Abstract:This study aims to produce Islamic-based Student Worksheets (LKS) on reproductive system material for class XI students that are valid and practical. This research method uses the development method, using the 4-D (four D) model, define, design, develop, and deploy. Given the limitations of the authors, this study only uses three stages of development, namely the define, design, and develop stages. The results of the study explain the processing of questionnaire validation data, resulting in a percentage of 97… Show more
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