Abstract
This study is research and development (RD) and using 4-D models, but disseminate step is not done. Validation of student worksheets has been done by chemistry lecturers and chemistry teachers. The practicality of student worksheets has been done by chemistry teachers and students of 2nd grade of SMAN 1 Pariaman. The result showed that moment kappa average of validity was 0,83 with very high validity category and moment kappa average of practicality were 0,9 by chemistry teachers and 0,86 by students with very high category. Therefore student worksheets of molecular shape based on structured inquiry with emphasis on the submicroscopic level using 3-D models is valid and practice to be used on the chemistry learning.
Highlights
Jenis penelitian ini merupakan penelitian dan pengembangan (R&D) dan menggunakan model pengembangan 4-D, tetapi tahap disseminate tidak dilakukan
Validation of student worksheets has been done by chemistry lecturers and chemistry teachers
The practicality of student worksheets has been done by chemistry teachers and students of 2nd grade of SMAN 1 Pariaman
Summary
Materi bentuk molekul merupakan salah materi pelajaran kimia kelas X semester ganjil yang mempelajari tentang susunan tiga dimensi dari atom-atom dalam molekul. Pembelajaran yang menekankan pada level submikroskopik akan membantu peserta didik dalam mempelajari bentuk molekul. Selain itu menggunakan model tiga dimensi pada materi bentuk molekul berdasarkan teori VSEPR dapat memudahkan peserta didik dalam mempelajari bentuk molekul yang abstrak atau tidak dapat dilihat oleh mata telanjang[10]. Inkuiri merupakan salah satu model pembelajaran Kurikulum 2013 yang dapat melatih peserta didik dalam menemukan konsep. Penelitian sebelumnya menyatakan bahwa pembelajaran menggunakan LKS berbasis inkuiri terstruktur dapat membantu peserta didik dalam memahami konsep serta memperoleh hasil belajar yang lebih baik[16]. Berdasarkan permasalahan di atas, maka diperlukan pengembangan LKPD bentuk molekul berbasis inkuiri terstruktur dengan penekanan pada level submikroskopik menggunakan pemodelan tiga dimensi.
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