Pengembangan Media Ensiklopedia Bentuk dan Fungsi Tumbuhan Melatihkan Berpikir Kritis Siswa Sekolah Dasar

摘要

Encyclopedia media development research has a goal that is worth practicing the critical thinking of fourth grade students in terms of plant form and function in terms of validity, practicality, effectiveness. This type of quantitative research (R&D) model is Borg and Gall. Data collection techniques: observation, questionnaire, and test. Data analysis techniques: validity and reliability, student activities, lesson plans and critical thinking tests. The results of the Encyclopedia media validator are valid for use, tested at SDN MOJO VI / 225 with One Group Pretest-Postest Design. The results of Encyclopedia media validation 96% valid, RPP implementation 94% performed well with the Discovery Learning model, the effectiveness of the N-Gain critical thinking test 0.75 (high), positive response 97%. Conclusion Media Encyclopedia of Plant Form and Function is appropriate to be used to train Critical thinking.