The effect of the combined planning approach (central and group) on the level of social skills and academic progress in mathematics of students in multi-grade classes in Piranshahr city

This research was conducted with the aim of investigating the effect of the combined planning approach on the level of social skills and mathematical academic progress of students in multi-grade classes in Piranshahr city. The research method was quasi-experimental and pre-test-post-test design with two experimental groups and two control groups. Using multi-stage cluster sampling, two primary schools were randomly selected from two groups of multi-grade schools in Lajan and Central sectors and finally, from each primary school two class of the second period, where the sixth grade was located, was selected. Therefore, the research samples include four classes (60 people), namely two classes of the experimental group and two classes of the control group. To measure the growth rate of students' social skills, a questionnaire developed by Karamati (2013) was used, whose validity was confirmed by experts and reliability was estimated based on Cronbach's alpha coefficient of 0.89, was used. To measure academic progress from the test A teacher-made math lesson with 15 questions designed for the sixth grade was used. In order to analyze data, in addition to descriptive statistics methods, inferential statistics method (ANCOVA) was also used.