ABSTRAK
Tujuan penelitian adalah untuk mengembangkan media pembelajaran berupa ensiklopedia hukum-hukum dasar kimia dan mengetahui kelayakan media pembelajaran tersebut.
Penelitian ini mengacu pada metode penelitian dan pengembangan (Research and Development) menurut Borg & Gall yang disederhanakan oleh peneliti. Prosedur penelitian dan pengembangannya adalah 1) analisis kebutuhan, 2) perencanaan, 3) pengembangan draf produk, 4) uji coba lapangan awal dan revisi, 5) uji coba lapangan dan revisi, 6) uji pelaksanaan lapangan dan revisi, dan 7) validasi ahli. Sampel dalam penelitian ini adalah siswa kelas X dan XI di SMAN 1 Boyolali dan SMAN 1 Teras 2013/2014. Teknik pengujian kelayakan menggunakan metode angket dan metode tes.
Hasil penelitian menunjukkan bahwa ensiklopedia hukum-hukum dasar kimia dapat dikembangkan melalui metode penelitian dan pengembangan dan ensiklopedia hukum-hukum dasar kimia yang dikembangkan secara umum memiliki kelayakan yang baik berdasarkan penilaian oleh, praktisi, peserta didik, dan tim ahli; mampu meningkatkan hasil belajar peserta didik jika dilihat dari hasil pretest dan posttest.
Kata Kunci: penelitian dan pengembangan, media pembelajaran, ensiklopedia, hukum-hukum dasar kimia  
ABSTRACT
The purposes of this research were developing the instructional media form encyclopedia of fundamental laws of chemistry and knowing the feasibility of the instructional media.
This research was refer to the research and development method by Borg & Gall that simplified by researcher. The procedures of this research were: 1) need analyzes, 2) planning, 3) develop preliminary form of product, 4) preliminary field testing and revision, 5) main field testing and revision, 6) operational field testing and revision, and 7) expert validation. The sample of this research was students of SMAN 1 Boyolali and SMAN 1 Teras grade X and XI in the academic year of 2013/2014. For verifying the encyclopedia of fundamental laws of chemistry feasibility was using questionnaire and test method.
The results showed that the encyclopedia of fundamental laws of chemistry can be developed through research and development method and the encyclopedia of fundamental laws of chemistry which had been developed generally had good feasibility based on the assessment of practitioners, students and expert team; increasing student learning outcomes when seen from the results of pretest and posttest.
Key words : research and development, instructional media, encyclopedia, fundamental laws of chemistry