“THE EFFECTIVENESS OF USING AUDIO-VISUAL MEDIA BASED ON POLYA’S PROBLEM-SOLVING THEORY IN ELEMENTARY SCHOOL STUDENTS’ MATHEMATICS LEARNING (CASE STUDY AT THE UPTD SDN MAULAFA)” (2026) Journal of Innovative Technologies in Learning and Education, 3(1), pp. 36–47. doi:10.37792/jitle.v3i1.1919.