Teaching Self-Efficacy (MTSE) of pre-service teachers, a Likert scale was prepared which was adapted from the study conducted by Kahle, (2008) and Gavora, (2010). The MTSE questionnaire is based on a 5- point scale. Similarly, the respondents were asked to indicate their level of confidence from ‘strongly disagree’ to ‘strongly agree’.

Piloting the Instruments

To check the reliability and to discover the difficulties in understanding the words and elimination of ambiguities, piloting was done before using the original version for final administration. The original version of the questionnaires comprised of 24 items to assess attitudes toward mathematics, 32 items to measure attitude towards teaching mathematics, 16 items of self-efficacy towards mathematics, 22 items for self-efficacy towards teaching mathematics. Some of the items in the questionnaires were prepared pairwise; a positive and negative sense. Then they were piloted at Hosanna college of teacher education with a sample of 61 pre-service mathematics teachers. Then these were analysed to see the value of Cronbach alpha.

Table 2. Summary of the alpha value of the initial data under each variable and number of items before and after deletion

VariablesNum-ber ofitemsinitiallyInitialAlphavalueNumberof itemsafterdeletionAlpha valueafter dele-tionAttitude towards Mathematics240.606150.711Attitude towards teaching mathematics320.549180.807Self-efcacy towards mathematics160.592100.885Self-efcacy towards teaching mathe-matics200.632120.859

Initially, there was an unacceptable value of alpha for all variables. Thus, without compromising the content validity of the instruments, listwise an item deletion process was performed to increase the value of alpha. When an item was deleted either its positive sense or negative sense remained in the instrument. Consequently, as displayed in the table-2, 15 items (10 positive and 5 negative items) for attitude towards mathematics, 18 items for teaching mathematics attitude (8 positive and 10 negative), 10 items (4 positive and 6 negative items) for mathematics self-efficacy, and 12 items (5 positive and 7 negative items) for teaching mathematics self-efficacy were chosen that made the instrument to more manageable without compromising its validity. In addition, their alpha values reached a value of 0.711 for mathematics attitude and 0.807 for teaching mathematics attitude, 0.885 for self-efficacy towards mathematics, 0.859 for self-efficacy towards teaching mathematics, which is good for the reliability of a questionnaire (Field, 2009).

These good reliability coefficients infer that the instruments have high internal consistency reliability that can be administered. In addition, the instruments were also checked for language uses and their readability by the researcher himself and other colleagues in the department of science and mathematics education. The tools were finally administered to a total of 536 pre-service mathematics teachers, of which 309 were males and 227 were females. Again, of these, 351 were generalist, 95 were specialist, and 90 were linear.

Result and Discussion

This part answered the research question to what extent the pre-service mathematics teachers develop attitude and self-efficacy towards mathematic and teaching mathematics as a result of teacher education programs. It presents the effect of a teacher education program on the professional disposition of pre-service teachers and how was their disposition being varied across the three modalities and gender. It includes attitude and self-efficacy towards the subject (mathematics) and towards teaching the subject (teaching mathematics). These are important variables and considered to have a very crucial effect and predictor on the performance of their future career (Farooq & Shah, 2008; Majeed, Darmawan & Lynch, 2013).

In this respect, descriptive statistics have been calculated to see the mean variation on attitudes and self-efficacy development of pre-service teachers.

Attitude

Based on the respondent’s score for attitude towards mathematics and teaching mathematics in the three modalities, the following table presents the descriptive statistics analysis of the data.

Table 3. Means and standard deviations of mathematics and mathematics teaching attitude of pre-service mathematics teachers

VariablesNMinimumMaximumMeanSDSkewnessGeneralistAttitude towards mathematics3511.005.003.840.65-0.370Attitude towards teaching mathematics3511.005.003.490.56-0.206SpecialistAttitude towards mathematics951.735.004.230.52-1.498Attitude towards teaching mathematics952.285.003.890.69-1.206LinearAttitude towards mathematics901.674.603.870.55-1.806Attitude towards teaching mathematics902.614.943.910.63-1.22

Table-3 reveals the mean score for attitude towards the mathematics of the pre-service teachers who trained in generalist modality to be 3.84 out of a total score of 5. Whereas their mean score for attitude towards teaching mathematics to be 3.69. Similarly, the mean score of attitudes towards mathematics and teaching mathematics found being 4.23 and 3.89 for specialists and 3.87 and 3.91 for linear modality respectively.

