<![CDATA[21st-century education requires students not only to excel academically but also to master communication, collaboration, and creativity skills. However, interviews with Biology teachers at SMA Negeri 10 Sijunjung revealed that limited learning resources, especially textbooks, caused low student activity and many students’ achievement scores below the minimum criteria. To address this problem, a video-based e-module was developed and validated for practicality, but its effectiveness in learning had not been tested. This study aimed to determine the effectiveness of using a video-based e-module on environmental change material towards cognitive ability (learning outcomes), communication skills, and collaboration skills of Phase E students. This research employed an experimental method with a Randomized Only Control Group Design. The experimental group used Discovery Learning with a video-based e-module, while the control group did not use the video-based e-module. Samples were selected purposively based on similar average exam scores, with class X Phase E2 as the experimental group and X Phase E3 as the control group. The results showed that the average learning outcome was 79.56 (high category), communication skills 87.65 (very high), and collaboration skills 88.04 (very high). Based on data analysis, the use of video-based e-modules was not effective in improving learning outcomes, communication, and collaboration skills.]]>
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