Pengembangan Media Papan Hitung Berbasis Pembelajaran Aktif untuk Meningkatkan Motivasi Belajar Matematika Siswa Kelas 1 SDN 1 Kalijaga Timur

This study aims to develop an active learning-based counting board as a learning medium to improve students’ motivation to learn mathematics at SDN 1 Kalijaga Timur. The research employed a Research and Development (R&D) method using the ADDIE development model, which consists of five stages: Analysis, Design, Development, Implementation, and Evaluation. The subjects of the trial were 15 first-grade students at SDN 1 Kalijaga Timur. The product developed was a counting board learning medium. The research data were collected through material expert validation sheets, media expert validation sheets, interviews, and questionnaires. The material expert validation results obtained a score of 27, with an average of 4.50, categorized as very good. The media expert validation results obtained a score of 50, with an average of 4.55, also categorized as very good. The practicality of the learning medium was assessed through interviews with three teachers. The interview results indicated that the medium was easy to use, helped teachers deliver addition lessons, was appropriate for students’ characteristics, and supported active student engagement in the learning process. Meanwhile, the student motivation questionnaire results yielded a total score of 858, with an average of 57,20, categorized as very good. These findings indicate that the active learning-based counting board is feasible and practical for use in teaching addition in mathematics and can improve the learning motivation of first-grade students.