Based on the descriptive analysis, it can be concluded that the pre-service teachers’ attitude towards mathematics, towards teaching mathematics, is moderately positive in all of the programs. This result showed that there were no significant differences in subject streams or programs. The table-3 also showed that in all the cases, the skewness of the variables was in the range of -2 and 2. Thus the variables are at least approximately normal.

Table 4. Test of Homogeneity of Variances of and data independence of attitude in the three modalities across gender

VariablesMean scoreLevene‘s Testfor Equality ofVariancesTest of independ-ence using Fisherexact testMaleFemaleFSig.Val-uepGeneralistAttitude towards Mathematics3.6993.930.0180.8954.3420.360Attitude to Mathematics teaching3.453.524.0030.0464.5140.324SpecialistAttitude towards Mathematics4.324.149.7450.0025.5010.055Attitude to mathematics teaching3.873.99.0530.8194.6500.063LinearAttitude towards Mathematics3.863.912.7920.0981.0860.896Attitude to Mathematics teaching3.883.951.0240.3143.4340.169

The table-4 above and the t-test result showed that the assumption of equal variances (first line of t-test results) holds for attitude towards mathematics scale in generalist (p = 0.895), and for linear (p = 0.098). However, attitude towards mathematics in the case of specialists (p < 0.05) did not meet the assumption of equal variances. Similarly, the assumption of equal variances holds for attitude towards teaching mathematics scale in specialist (p = 0.819) and linear (p = 0.314) except generalist (p < 0.05).

Based on the output in table-28 the value of Levene statistics was lower showing that a higher degree of homogeneity. Also, to check data independence, Fisher’s Exact test was applied so that the result indicated that there is at the 5% significance level, Fisher’s exact test finds no evidence of an association between male and female attitude in all of the modalities.

In the case where the Levene test for homogeneity is violated, the equivalent non-parametric test analysis like the Mann Whitney U test can be used. In addition, various literature suggested that if the sample sizes are quite different, then take the ratio of the standard deviations in the two groups and round it to the nearest whole number. If this rounded number is 1, don’t worry about the lack of homogeneity of variance. Based on this assumption, the sample size is different and the ratio of their standard deviation for attitude scale for specialist students was 0.6 and the nearest whole number is one. Similarly, since the sample size of the two groups is different for generalist attitude towards teaching mathematics and the ratio of their standard deviation was 0.9 and its nearest whole number is 1. The following table presents the homogeneity of generalist attitude towards teaching mathematics and specialist attitude towards mathematics.

Table 5. Mann-Whitney U test for homogeneity of generalist attitude towards teaching mathematics and specialist attitude towards mathematics

VariablesSexNMeanRankSum ofRanksMann-Whit-ney UAsymp.Sig.(2-tailed)Generalist attitudetowards teachingmathematics (N=351)Male193173.64773351414793.00000.631Female158178.873428262Specialist attitudetowards Mathematics(N=95)Male4850.862441.50990.5000.305Female4745.072118.50

Table-5 above provides the Mann-Whitney U, and the Sig. (significance) level or p. The mean ranks of the genders did not differ significantly on generalist attitude towards teaching mathematics (p = .631) and specialist attitude towards mathematics (p = .305). In general, from table-4 and table-5 the date satisfied the assumption of homogeneity.

Table 6. Results of independent group t-test performed to determine whether attitude towards mathematics and teaching mathematics scores differ or not in terms of gender

VariableGenderNMeanSDTdfpOverallAttitude towardsmathematicsMale3093.93880.6658-0.4175340.677Female2273.96260.63784Attitude towardsteaching mathemat-icsMale3093.82580.64849-1.5935340.112Female2273.91340.60097GeneralistAttitude towardsmathematicsMale1933.6990.63-0.6093490.031Female1583.930.67Attitude towardsteachingmathematicsMale1933.450.54-0.9173490.360Female1583.520.597SpecialistAttitude towardsmathematicsMale484.320.381.677930.097Female474.140.63Attitude towardsteachingmathematicsMale483.870.71-2.186930.543Female473.990.65LinearAttitude towardsmathematicsMale683.860.61-0.347880.730Female223.910.35Attitude towardsteachingmathematicsMale683.880.681.699880.093Female223.950.57

