مجله پویش در آموزش علوم پایه
سال پنجم شماره 2 (پیاپی 15، تابستان 1398)

In the present study, we examine the students 'and students' knowledge of the concepts of chemical kinetics, atomic-molecular mass and solubility. In this study, 88 students of the 11th and 11th grade students of the second grade secondary school in 17th city of Tehran and 49 students of chemistry teachers at Shahid Beheshti faculty of Tehran participated. To do this research, descriptive-analytic and field research methods were used and two-way (two-way) tests known as CTD (CMDT) tests were used to collect information. The results of this study show that despite significant differences in students' understanding of science and students about the concepts of chemical kinetics, atomic mass and solubility, there is a serious incongruity between students and teachers because students were teachers, future teachers of this land. And they will be responsible for teaching these concepts. Therefore, if the student is taught by teachers, this misunderstanding will be passed on to their students in the future, and this will continue for a continuous cycle, also through interviews. With a number of students and college teachers, there are some causes of an overthrow in this Topics have been identified.

The research on teacher development has increased over the past two decades. Based on this, many studies have been done on the content knowledge (CK) and the pedagogical content knowledge (PCK) of different science teachers, but limited studies have been conducted on the content knowledge and pedagogical content knowledge of elementary schools science teachers; Especially the topic of photosynthesis. The purpose of this study was to investigate the effect of content knowledge on pedagogical content knowledge of photosynthesis and plant growth in a group of elementary education teachers students at Fatemeh Zahra Campus of Esfahan. The population of the study consisted of 25 students of educational sciences. A questionnaire, preparation of lesson plan and interview were used to collect data. The most student teachers at the end of the first semester and attending science education classes were not very knowledgeable about conceptual problems of students in the field of photosynthesis and they had difficulties to choose the most important concepts. While the same students in the second semester were more effective in understanding the conceptual problems of students, also, none of the students had much experience in teaching science.

The purpose of this study was to investigate the effect of Polya's problem-solving model on reducing the Newton's error in the 10th year students of mathematics in combining problem-solving problems, Tehran province. This research has been donesemi-experimental. The statistical population of this study is 100 students of the 10th year of mathematics in Marlich and Serasiab areas of Malard County in Tehran during the academic year 97-96. Of these 30 students, the sample is available as sample. To collect the data, two researcher-made tests for the two pre-test and post-test phases each included six questions from six different types of questions, in order to investigate the effect of using the Polya problem solving model on student Newman's error reduction. The Cronbach's alpha value was obtained to verify the reliability of 0.73 and CVR to verify the validity of the questions used between 0.8 to 1 To analyze the data, frequency, percentage, mean, variance, and also U test for inferential analysis were used. The results of these tests showed that the use of Polye problem solving model could reduce the errors in the stages of perception and transformation significantly, but significant changes Processing and encoding steps were not observed

The purpose of the present research is to study the beauty of the chassis (creativity and artistic spirit) in each of the triple cases of the image, text and exercises of the third elementary mathematical book. At first, we examined a few of the researches carried out to enrich the present research as well as We examined John Dewey's theory of aesthetics and then, considering the importance of research, we tried to answer the research questions. What was so surprising and important was the lack of attention to the aesthetic and art as a creative human stimulus Although there is a lot of emphasis in the documents, three chapters of the book are randomly (1-4-7) with 8 The component extracted from the transformation document is examined to identify the degree of compliance and coincide with the transformation document. The results show the meaningful gap of the analyzed book With the values and aspirations of the artistic realm outlined in the Transformation Document, which requires a change in the curriculum approach. And the maximum attention to this area is worthwhile.

The development of studies and research in the field of learning and educational strategies has made learning environments an alternative to learning environments. This paper presents a model for the development of learning based on reproductive learning. This model emphasizes the learner's active role in learning through the creation of relationships and meanings, and has the following steps:Analysis, component preparation, expression of its concept and context, or the presentation of the subject, the expression of preconditions, the production of meaning and relationships, the transfer of learning, evaluation, resources and information tools, facilitating and supporting, and ultimately production Knowledge as a profound understanding of the subject.Analysis, component preparation, expression of its concept and context, or the presentation of the subject, the expression of preconditions, the production of meaning and relationships, the transfer of learning, evaluation, resources and information tools, facilitating and supporting, and ultimately production Knowledge as a profound understanding of the subject.

The purpose of this study was to investigate the status of the components of Parsons Effectiveness (Adaptation, Goals, Job Satisfaction and Organizational Commitment) of Mathematics Classroom in Public Schools of District Two of Tehran. The statistical population of this study consisted of all sixth grade students of public elementary schools in district 2 of Tehran in the year 1397/98. The total number of them was 518 and 251 of them were selected according to Cochran's random sampling method. In this study, Parsons (2009) standard questionnaire of effectiveness was used to collect research data. The validity of the questionnaire was validated by professors and experts and its reliability was calculated using Cronbach's alpha of 0.83. The results showed that the overall status of the components of Parsons Effectiveness (Adaptation, Goals, Job Satisfaction, and Organizational Commitment) of the math classroom in Tehran's two elementary schools with averages of 2, 1.98, 1.97, and 02 There was a significant difference at the 0.01 level with the hypothetical mean of the sample. Therefore, it can be inferred that the level of Parsons effectiveness components (adaptation, achievement of goals, job satisfaction, and organizational commitment) of the mathematics classroom is rated "below average".