Due to the advancement of technology in the current era, the current era has been called the information era. Information that doubles or even multiplies in a short period of time. According to the speed of technological progress, educational courses should be designed in such a way that they respond to the growing needs of the society. According to the stated content, the purpose of this research is to investigate the effect of Merrill's principle of application on learning, memorization and academic motivation of learners, and the main question of this research is whether the principle of Merrill's application has an effect on learning, memorization, and academic motivation of learners.

The current research method is a quasi-experimental research with a pre-test-post-test design with a control group. The statistical population of this research is all primary school students of Khash city, who were studying in the academic year 1400-1401. There are 4 elementary schools in Khash city, and approximately 500 students are studying in elementary school, and the available statistical population is a total of 50 students. And according to the results obtained from this research, there is a significant difference between the learning and memorization of primary school students who were trained according to the principle of the Merrill model and students who were trained in a traditional way.