Development of Discovery Learning Based Interactive Multimedia on the Subject of Transformation for Class IX of MTs Negeri 3 Langkat

This study aims to determine: (1) Knowing the interactive multimedia based on discovery learning on the subject of transformation that is developed is suitable for use as a learning medium. (2) Knowing the use of interactive multimedia based on discovery learning on the subject of transformation that was developed to effectively improve student learning outcomes. This type of research is research and development (Research and Development). The subjects in this study were students of class IX-7 MTs Negeri 3 Langkat, totaling 25 students. The research instrument is a test of mathematics learning outcomes as a result of student work, practicality questionnaires, and student responses after using discovery learning-based interactive multimedia. The results of this study indicate that 1) interactive multimedia can increase students^ interest in learning independently in understanding mathematics subject matter so that it has a good impact on improving student learning outcomes. 2) In the first trial there was an increase in the value with low criteria (g 0.3) and in the second trial there was an increase in the value with moderate criteria (0.3 < g ≤ 0.7). Therefore, student learning outcomes using interactive multimedia are higher than student learning outcomes before using interactive multimedia as seen from classical completeness and learning time. The interactive multimedia used in the study proved to be effective in improving students’ mathematics learning outcomes in grade IX.