This study aimed to determine the effect of educational packages based on executive functions on students' working memory. This was a quasi-experimental pretest-posttest study with a control group. In this study, the statistical population was all fifth-grade male students of Shahreza city located in Iran in the academic year 2020-2021. A boys' primary school and 40 students were selected using the available sampling method randomly. Experiments and controls were replaced in two groups of 20 people. The experimental group underwent 10 sessions of training based on executive functions; The control group did not receive any intervention. The data collection process was performed in the pre-test and post-test stages with Daniman and Carpenter's (1980) working memory scale for all participants in two groups. The collected data were analyzed by the ANCOVA method. ANCOVA results showed that performance-based education increased the working memory of students in the experimental group compared to the control group in the post-test (P<0.05). According to the results, the educational package based on executive functions can be used to increase the working memory of students in schools and educational centers.