<![CDATA[This research aims to produce e-worksheets on the volume of cuboid and cylinder that are valid, practical, and have a potential effect on the mathematical problem solving ability of seventh grade students. This research is based on the Indonesian Realistic Mathematics Education (I-RME) approach using the context of the Palembang Suro Mosque with a development research method through the Tessmer research model which consists of 2 stages. The first stage is the preliminary stage (preparation and design stage) and the second stage is the formative evaluation stage (self evaluation, expert review, one-to-one, small group, and field test). The data collection techniques used were validation sheets, questionnaires, interviews, and tests. The results of this research indicate that (1) the e-worksheets developed is "valid" with an average score of 4.15, (2) the e-worksheets developed is "practical" with an average score of 81.43, (3) the e-worksheets developed has a potential effect on mathematical problem solving ability of 72.28 with a "high" category.]]>
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