Implementasi Project-Based Learning pada Mater Sel: Studi Eksperimen di SMP Negeri 1 Bolaang

This study aims to determine the influence of the Project-Based Learning learning model on student learning outcomes in Animal and Plant Cell material. The background of this research is based on the low achievement of student learning outcomes at SMP Negeri 1 Bolaang, which is caused by conventional learning methods that are still dominant and the lack of active involvement of students in the learning process. This study uses a quasi-experimental approach with a nonequivalent control group design. Two VIII classes were selected as samples, namely the experimental class treated with project-based learning and the control class taught conventionally. The instruments used were pretest and posttest essay tests. The analysis results showed a significant increase in the average learning outcomes in the experimental group (81.72) compared to the control group (76.72). The Mann-Whitney statistical test showed a significance value of 0.043, meaning that the two groups had a significant difference in learning outcomes. These findings show that Project-Based Learning encourages students' active engagement, creativity, and deep understanding of biological concepts. This research strengthens the evidence that project-based learning is an effective strategy for improving student learning outcomes and is relevant to the middle level science curriculum. Implicitly, teachers are encouraged to integrate this model in contextual and collaborative science learning.