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This research is development research that aimed to produce an the chemistry teaching material of solution chemistry based STEM-Problem Based Learning approach by Amy Abbot that the valid and practice. The development model used is model ADDIE with Tessmer evaluation. The steps of ADDIE model were used is analysis, design, and development. The steps of Tessmer formative evaluation in this research are expert review, one-to-one and small group. The results obtained at the experts review for validation design score of validity is 0,933 with high category, the validation pedagogic score of validity is 0,976 with high category, and validation material score of validity is 0,833 with high category. The results of practicality test using qualitative data from the walkthrough and the practicality avarage in the one to one stage obtained a scrore of 87,47% with a very high category, while the small group stage got a score 90,98% with a very high category. Based on the evaluation result, it indicate that chemistry teaching material of solution chemistry based STEM-Problem Based Learning has valid and practice.

proceedings of the 4th sriwijaya university learning and education international conference (sule-ic 2020)

Development of Chemistry Teaching Materials Based on STEM Problem Based Learning on Solution Chemistry Materials for Students of Chemistry Education Study Program