This study aims to describe the application of 3D visualization and gamification based on Interactive Flat Panel (IFP), increasing active student participation, and improving sixth grade students' conceptual understanding of the Solar System topic. The study used a Classroom Action Research (CAR) approach. The results showed that teacher activity in displaying 3D visualization increased from 64.47% in Cycle I to 84.21% in Cycle II, while student participation activities through gamification elements increased from 64.06% to 84.38%. Students' classical mastery increased from 26.3% in the pre-action to 63.2% in Cycle I and 84.2% in Cycle II, with the class average score increasing from 45.95 to 75.63, and an overall average N-Gain of 0.53 (moderate category) achieved evenly by all students. These findings prove that the integration of 3D visualization and gamification based on IFP is effective in improving conceptual understanding, active participation, and student learning outcomes in science learning on the Solar System topic in elementary schools.
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