روشن احمدی

This study aimed to investigate the effectiveness of the conceptual change model (CCM) on learning the basic concepts of Electrostatics. CCM is an active teaching method that puts the emphasis on children's preconception. The underlying principles of CCM are derived from constructivist theory. The growing body of research shows that students’ knowledge about Physics has formal aspects rather than being useful and usable. Students encounter problems in understanding of Physics concepts (such as static electricity), therefore their perception and understanding is often subject to misconception. So Electrostatics was considered as the subject of this study. The study population comprised of female junior high school students. Design used in this study was the quasi- experimental method of Solomon four-group design. The samples were selected conveniently and randomly assigned to two experimental and two control groups. Researcher-made tests of academic achievement, in three areas of knowledge, comprehension and application of concepts, were used as the data collection tool. Central and dispersion measures, the t-test and two-way analysis of variance were used to test the hypotheses. Research findings showed that CCM teaching methods are superior to the traditional way of teaching and learning physics concepts in detecting and correcting misconceptions.

The aim of the research was the effect of educational digital games on creativity, motivation and academic progress in the mathematics lesson of the first elementary school students. The research method is a semi-experimental type of pre-test-post-test with control group, And the statistical population included all the students of the first grade of elementary school in Islam-Shahr city. The sample size consisted of 72 people (36 people in the experimental group and 36 people in the control group) who were selected by the available method. The measurement tools included the Torrance Form A creativity test, the mathematical motivation questionnaire, and tests to measure knowledge, attitude and mathematical skills. The reliability of each tool was obtained as 0.80, 0.709, 0.82, 0.94 and 0.85 respectively. The experimental variable was implemented in three steps "group game", "exploration" and "individual game" in 12 sessions for the experimental group.Descriptive statistics and inferential statistics such as Kolmogorov-Smironov, Levin and Box test and multivariate covariance analysis were used for data analysis. The results showed; Education using digital educational games has been effective on creativity (fluidity component), mathematical motivation (desire, avoidance) and academic progress (knowledge, attitude and skill) of students. And there was a significant relationship between these variables; However, no significant difference was observed between the two experimental and control groups in the components of expansion, flexibility and innovation related to the variable of creativity.