درخت حوزه‌های تخصصی

Mathematical disorders, which are rooted in genetic factors and central nervous system dysfunction, can cause cognitive and psychological processing disorders. This study aims to determine the effectiveness of problem-solving training on executive functions and mental fatigue in female students. This study is a quasi-experimental design with a pre-test and post-test with a control group. The statistical population includes female students in the first year of high school in Miandoab city in the academic year 1401-02, from which 40 people were selected as a sample based on the available method and randomly assigned to two control and experimental groups. The research tool includes Coolidge's executive functions, 2002 version, differential or diagnostic tasks (Sedak and Kafta), and a problem-solving training protocol. SPSS 25 software was used to analyze the data. Results were shown that problem-solving training significantly affects executive functions (F=16.35, P< 0.00) and reduces cognitive fatigue (F= F=21.75, P< 0.00) in students. Therefore, problem-solving training as a strong capacity can reduce fatigue and increase executive functions.

The purpose of this research is to determine the effect of using new educational technologies (interactive PowerPoint) on the collaborative learning of sixth grade students. The present research is an applied research in terms of purpose and semi-experimental one in terms of data collection method. The selected research design is the pre-test-post-test design with a control group. The statistical population of this research (250) includes all the sixth grade students of Qazvin city, Lower Tarem region, in the academic year 2017-2018. Using simple random sampling method, 50 people (25 control group and 25 experimental group) were selected. The main data collection method is library research method. For data collect purpose, participatory and active learning questionnaire (Cho and Bavli, 2007) has been used. The data collection instrument is a package of using modern educational technologies (interactive PowerPoint). Content validity was checked to secure the validity of the research and Cronbach's alpha coefficient was used to determine the reliability of the instrument. The reliability of the questionnaire was found to be 0.85. In the descriptive statistics section, statistical characteristics such as frequency, percentage, mean, and standard deviation have been reported, and in the inferential statistics section, the KS test was employed to determine whether the variables are parametric or non-parametric. Also, one-variable covariance analysis was run using SPSS23 software. The results of the present study indicated that the use of new educational technologies (interactive PowerPoint) had a positive and significant effect on the group dynamics and project of the sixth grade elementary students. The findings of the present research also revealed that making use of use of new educational technologies (interactive PowerPoint) had a significant effect on the collaborative learning of students. It also indicated that the use of new educational technologies (interactive PowerPoint) had a significant effect on the dimensions of collaborative learning (group dynamics, doing work on the project, feedback) and students' feedback