<![CDATA[Abstract This study aims to: 1) Know the feasibility of CTL (Contextual Teaching and Learning) based Lembar Kerja Peserta Didik(LKPD) 2) Know the practicality of CTL (Contextual Teaching and Learning) based Student Worksheets (LKPD) and 3) Know the effectiveness of the Lembar Kerja Peserta Didik (LKPD) Lembar Kerja Peserta Didik(LKPD) based on CTL (Contextual Teaching and Learning). The type of research used is development research which refersto the ADDIE Model (Analysis, Design, Development, Implementation, Evaluation). The instruments used were validation questionnaires, student response questionnaires and learning outcomes tests. Data analysis techniques using quantitative descriptive. The results of the study consisted of: 1) The feasibility of CTL (Contextual Teaching and Learning)-based worksheets for material validators by lecturers was 82% with very appropriate criteria, 85.5% for material validators by teachers with very feasible criteria, the results of language validation were 66% with feasible criteria and design validation by the design validator is 84% very feasible criteria. 2) The practicality of CTL (Contextual Teaching and Learning)-based LKPD through student responses for individual tests 90% with very practical criteria, 85% for small group tests with very practical criteria and 92% for field trials with very practical criteria. 3) The effectiveness of CTL (Contextual Teaching and Learning)-based LKPD is 87% with very effective criteria. Keyword: - Abstrak Penelitian ini bertujuan untuk:1) Mengetahui kelayakan Lembar Kerja Peserta Didik (LKPD) berbasis CTL (Con textual Teaching and Learning) 2) Mengetahui kepraktisan Lembar Kerja Peserta Didik (LKPD) berbasis CTL (Contextual Teaching and Learning) dan 3) Mengetahui efektivitas Lembar Kerja Peserta Didik (LKPD) berbasis CTL (Contextual Teaching and Learning). Jenis penelitian yang digunakan adalah penelitian pengembangan yag mengacu pada model Model ADDIE (Analysis, Design, Development, Implementation, Evaluation). Instrumen yang digunakan yaitu angket validasi, angket respon peserta didik dan tes hasil belajar. Teknik analisis data menggunakan deskriptif kuantitatif. Hasil penelitian terdiri dari :1)Kelayakan LKPD berbasis CTL (Contextual Teaching and Learning) untuk validator materi oleh dosen 82% berkriteria sangat layak, validator materi oleh guru sebesar 85,5% berkriteria sangat layak, hasil validasi bahasa adalah 66% berkriteria layak dan validasi desain oleh validator desain adalah 84% kriteria sangat layak. 2) Kepraktisan LKPD berbasis CTL (Contextual Teaching and Learning) melalui respon peserta didik untuk uji perseorangan 90 % berkriteria sangat praktis, uji kelompok kecil 85% kriteria sangat praktis dan uji coba lapangan 92% berkriteria sangat praktis. 3) Efektivitas LKPD berbasis CTL (Contextual Teaching and Learning) sebesar 87% berkriteria sangat efektif. Kata Kunci: -]]>