In case of generalist modality, the findings t (349) = -0.609, p <0.05, indicated that there was a significant difference in attitudinal development of pre-service mathematics teachers towards mathematics between male (M = 3.699, SD = 0.63) and female (M = 3.93, SD= 0.67). Furtherly, the finding table-6 above showed that there was no significant difference between males and females in attitude towards mathematics in specialist (t (93) =1.677, p = 0.097) and in linear (t (88) =-0.347, p = 0.730) program. The overall result shows also that there is no significant difference between males and females in attitude towards mathematics (p = 0.677) and teaching mathematics (p = 0.112).

Therefore, in general speaking, the attitude of pre-service mathematics teachers at the end of the program was not associated with gender. In addition, females compared to males were found to display a consistently more positive attitude.

Similarly, as regard attitude towards teaching mathematics development, the findings in table-6 (t (349) = -0.917, p = 0.360), indicated that, there was no a significant difference between male (M = 3.45, SD = 0.54) and female (M = 3.52, SD = 0.597) in generalist program. The same results were also shown for attitude towards mathematics teaching in specialists (t (93) =-2.186, p = 0.543) and linear (t (88) =1.699, p = 0.93) program. Thus, there is no significant difference in attitude towards teaching mathematics in generalists, specialists, and linear by gender. Again, females compared to males were found to display a consistently more positive attitude towards teaching mathematics.

Table 7. Comparison of attitude towards mathematics and its teaching across modalities

VariablesModalityMeanSDMeansquareFPetasquareAttitudetowardsmathematicsGeneralist (N=351)3.840.654.49710.9160.0000.04Specialist(N=95)4.230.52Linear (N=90)3.870.55AttitudetowardsmathematicsteachingGeneralist (N=351)3.490.561.7554.4840.0120.02Specialist(N=95)3.890.69Linear (N=90)3.910.63

We can see that from table-7 the significance value is less than 0.05 for both variables and therefore, there is a statistically significant mean difference in the development of attitude towards mathematics and teaching mathematics scale among the three modalities. Moreover, specialists (M=4.227) and linear (M=3.87) students have developed a relatively higher attitude towards mathematics than generalist (M=3.815) pre-service teachers. The same result also was reported across the three modalities developed an attitude towards teaching mathematics.

Moreover, Eta-squared is commonly used in ANOVA and t-test designs as an index of the proportion of variance attributed to one or more effects. Eta-squared quantities the percentage of variance in the dependent variable (Y) that is explained by one or more independent variables (X). It is also the measure of effect size. In this case, the dependent was the attitude scale and the independent were the two modalities. According to Cohen (1988), 0.01 is a small effect, 0.05 is a medium effect and 0.14 is a large effect. It is calculated as the sum of squares between groups divided by the totals sum of the square. Finally, the results in a table-7 presented that the eta square of attitude towards mathematics and teaching mathematics of pre-service mathematics teachers due to modalities were 0.04 (3.9%) and 0.02 (2%). According to Cohen (1988), these values showed that effect size was medium.

Self-efficacy

To answer the research question related to self-efficacy, the participants were administered a questionnaire on the mathematics self-efficacy scale, and their responses were analysed using descriptive statistics. The results of the analysis are presented in the following tables.

From table-8 below, it can be seen that the mean responses of individual items are all above the value 3.0. This indicates that the majority of the participants have a high level of confidence towards mathematics and teaching mathematics on each item under the three modalities.

Table 8. Means and standard deviations of mathematics self-efficacy of pre-service mathematics teachers under three modalities

VariablesNMinimumMaximumMeanSDSkewnessGeneralistSelf-efcacy towardsmathematics3511.25.003.960.67-1.245Self-efcacy towards teachingmathematics3511.005.003.590.73-0.084SpecialistSelf-efcacy towardsmathematics951.35.003.990.63-1.253Self-efcacy towards teachingmathematics951.005.003.820.79-1.150LinearSelf-efcacy towards mathemat-ics902.35.004.220.52-1.13Self-efcacy towards teachingmathematics902.255.003.930.67-1.22

Table-8 shows that the mean score of the pre-service mathematics teachers in self-efficacy towards mathematics and teaching mathematics 3.96 and 3.59 for generalist respectively; 3.99 and 3.82 for specialist respectively and 4.22 and 3.93 for linear respectively. Based on this descriptive analysis, it can be concluded that the pre-service teachers’ self-efficacy towards mathematics and teaching mathematics is highly positive in all of the three modalities.

