The results of content and design validations was 80% and 87% with valid criteria without revision, an n-gain score of 0.4 with medium category, and the t-test showed that there were significant differences between pre-test and post-test. Module effectiveness is analysed from graduation, n-gain scores, and t-test results of the pre-test and post-test. The research design for the number of research subjects factored for as many as 30 students. The module effectiveness test uses a pre-experimental model with one pretest-posttest group. The draft module was validated by two material experts and one media expert using a validated questionnaire. This study is developmental research using the ADDIE design model limited to the evaluation stage. The purpose of this study is to develop ethnoscience based acid-base modules to improve student's scientific literacy ability.
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