DESAIN PEMBELAJARAN POLIMER MENGGUNAKAN MODEL READ, ANSWER, DISCUSS, EXPLAIN DAN CREATE (RADEC) BERBASIS GOOGLE CLASSROOM UNTUK MENGEMBANGKAN PENGUASAAN KONSEP DAN KREATIVITAS SISWA SMK PADA PEMBUATAN BIOPLASTIK

Penelitian ini bertujuan untuk mengembangkan desain pembelajaran polimer menggunakan model read, answer, discuss, explain dan create (RADEC) berbasis google classroom untuk mengembangkan penguasaan konsep dan kreativitas siswa SMK pada pembuatan bioplastik. Metode penelitian Design-Based Research (DBR) model Greivemeijer & Cobb yang terdiri dari 3 fase yaitu Preliminary Design, Design of Experiment and Retrospective Analysis. Subjek dalam penelitian ini adalah 29 siswa kelas X jurusan Rekayasa Perangkat Lunak/RPL. Sedangkan partisipan adalah guru Kimia dan 5 orang observer. Data dikumpulkan dengan tes, lembar observasi keterlaksanaan, wawancara dan instrumen kreativitas. Desain dan semua instrumen divalidasi oleh 7 validator (4 dosen dan 3 guru kimia) berpengalaman. Tes dinyatakan valid sesuai kriteria Lawshe (CVR 0,851 lebih besar dari CVR kritis 0,622) dan reliabilitas Alpha Cronbach dapat diterima (0,721). Hasil penelitian menunjukkan bahwa karakteristik desain pembelajaran polimer dengan model RADEC berbasis google classroom berdasarkan TCOF untuk mengembangkan kreativitas siswa tergolong tinggi untuk rata-rata per kategori. Sedangkan untuk tiap tahapan RADEC tergolong tinggi untuk tahap read, answer, explain, create dan sedang untuk tahap discuss. Keterlaksanaan desain tergolong sangat baik (88%) sesuai kriteria Mulyadi. Penguasaan konsep siswa tergolong tinggi (Ngain 0,73) sesuai kriteria Hake. Kreativitas tergolong sangat baik (90%) sesuai kriteria Riduwan. Penelitian ini menghasilkan desain pembelajaran polimer sementara yang siap pakai.;This study aims to develop a polymer learning design using a model of reading, answer, discuss, explain and create (RADEC) based on google classroom to develop the mastery of concepts and creativity of vocational students in making bioplastics. The researcher uses Greivemeijer & Cobb's Design-Based Research (DBR) research method which consists of 3 phases, namely Preliminary Design, Design of Experiment and Retrospective Analysis. The subjects in this study were 29 grade X students majoring in Software Engineering. While the participants were Chemistry teachers and 5 observers. Data were collected by tests, observational sheets, interviews and instruments of creativity. The design and all instruments were validated by 7 experienced validators (4 lecturers and 3 chemistry teachers). The test was declared valid according to Lawshe's criteria (CVR 0.851 greater than the critical CVR 0.622) and Alpha Cronbach's reliability was acceptable (0.721). The results showed that the characteristics of the polymer learning design with the RADEC model based on google classroom based on the TCOF to develop student creativity was high for the average per category. Whereas for each stage RADEC has a high category for the read, answer, explain, create and moderate stages for the discuss stage. The design implementation was classified as very good (88%) according to Mulyadi's criteria. Mastery of students' concepts is relatively high (Ngain 0.73) according to Hake criteria. Creativity is classified as very good (90%) according to Riduwan's criteria. This research produced a temporary polymer learning design that is ready to use