Table 9. Test of Homogeneity of Variances and data independence of attitude in the three modalities across gender

ModalityVariablesLevene‘s Testfor Equalityof VariancesTest of inde-pendence usingFisher’s exact TestMaleFemaleFSig.ValuespGeneralistSelf-efcacy towardsMathematics3.943.982.8720.0911.6590.819Self-efcacy to Math-ematics teaching3.613.560.0330.8553.8480.419SpecialistSelf-efcacy towardsMathematics3.974.000.4710.4942.3470.856Self-efcacy to Math-ematics teaching3.893.760.2630.6092.5790.712LinearSelf-efcacy towardsMaths4.274.090.0650.7992.2630.559Self-efcacy to Math-ematics teaching3.903.960.9210.3400.8980.847

The homogeneity table-9 above shows that the assumption of equal variances (first line of t-test results) holds for self-efficacy towards mathematics and teaching mathematics in all of the modalities, i.e., generalist (p = 0.091 and p = 0.855), for specialist (p = 0.494 and p =0.609) and for linear (p = 0.799 and p = 0.340). In addition, based on the output in table-9, the value of Levene statistics was lower showing that a higher degree of homogeneity. Furthermore, Fisher’s Exact test result shows that at the 5% significance level, no evidence of an association was found between male and female attitudes (p>0.05). Thus, the collected data were assumed to independent in terms of gender.

Table 10. Results of independent group t-test performed to determine whether attitude towards mathematics and teaching mathematics scores differ or not in terms of gender

VariableGenderNMeanSDtdfpOverallSelf-efcacy towardsmathematicsMale3094.020.660.455340.653Female2273.990.62Self-efcacy towardsteaching mathematicsMale3093.890.721.2595340.209Female2273.810.71
GeneralistSelf-efcacy towardsmathematicsMale1933.940.70-0.4973490.620Female1583.980.62Self-efcacy towardsteaching mathematicsMale1933.610.75-0.9123490.362Female1583.560.68SpecialistSelf-efcacy towardsmathematicsMale483.970.58-0.208930.836Female474.000.69Self-efcacy towardsteaching mathematicsMale483.890.750.781930.437Female473.760.83LinearSelf-efcacy towardsmathematicsMale684.270.531.406880.163Female224.090.48Self-efcacy towardsteaching mathematicsMale683.900.680.271880.787Female223.960.67

The findings in table-10 above indicated that there was no significant difference in self-efficacy of pre-service mathematics teachers towards mathematics and teaching mathematics between males and females in the three modalities.

Therefore, the hypothesis that there is no significant difference in self-efficacy towards mathematics and teaching mathematics by gender is accepted.

Table 11. Comparison of self-efficacy towards mathematics and its teaching across modalities

VariablesModalityMeanSDMeansquareFpEta2Self-efcacy towardsmathematicsGeneralist3.9590.6652.5096.1670.0020.03Specialist3.9860.632Linear4.2220.524Self-efcacy towardsteaching mathemat-icsGeneralist3.5940.7274.0318.1490.0000.03Specialist3.8230.788Linear3.9270.673

One-way between-groups analysis of variance was conducted to explore the impact of modalities on the development of self-efficacy towards mathematics and teaching mathematics as indicated in table-11. There was a statistically significant difference at the p < .05 level in self-efficacy towards mathematics and teaching mathematics for three modalities groups (F (2,536) = 6.16, p < 0.05) and F (2, 536) = 8.149, p < 0.05) respectively. Despite this statistical significance, the actual difference in mean scores between groups was quite small. The effect size, calculated using eta squared, was .03. Therefore, results in table-11 showed that the eta square of self-efficacy towards mathematics and teaching mathematics of pre-service mathematics teachers due to modalities were 0.03 and 0.03. According to Cohen (1988), these values showed that effect size was medium.

