Effect of using project based learning (PBL) approach in development geometric for grade nine students

For supporting the work collaboratively between the students to get research and create projects that reflect their knowledge. The Project-Based Learning (PBL) come to help the students drive their own learning through sharing each other their experiences in a group to solve challenges facing them in the geometric problem. Therefore, the researcher used the Project-Based Learning (PBL) in this study to appear the difference between use Project-Based Learning (PBL) approach and the traditional approach in improving teaching geometric for grade nine. Through three middle schools, the researcher got a result in improving the achievements of students who follow the PBL approach in teaching geometric by repeated - measures t-test (paired t-test).