AbstrakPenelitian ini bertujuan untuk mengetahui pengaruh penggunaan media pembelajaran terhadap motivasi pembelajaran fisika kelas XI MIPA 1 SMA Titian Teras. Jenis penelitian yang digunakan adalah penelitian analisis deskriptif. Hasil penelitian menunjukkan bahwa rata-rata tingkat motivasi belajar termasuk dalam kriteria sedang. Penelitian tentang motivasi belajar siswa kelas XI MIPA 1 SMA TitianTeras MuaroJambi, menunjukkan bahwa rata-rata tingkat motivasi belajar termasuk dalam kriteria sedang untuk siswa kelas XI MIPA 1 SMA TitianTeras MuaroJambi .Banyak faktor yang mempengaruhi kontribusi terhadap pencapaian nilai rata-rata siswa, salah satunya motivasi belajar. Motivasi belajar sangat penting dalam proses pembelajaran karena proses belajar membutuhkan interaksi dan partisipasi aktif dari peserta didik untuk berhasil. Kata kunci: media, motivasi Abstract This study aims to determine the effect of the use of learning media on the learning motivation of physics class

Biodegradable plastic is made by mixing from temu ireng rhizomes starch matrix, sorbitol as a plasticizer, and chitosan as a filler through the melt intercalation method. heating process at 800C and drying at 70oC. The results show that the addition of chitosan and sorbitol has an effect on the characteristics of the plastic. The best tensile strength results on biodegradable plastic with a mass composition of starch: chitosan 5:5 gram without the addition of sorbitol is 4.03 MPa. The best percentage of elongation in plastic with a composition of starch: chitosan 8:2 gr and 3 ml Sorbitol is 99.68%. The best water resistance to biodegradable plastic was the composition of starch: chitosan 5:5 gr without the addition of sorbitol is 83.33%. And the best biodegradability in plastic with a composition of 5:5 chitosan without the addition of sorbitol  was 100% for 9 days. FTIR test results show that biodegradable plastic have the same wavelength as their constituent raw materials. This shows that the resulting film only interacts physically.