Discussion

It is thought that attitudes towards mathematics have a long background for mathematics education than other educational fields. In addition, students’ success in mathematics highly depends upon the attitude they have towards mathematics. So, it plays a crucial role in the teaching and learning processes of mathematics. For example, students who have shown a positive attitude towards the subject tend to perform well (Alpacion, Camanan, Gregorio, Panlaan, & Tudy, 2014). In the last two decayed, researchers indicated that pre-service teachers with positive attitudes towards mathematics would be more successful than individuals with a negative attitude (Memnun & Akkaya, 2012). There is also a strong belief among pre-service teacher educators that positive attitudes need to be fostered for prospective primary school teachers (Relich, Way & Martin 1994).

In this study, the majority of pre-service mathematics teachers have shown a positive attitude towards mathematics and teaching mathematics at the end of the teacher education program which is similar to the conclusion of the findings of the study conducted by Relich, Way, and Martin in 1994. In addition, Hill and Bilgin, (2018) indicated that in their final year pre-service teachers had a somewhat positive attitude toward mathematics. This result also strengthens the findings of Relich, Way, and Martin (1994) and it revealed that the pre-service teachers’ attitude towards teaching mathematics improved as they progressed through the programs. Many other studies also presented the same conclusions about the attitude of pre-service mathematics teachers towards mathematics and teaching mathematics (Awofala 2016; Tabuk 2018).

In this study also, no gender difference was not observed in attitude towards mathematics and teaching mathematics. Again, this result is aligned with the findings of other previous authors like Karjanto, (2017), Mata, Monteiro, and Peixoto, (2012), Awofala, (2016) and Tabuk, (2018). They found that there were no statistically significant results between males and females in attitudes toward mathematics and teaching mathematics.

The second variable is self-efficacy, teacher’s self-efficacy is the confidence the teacher has in his/her capability to perform tasks in mathematics. It goes beyond just having professional knowledge and skills. Thus, having a high level of self-efficacy about one’s ability is important as it motivates one to succeed in life. In this regard, Gavora (2010) pointed out that the teacher’s high self-efficacy enables him/her to use his professional knowledge and skills successfully. In other words, low mathematics self-efficacy may inhibit the use of professional knowledge and skills and which may affect students’ learning negatively. Researchers also found that at the end of teacher education, pre-service teachers were improved and had above-average levels in both Mathematics Self-efficacy and Mathematics Teaching Self-efficacy (Charalambous & Philippou, 2003; Gavora, 2010; Zuya, Kwalat & Attah, 2016; Giles, Byrd & Bendolph, 2016; Unlu & Ertekin, 2013) which supported the findings of this study.

Moreover, one of the possible factors shaping self-efficacy towards mathematics and teaching mathematics is gender (Han, Liou-Mark, Yu & Zeng 2015). In this regard, so far conflicting findings were released in the last one decay, some study findings do not show any significant variation between male and female self-efficacy at the end of the teacher education program (Uzuntiryaki & Aydin, 2008; Al-Alwan, & Mahasneh 2014) while others conclude that self-efficacy has a significant association with gender (Dursun 2010). As many of the findings, in this study, no significant difference was not detected in the self-efficacy of pre-service mathematics teachers towards mathematics and teaching mathematics between males and females regardless of the study program.

Various researches also were conducted showing the relationship between mathematics knowledge, attitude, and self-efficacy. Some studies showed a strong association between teacher’s mathematical knowledge, attitude, and self-efficacy towards mathematics and teaching mathematics. For example, Swackhamer, Koellner, Basile, and Kimbrough, (2009) found that the number of mathematics courses taken by teachers as part of a professional development project was positively associated with the teachers’ self-efficacy. Morrell and Carroll, (2003) investigated the contributions of the different types of coursework to the development of pre-service teachers’ self-efficacy. They found statistically significant increases in teaching efficacy for all methods courses. Similarly, Gencturk, (2015) indicated that the gains in teachers’ mathematical knowledge predicted changes in the quality of their lesson design, mathematical agenda, and classroom climate. Teachers’ attitudes were related to the quality of their lesson design, mathematical agenda, and the quality of the tasks chosen. In general, Wilkins and Ma, (2003) said that:

A person’s mathematical disposition related to her or his beliefs about and attitude towards mathematics may be as important as content knowledge for making informed decisions in terms of willingness to use this knowledge in everyday life. (p. 52)”

In summary, as Stipek, Givvin, Salmon and MacGyvers, (2001) explained, teacher confidence is important not only potential to replicate positive or negative affect in students but also because teacher confidence has been linked to the quality of pedagogy.

