The aim of this study is to develop an e worksheet that refers to a competent and effective problem-based learning model. The method of this study is RnD (Research and Development). This study includes a development study using a 4D development model (Define, Design, Develop, and Dissiminate). The product of this study is the e worksheet problem-based learning model. High school teachers validate learning tools with three practical validators. Subjects were class X students in mathematics and natural science public high school 1 Baturetno. The results showed that 1) the e worksheet problem-based learning model was included in the valid category, 2) the e worksheet problem-based learning model was used effectively in e-learning
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