Abstract. This study aims to improve students' ability to solve the material Plan in class VI SDN Sepanjang 2. This study was conducted by Classroom Action Research method (PTK). Data analysis techniques use student activity observation, teacher activity observation, learning result test with problem-solving stages, and student response questionnaire. Results The data analysis obtained as follows: Test results with the ability to solve the problem, activity of learners, the student's response, and teacher activity has increased. Based on the results of data analysis, it can be concluded that the application of problem-based learning can improve students problem solving skills the material plan in class VI SDN Sepanjang 2.