Tujuan penelitian ini adalah untuk mengetahui karakteristik dan mengembangkan media audio visual berbantu macromedia flash materi FPB dan KPK untuk pembelajaran matematika SD. Jenis penelitian ini pengembangan (R & D) dengan menerapkan prosedur model ADDIE (Analysis, Design, Development, Implementation, and Evaluation). Subjek penelitian adalah 21 siswa kelas IV SDN Pandean Lamper 04 Semarang. Data penelitian diperoleh dari angket ahli media, ahli materi, tanggapan guru, tanggapan siswa, motivasi belajar dan tes. Hasil analisis ahli media dan materi pembelajaran 94,20% sangat layak, tanggapan guru dan siswa 92,5% dan 89,5% sangat membantu. Hasil rata-rata N-Gain 0,66 pada kriteria sedang, hasil perhitungan t-test nilai thitung = 25,31 > ttabel 1,68288 dapat disimpulkan bahwa H0 ditolak dan H₁ diterima, rataan nilai pretes dan posttes tidak sama dan skor angket motivasi belajar meningkat 31,71. Kesimpulannya bahwa media audio visual berbantu macromedia flash memenuhi kriteria valid, praktis dan efektif untuk pembelajaran matematika di SD.

Kata kunci: Media, Audio Visual, Macromedia Flash, Matematika, KPK dan FPB.

Abstract: The purpose of this research is to know the characteristics and develop audio visual media assisted by macromedia flash material of FPB and KPK for elementary mathematics learning. This type of research is development (R & D) by applying the ADDIE procedure model (Analysis, Design, Development, Implementation and Evaluation). The subjects of this research were 21 students from fourth grade in SDN Pandean Lamper 04 Semarang. The research data were obtained from questionnaire of media experts, material experts, teacher response, students response, learning motivation and test. The results of media expert analysis and learning materials 94.20% are very reasonable, teacher and student responses 92.5% and 89.5% are helpful. The average yield of N-Gain 0.66 on the medium criterion, the result of t-test tcount = 25,31> ttable 1,68288 can be concluded that H0 is rejected and H₁ is accepted, the mean of pretest and posttes value is not same and motivation questionnaire score study increased 31.71. In conclusion that audio visual media assisted by macromedia flash fulfill valid, practical and effective leraning for mathematics in elementary school.

Keywords: Media, Audio Visual, Macromedia Flash, Math, KPK and FPB