<![CDATA[Worksheets are one of the learning tools that must be prepared by teachers before carrying out learning. In the post-pandemic era, teachers are required to think creatively so that learning can facilitate millennial students who tend to like the digital world. This causes the need for digitalization of worksheets so that students can learn anytime and anywhere without having to bring traditional teaching tools so far. Therefore, the purpose of this study is to design a electronic worksheet based on Tri-N and Ethno-Math that is boost feasibility for geometry and measurement. The stages of this study use the design and development stages. The design stage aims to design e-worksheet products, while at the development stage, the expert validation stage is carried out on e-worksheet products. The results of this first-year research have designed the e-worksheet phase D with geometry and measurement elements. The results of the validation of the e-worksheet product showed that the content validity index was more than 0.875. Concerning these results, it can be concluded that the e-worksheet is stated to be very good in terms of visual design and organization, mathematical subject matter, aspect of Tri-N, and linguistic or language aspect. For this reason, the results of this study need to be tested on a limited scale to see the practicality of the designed products.]]>
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