![]() PROBLEM POSSING TERHADAP HASIL BELAJAR SISWA POKOK BAHASAN STOIKIOMETRI KELAS X IPA SMA NEGERI 8 PONTIANAK. Students' perception of the module's content and learning that uses modules were very positive.The result one sample t-test of showed that the stoichiometry module based on difficult concept and misconception was more effective to improve the understanding of students in the topic of stoichiometry than exercises(thitung (2,923) > ttabel (1,995)). Vol 5, No 1 (2017): Jurnal Ilmiah Ar-Razi. ![]() ![]() The results of research showed that students who were taught with module and those who were taught with exercises had average percentages as following: mastery learning were 49,27% and 31,88%, reduction of difficult concept were 16,94% and 14,38%, and reduction of misconception were 10,0% and 4,6% respectively. Analysis technique data used descriptive and statistic analysis. Colleting datas used two set of diagnostic tests and a questionnaire student's perceptions. The purposes of the research were to describe students' mastery learning, understanding, perception, and to determine the effectiveness of the stoichiometry module based on difficult concept and misconception which were compared with the exercises.
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