摘要：This development research aims at the realization of the development of teaching materials based on Problem Based Learning to know the practicality and effectiveness of PBL teaching materials to improve high thinking skills of fourth grade students of elementary school. The research method used is research development (Development and Development) by using research steps according to Borg and Gall. The population in this research is the fourth grader of elementary school in one cluster of Kalianda District and the sample of the research is 28 fourth graders of elementary school. Data collection techniques in this study were conducted by the documentation, observation, expert validation sheet, questionnaire needs analysis, and tests. The results showed that the teaching materials developed can improve the ability of high-level thinking and learning outcomes of learners who have been analyzed using N-Gain.
关键词：Development of Teaching Materials;Problem Based Learning Model;High Level Thinking
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