Abstract
This study aims to determine the effect of the use of video tracker on learning guided inquiry-based simple harmonic motion towards graph interpretation skills. The sample of this research is the students of class X MIPA 3 Bandar Lampung High School 15. This study uses One Group Pretest-Posttest Design with Paired Sample T-Test analysis techniques. Learning is done by conducting simple inquirybased harmonic motion practicum activities, then processing experimental data by analyzing experimental videos using the tracker application. Based on the results of the study, it was found that the average score of the skill in interpreting the graph had increased by 58.64% with the average NGain being (0.68) at the 95% confidence level. These results indicate that learning using a tracker can improve graph interpretation skills well. Based on the test results obtained significance of 0.00, it can be concluded that there are significant differences in students' graph interpretation skills before and after learning using tracker. Keywords: simple harmonic motion, guided inquiry, graph interpretation skills, tracker
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