<![CDATA[This research aims: 1) to test the effect of the case-based PjBL model on student learning completion in an addictive substance material at SMPM 3 Surabaya; 2) to train the creativity of SMPM 3 Surabaya students in the case-based PjBL model on the addictive substance material; 3) To describe the implementation of the case-based PjBL model in learning additive substance material at SMPM 3 Surabaya; 4) To describe students' responses to the case-based PjBL model in learning addictive substance material. This type of research is pre-experimental with a One Group Pretest Posttest design. The target of the research was 16 students in class VIII of SMP Muhammadiyah 3 Surabaya. Data collection techniques used was observation, tests and questionnaires. The research results obtained: (1) The implementation of the case-based Project Based Learning model shows very good results. (2) The case-based Project Based Learning model can train students' learning creativity in the "very creative" category. (3) The case-based Project Based Learning Model The N-Gain results show that the PjBL model is quite effective in increasing student learning completion. (4) Student responses to the case-based Project Based Learning model show a positive response. The case-based Project Based Learning model can be used as an alternative in science learning in junior high schools.]]>
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