<![CDATA[This research aims to improve students' interest in learning about Three-Dimensional Shapes material through the application of the Project Based Learning (PjBL) model in grade IV of SD Negeri 1 Galala, Ambon City. The approach used is descriptive qualitative with Classroom Action Research (CAR) conducted in two cycles. Research subjects were 24 fourth grade students. Each cycle consists of planning, action, observation, and reflection stages. Data collection techniques include observation, student learning interest questionnaires, and documentation. The results showed that the application of the PjBL model gradually improved students' learning interest from cycle I to cycle II. In cycle I, the percentage of students with high interest reached 62.5%, while in cycle II it increased to 87.5%. Student learning outcomes also improved, with classical completeness from 66.7% in cycle I to 91.7% in cycle II. Thus, the application of the PjBL model proved effective in improving students' interest and learning outcomes on Three-Dimensional Shapes material in grade IV of SD Negeri 1 Galala, Ambon City.]]>
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