فریبرز درتاج

Purpose: The purpose of this study was to compare the effect of KWL educational strategy and conceptual mapping strategy on students' critical thinking. Methodology: This research was based on a quasi-experimental design with pre-test and post-test with two experimental groups and one control group. The statistical population consisted of all male students of the third grade high school of Miandoab in 2016-17. Three classes were selected through multistage cluster sampling. Two classes were randomly selected as experimental group and one class as control group. One of the experimental groups was taught in KWL and the other in a conceptual map. The control group was also trained in a conventional way. The pre-test and post-test data were used to collect data from the California Formation B Questionnaire. Findings: To analyze the data was used one-variable covariance analysis. The findings of the study showed that education through the Kwl strategy and conceptual mapping strategy is effective on critical thinking students (P <0.001). It was also determined that the effectiveness of KWL strategy on students' critical thinking was more than conceptual mapping strategy (p <0.001). Conclusion: Based on this study, both cognitive strategies and metacognitive strategies reinforce students' thinking. However, due to the findings of this research and related studies, it is better to use metacognitive strategies along with cognitive strategies because using metacognitive strategies, students monitor their learning process and become more aware of complex issues and points and they get more aware. Based on these findings and previous research, it is recommended that modern educational methods such as KWL and concept maps be used in teaching

Purpose: The aim of present study is investigation the role of family functioning and generation gap in the relationship between parental controls style and addiction to social networks. Methodology: The present study is a descriptive one. Theoretical bases of the study were collected by reputable sites, books and related articles. The information and data for hypothesis testing were gathered by standard and a researcher-made questionnaire. Statistical society was all of male and female student of the second year of high schools in district 5 of Tehran (140 persons). After data collection, data analysis was performed using SPSS and PLS. In this study, Validity and reliability of the questionnaire was approved. Validity of the questionnaire was accepted by expert opinion of university and reliability of that was calculated by Cronbach's alpha and the value of that was 0.82. Findings: Results showed that family functioning and generation gap have significant roles in the relationship between parental controls style and addiction to social networks. Discussion: Therefore, it can be concluded that by improving family functioning and reducing the generation gap, better control of addiction to social networks can be created.

Inventing and applying motivational, highly efficient, and engaging strategies for teaching elementary school students is a concern that has always occupied the minds of teachers and experts in this field. Meanwhile, using music as an easy and accessible, low-cost, and popular solution in creating and promoting creativity, self-confidence, motivation, and cognitive skills and students' self-directed learning has been considered an important and effective strategy. To this end, the present research investigated the music and melodic teaching impact on the math learning progress of the third-grade elementary school students in Tehran. The research adopted a quasi-experimental design with the experimental and control group. The statistical population included about 20,000 third-grade students in region 1 of Tehran that were selected as available sampling from two Rastar and Meysam Tamar schools, from which 30 students were randomly assigned to the experimental and control groups (15 in each group) as the study sample. Both groups learned the same and the specified concepts. However, the experimental group learned these concepts using music and melodic teaching while the control group learned these concepts using the lecture-based teaching method and the final math scores of the students were used in the analyses. As the instrument, a demographic information questionnaire, the mathematic motivation questionnaire, a progress test and an achievement test were used in this study. The results of covariance analysis showed that teaching math using music and melodic method has a significant positive impact on elementary school students’ math learning (70.8%) and more motivated learning (86%). Therefore, it can be concluded that by using melodic teaching in teaching math concepts can be more effective than traditional teaching methods.