PENGEMBANGAN LKS BERBASIS KONSTRUKTIVISME PADA MATERI TEMATIK TEMA 2 UNTUK KELAS 4 SEKOLAH DASAR

Students worksheet generally find in every school is summary of the material and exercises. The same thing as in SDN Puton. Students worksheet contained the summary of the material and students exercises without using constructivism. Researcher found that in 4 grade of elemtary students of Puton, the students find difficulties in learning sub topic “Energy Sources” therefore researcher choose to developed students worksheet for sub topic “Energy Source” as base of constructivism aimed to the students can build the knowledge gained and associated with the students experience. This research aimed to develped students worksheet base as contextual which valid, effectived and practice. The type of research used is a development study using the ADDIE model, Steps for developing the ADDIE model: (1) Analytical, (2) Design, (3) Development, (4) Implementation, (5) Evaluate. The subjects of validity test are validator of material experts, LKS experts, linguists and learning experts, while the subject of LKS implementation is fourth grade students of SDN Puton with 14 students. The research was conducted in May 2018. The instruments used were interview, validation sheet, teacher and student response questionnaire. According to the result of the research which had been analyzed from the master of validation, the researcher got 84% which categorized as very valid, the result from the master of worksheet got 86% which categorized as very valid, the result from the master of linguists got 83% which categorized as very valid and the result from the master of learning experts got 93% which categorized as very valid. Students worksheet that have been implemented in the class get the result of questionnaire of the students response equal to 86% enter into very practice category and result of teacher response questionnaire obtained 92% which enter into practical category. So it can be concluded that the constructivism based on students worksheet developed valid, effective, and practical