This study aims to develop an E-module on problems related to teaching materials in schools. The teaching materials used have not been compiled based on a learning approach that includes contextual issues and involves students in the learning process so that critical thinking skills learning has not been maximized. Based on the analysis of the problems in the background, an e-module based on a team-based project integrated with socio-scientific issues was developed. This research method uses the R&D method of the ADDIE development model. The results of this study indicate that: 1) the e-module for environmental change based on a team-based project integrated with Socio-Scientific Issues (SSI) has an average value from the media expert validator of 94% while the average value from the material expert validator is 97% in the very eligible category. 2) The results of student and teacher responses have an average percentage value of 93.21% in the good category. 3) Comparison of student pretest and posttest results in a limited scale trial on 34 students showed that the average pretest was 64.58, and the average posttest value was 86.35. In general, the developed e-module meets the criteria of being very feasible and very practical so that this e-module product can be used as a reference for critical thinking skills at SMA Negeri 2 Kota Ternate.
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