Development of Student Worksheets Based of Problem Based Learning to Improve Learning Outcomes on the Importance of Healthy Food for the Body in Class V Students in Elementary Schools

The aim of this research is to describe the effectiveness, validity and practicality of student worksheets based on problem based learning to improve the learning outcomes of fifth grade elementary school students on the importance of healthy food for the body. The design used in this research is Research & Development (R & D). In this research, data collection instruments were used, learning outcomes tests, observation sheets, interviews, questionnaires, and documentation guides. Before the data collection instrument is used, expert validation and empirical validity tests or question item validation tests are carried out. The results of these three types of tests show that all instruments meet the requirements to be used as research data collection instruments. After the data was collected completely, data analysis was carried out using t-test data analysis techniques, relative effectiveness analysis, and practicality testing. Based on the research results, it can be concluded that the student worksheet based on problem based learning is proven to have high effectiveness, validity and practicality in achieving the goals of fifth grade elementary school students regarding the importance of healthy food for the body. Therefore, it is hoped that teachers will use student work sheets based on problem based learning in learning at school.