The present study aimed to find out the fourth grade pupils trends of basic education towards the unit is designed in accordance with the expansion Elaboration theory in Social Studies and its relation to their academic achievement , The researcher analyzes the content of the first three units to book social studies for students in the fourth grade of primary education, and re-organize content according to the steps Elaboration theory expansion, and teacher preparation guide on the basis of the proposed olive model in design education, and testing of academic achievement and gauge students' attitudes towards expansion theory, and after confirmation of the validity and reliability of the tools, the researcher applied to a sample of 30 pupils, and the study results that pupils trends about expansionist theory was positive and that there are no differences in the students' attitudes towards unit designed according to Elaboration theory expansion due to the variable Gender (Male, Female) and that there is a statistically significant between pupils trends link towards unit designed according to the expansionist theory and academic achievement.