<![CDATA[The 2013 curriculum implemented by the government is expected to improve the quality of education. The scientific approach is the approach used in K13, which is a science-based approach. The research carried out is a follow-up study of the development of discovery learning-based colloid system e-modules for high school/MA students which has been tested for validity and practicality, but its effectiveness has not been tested. The purpose of this experiment is to see the effectiveness of using discovery learning e-modules for high school/MA students. The type of research used is pre-experimental using One Group-Pretest-Postest. The results obtained from this study are t-test with a significance level of 0.05, namely sig(2-Tailed) data obtained 0.000 proving that H0 is rejected, because the value of Sig <0.05 and H1 is accepted. The result of the N-Gain value in the sample class is 0.816. Based on the results of this study, it shows that the application of this e-module is very good in achieving goals and can develop learning outcomes for high school students]]>
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