PENGEMBANGAN LKS BERBASIS REPRESENTASI LEVEL SUB-MIKROSKOPIK PADA MATERI SISTEM KOLOID KELAS XI SMA NEGERI 1 TAMAN SIDOARJO (DEVELOPMENT OF STUDENTS WORKSHEET BASED REPRESENTATION OF SUB-MICROSCOPIC LEVEL IN COLLOID SYSTEM 11TH GRADE SMAN 1 TAMAN SIDOARJO)

Abstract

Penelitian ini bertujuan untuk mengetahui kelayakan teoritis LKS ditinjau dari validitas meliputi kelayakan materi, penyajian dan bahasa, serta untuk mengetahui kelayakan empiris LKS ditinjau dari aktivitas siswa selama pembelajaran, hasil belajar dan respon siswa setelah pembelajaran terhadap LKS yang dikembangkan. Desain penelitian ini menggunakan model pengembangan 3-D, karena tahap penyebaran tidak dilakukan. Instrumen yang digunakan adalah lembar telaah, validasi, pengamatan aktivitas siswa, Tes, dan respon siswa. Telaah dan validasi dilakukan oleh dosen kimia dan guru kimia. Uji coba terbatas dilakukan terhadap 15 siswa kelas XI SMA Negeri 1 Taman Sidoarjo. Metode yang digunakan adalah angket, tes, dan pengamatan. Data yang diperoleh dianalisis secara deskripsi kualitatif dan kuantitatif. Hasil validasi memenuhi kesesuaian kelayakan teoritik yaitu validitas materi, validitas penyajian, validitas bahasa dengan persentase sebesar 91,8%; 91,7%; 88,9%; 90%, dengan kriteria sangat layak. LKS juga memenuhi kesesuaian kelayakan empiris meliputi aktivitas siswa, respon siswa dengan persentase sebesar 94,4%; 99,5%, dengan kriteria sangat layak serta hasil belajar siswa yang menunjukkan adanya peningkatan siswa yang tahu konsep.

Kata Kunci: Lembar Kerja Siswa, Representasi, Sub-mikroskopik, Sistem Koloid, kelayakan.

This study aims to determine the feasibility in terms of the validity of the theoretical worksheets include material feasibility, presentation and language, as well as to determine the feasibility of an empirical review of student activity worksheets for learning, learning outcomes and student response after learning of the worksheets are developed. This study using 3-D models, because disseminate step is not done. The instrument used in this study were review, validation, observation of activity student sheet, tests, and student responses. Review and validation have been done by chemistry lecturers and chemistry teacher. Limited trial test was conducted to 15 students of 11^th grade of SMAN 1 Taman Sidoarjo. The method used in this study were questionnaire, tests, and observations. This data is analyzed by qualitative and quantitative description. Validation result the suitability of eligibility meets the theoretical validity of the material, the validity of presentation, the validity of language with a percentage of 91.8%; 91.7%; 88.9%; 90%, with very feasible criteria. Student worksheet also meet eligibility suitability empirical include student activities, student responses with percentages of 94.4%; 99.5%, with a very feasible criteria and learning outcomes based on student that showed an increase in students who know the concept.

Key words:  Student worksheet, Representation, Sub-microscopic, colloid systems, feasibility.