This study aims to analyze the application of the experimental method 'Pingpong Spinning' on the understanding of fourth-grade students at SD Negeri 159 Pekanbaru regarding the concepts of friction force and gravitational force. The experimental method was chosen to provide students with direct experience in observing physical phenomena, thereby enhancing their conceptual understanding. The research involved 30 students divided into three heterogeneous groups. The results showed that Group 1 achieved the highest score, reflecting a very good understanding, while Groups 2 and 3 demonstrated lower levels of understanding. These findings indicate the need for reinforcing concepts for students who are still facing difficulties. Therefore, it is recommended that learning be more interactive and involve group discussions and additional experiments to deepen students' understanding. Providing constructive feedback is also considered important to help students recognize their mistakes and improve the quality of science learning in elementary schools.
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