PENGEMBANGAN LEMBAR KERJA SISWA PRAKTIKUM BERBASIS INKUIRI TERBIMBING PADA POKOK MATERI REAKSI REDUKSI-OKSIDASI

Penelitian ini bertujuan untuk menghasilkan lembar Kerja Siswa (LKS) praktikum berbasis inkuiri terbimbing pada pokok materi reaksi reduksi-oksidasi yang dapat digunakan untuk siswa kelas X tingkat SMA/MA. Metode penelitian yang digunakan adalah educational design research. Validator dalam penelitian ini adalah 3 orang dosen pendidikan Kimia FPMIPA UPI, dan 2 orang guru kimia SMA. Sedangkan pratisipan dari penelitian ini adalah 12 orang siswa kelas X di salah satu SMA negeri di Kabupaten Bekasi. Instrumen yang digunakan berupa lembar prosedur optimasi, lembar uji kelayakan, lembar observasi keterlaksanaan praktikum, rubrik penilaian jawaban siswa terhadap tugas-tugas pada LKS, dan lembar angket respon siswa. LKS disusun berdasarkan indikator keterampilan inkuiri dan prosedur hasil optimasi. Hasil optimasi prosedur pembuatan magic solution adalah air 200 ml, betadine 40 tetes, dan jumlah keping vitamin C yaitu ¼ keping. Hasil uji kelayakan oleh dosen dan guru terhadap kesesuaian komponen dalam LKS praktikum yang dikembangkan dengan indikator keterampilan inkuiri, kesesuaian konsep, tata bahasa, serta tata letak dan perwajahan termasuk ke dalam kategori sangat baik. Hasil keterlaksanaan praktikum berdasarkan lembar observasi keterlaksaan praktikum termasuk kedalam kategori sangat baik dan penilaian terhadap jawaban siswa pada LKS praktikum yang dikembangkan termasuk dalam kategori baik. Respon siswa terhadap LKS praktikum yang dikembangkan termasuk kedalam kategori sangat baik dan respon siswa terhadap praktikum menggunakan LKS praktikum yang dikembangkan termasuk dalam kategori baik. LKS praktikum yang dikembangkan dapat digunakan sebagai bahan ajar di SMA kelas X untuk materi reaksi reduksi-oksidasi. This research aimed to produce a student lab worksheet of guided inquiry-based on the topic of oxidation-reduction reactions that can be used by students class X at the senior high school. The research was conducted using an educational design research method. The validators in this research were 3 lecturers of Chemistry education, FPMIPA UPI, and 2 high school chemistry teacher. While the participants of this research were 12 students of class X in one of the public high schools in Bekasi Regency. The instruments used in this research were optimization of experiment procedure sheet, feasibility sheets, practical implementation observation sheet, assessment guidelines for student assignments, and student questionnaire responses sheets. The student lab worksheet was arranged according to indicator of inquiry skills and optimization result. The optimization result of experiment procedure for making magic solution were 200 ml of water, 40 drop of betadines, and ¼ pieces of vitamin C. The results of lecturers and teachers about feasibility to aspects of components suitability in student lab worksheet with indicators of inquiry skills, suitability of concepts, grammar, layout, and display were in an excellent category. The result of practical implementation observation sheet was in an excellent category and the assessment result of student assignments was in a good category. The students' responses to the student lab worksheet were in an excellent category and student responses to the experiment were in a good category. The student lab worksheet based practicum can be used as teaching materials in class X senior high school for topic of oxidation-reduction reactions