Conclusion

The findings show that the ongoing teacher education program helps pre-service mathematics teachers to have a strong attitude towards mathematics and teaching. It also indicates that the program influences majority of males and females to develop a strong attitude towards mathematics and teaching mathematics without gender difference especially in specialist and linear programs. However, variations were observed in the development of these attitudes across modalities. Specialist and linear programs made the pre-service mathematics teachers have a stronger attitude than generalist pre-service mathematics teachers at the end of the program.

Again, the result of pre-service mathematics teacher’s scores on self-efficacy towards mathematics and teaching mathematics indicate that they have strong self-efficacy at the end of the program in all of the three modalities without gender difference. It shows that the teacher education program has a positive impact on the development of their confidence in mathematics and teaching mathematics. However, there is variation in the mean score of self-efficacy development of pre-service mathematics teachers across the three modalities.

Thus, from the findings of this study, it can be concluded that the teacher education program in Ethiopia helped pre-service mathematics teachers to have a positive attitude and self-efficacy at the end of 3 rd year.

Overall, the above results of attitude and self-efficacy would answer the research questions designed in the study. That is: “Does the pre-service teacher’s attitude and self-efficacy towards mathematics and teaching mathematics show significant development in terms of gender and modality?”.

Recommendation

Pre-service mathematics showed either agree or strongly agree in attitude and self-efficacy in the three modalities regardless of program type and gender. Therefore firstly, nationwide research should be conducted qualitatively to identify which part of a teacher education program or factors that have a high impact on the development of pre-service mathematics teacher’s positive or negative attitude and self-efficacy so that colleges of teacher education will share the good practices which help them to develop student’s positive behavior.

Limitation

The respondents of this study were pre-service mathematics teachers in the three sampled CTEs. Thus 536 participated in the study out of 711. The population was considered to be 536. Hence the sample does not enable to make generalizations but it may show some trends to be studied in a larger sample in the future.

In general, this study is a snapshot with limited data and participation in the three sampled colleges. Therefore, conducting further detailed (explore with further qualitative) studies with similar samples in Ethiopia would provide more explicit findings for pre-service mathematics teacher’s professional disposition development.

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Elena Grebenakova, Stojan Manolev

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CHEMISTRY: BULGARIAN JOURNAL OF SCIENCE EDUCATION ANNUAL CONTENTS / VOLUME 29, 2020 ПРИРОДНИТЕ НАУКИ В ОБРАЗОВАНИЕТО ГОДИШНО СЪДЪРЖАНИЕ / ГОДИНА XXIX, 2020

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JACOB’S LADDER FOR THE PHYSICS CLASSROOM

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

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

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

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Lyubomir Lazov, Hristina Deneva, Galina Gencheva

ФИЗИКОХИМИЧНАТА ШКОЛА НА РОСТИСЛАВ КАИШЕВ В ПЕРИОДА 1950 – 1957 (СПОМЕНИ НА ЕДИН СВИДЕТЕЛ)

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2019 година
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Hristina Deneva, Lyubomir Lazov, Edmunds Teirumnieks

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Maria Atanassova, Radoslav Angelov, Dessislava Gerginova, Alexander Zahariev

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Б. В. Тошев

CHEMISTRY: BULGARIAN JOURNAL OF SCIENCE EDUCATION ANNUAL CONTENTS / VOLUME 28, 2019 ХИМИЯ. ПРИРОДНИТЕ НАУКИ В ОБРАЗОВАНИЕТО ГОДИШНО СЪДЪРЖАНИЕ / ГОДИНА XXVIII, 2019

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Jordan Tabov, Nevena Sabeva-Koleva, Georgi Gachev

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Nadya Kantareva-Baruh

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2019: ДВЕ ВАЖНИ СЪБИТИЯ

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Elena Karashtranova, Nikolay Karashtranov, Vladimir Vladimirov

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Elena Karashtranova, Nikolay Karashtranov, Nadezhda Borisova, Dafina Kostadinova

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2018 година
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ЗДРАВЕ И ОКОЛНА СРЕДА

Кадрие Шукри, Светлана Великова, Едис Мехмед

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

Rumen Georgiev, Tatyana Dzimbova, Atanas Chapkanov

X-RAY DIFFRACTION STUDY OF M Zn(TeО )

