PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) KIMIA BERBASIS PROBLEM BASED LEARNING (PBL) MATERI HUKUM-HUKUM DASAR KIMIA DAN STOIKIOMETRI KELAS X IPA SMA
Daftar Isi:
- This research is a development research, the aim to produce student’s worksheet based on problem based learning model of the basic laws of chemistry and stoichiometry topic which are valid, practical, and effective. This research implemented in X IPA class of SMA Negeri 1 Inderalaya. The development model is used modification of ADDIE model combined with formative Tessmer evaluation. Techniques of data collection are walkthrough, questionnaires, and test. The result validity of material are 0.81 of Aiken’s coefficient score which categorized as high and 0.653 of Kappa’s coefficient score which categorized as good. The result validity of pedagogical are 0.83 of Aiken’s coefficient score which categorized as high and 0.78 of Kappa’s coefficient score which categorized as good. The result validity of design are 0.96 of Aiken’s coefficient score which categorized as high and 0.684 of Kappa’s coefficient score which categorized as good. Cronbach’s alpha obtained from one to one phase is 0.740 with high category, and Cronbach’s alpha obtained from small group phase is 0.721 with high category. The result of field-test are obtained N-gain score is 0.73 with high category. The result of research showed that the student’s worksheet based on problem based learning model of the basic laws of chemistry and stoichiometry topic has met the following criteria valid, practical, and effective Key words: Research Development, Student’s Worksheet, Problem Based Learning, the basic laws of chemistry and stoichiometry