Kenzhebek T. Rustembekov, Mitko Stoev, Aitolkyn A. Toibek

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

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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

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CHEMISTRY: BULGARIAN JOURNAL OF SCIENCE EDUCATION ПРИРОДНИТЕ НАУКИ В ОБРАЗОВАНИЕТО VOLUME 27 / ГОДИНА XXVII, 2018 ГОДИШНО СЪДЪРЖАНИЕ СТРАНИЦИ / PAGES КНИЖКА 1 / NUMBER 1: 1 – 152 КНИЖКА 2 / NUMBER 2: 153 – 312 КНИЖКА 3 / NUMBER 3: 313 – 472 КНИЖКА 4 / NUMBER 4: 473 – 632 КНИЖКА 5 / NUMBER 5: 633 – 792 КНИЖКА 6 / NUMBER 6: 793 – 952 КНИЖКА 1 / NUMBER 1: 1 – 152 КНИЖКА 2 / NUMBER 2: 153 – 312 КНИЖКА

(South Africa), A. Ali, M. Bashir (Pakistan) 266 – 278: j-j Coupled Atomic Terms for Nonequivalent Electrons of (n-1)fx and nd1 Configurations and Correlation with L-S Terms / P. L. Meena (India) 760 – 770: Methyl, тhe Smallest Alkyl Group with Stunning Effects / S. Moulay 771 – 776: The Fourth State of Matter / R. Tsekov

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ELECTRICAL IMPEDANCE SPECTROSCOPY OF GRAPHENE-E7 LIQUID-CRYSTAL NANOCOMPOSITE

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

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Dragomir Gospodinov, Delko Zlatanski, Boyko Ranguelov, Alexander Kandilarov

RHEOLOGICAL PROPERTIES OF BATTER FOR GLUTEN FREE BREAD

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

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

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

H O O H H H C H 104.45° 108.9° H A B

Figure 1. A – Water; B – Methanol Indeed, the literature survey reveals a trove of reports on methylation of such molecules and the effects of thus-tethered methyl groups were illustrated (Barreiro et al., 2011). An astounding fact is the link between the methyl group in methylated DNA and the cancer development (Newberne & Rogers, 1986; Wajed et al., 2001); methylation of biological molecules contributes to the regulation of gene expression and protein function, and RNA proces

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PARAMETRIC INTERACTION OF OPTICAL PULSES IN NONLINEAR ISOTROPIC MEDIUM

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

ДЕЙСТВИЕ НА ГАМА-ЛЪЧИТЕ ВЪРХУ ДЕЗОКСИРИБОНУКЛЕИНОВАТА КИСЕЛИНА

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Natasha Ivanova, Bistra Manusheva

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NATURAL RADIONUCLIDES IN DRINKING WATER

Natasha Ivanova, Bistra Manusheva

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АДАПТИРАНЕ НА ОБРАЗОВАНИЕТО ДНЕС ЗА УТРЕШНИЯ ДЕН

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

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Vittorio Caprio, Andrew S. McLachlan, Oliver B. Sutcliffe, David C. Williamson, Ryan E. Mewis

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Sohaib Khalid, Johan Kok, Akbar Ali, Mohsin Bashir

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

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GUIDE FOR AUTHORS

Manuscripts submitted to this journal are considered if they have been submitted only to it, they have not been published already, nor are they under consideration for publication or in press elsewhere. Contributions to the Bulgarian Journal of Science Education must report original research and will be subjected to review by anonymous and independent referees at the discretion of the Editor(s). Manuscripts for consideration should be sent electronically to toshev@chem. uni-sofia.bg Elec

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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

В новите броеве на научните списания на издателство четете

4/2013: сп. „Философия“ Портфолио на преподавателя и студента по „Философия на oбразованието“ (за академич- ни цели) / Яна Рашева-Мерджанова „Философия на oбразованието“ има своите хилядолетни опити и резултати. Изследването на тази духовна вселена води до структура и до обособяването на активности, които са съответни, от една страна, на философскообразователното мислене и култура, а от друга страна – са въвеж- дащи в тяхното овладяване. За ролята на етиката в ученията на П. Рикьор и Е. Лев

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

Emil Lozanov

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

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