<![CDATA[The project-based learning model or PjBL is learning that provides opportunities for students to work on a project. The purpose of this study was to improve performance and learning outcomes in science class by applying a project-based learning model to fifth grade students who used collaborative research methods for class activities carried out in two learning cycles. Each cycle consists of 4 stages, namely planning, implementation of action, observation and reflection. Data collection techniques and tools in this study were cognitive tests, observation and documentation. The results of observing class activities are: 1) In Cycle I there are still students who are passive in the learning process. After reflecting on the implementation of cycle II, students' learning activities were improved by involving students in experimental projects in natural science subjects with single substances and mixed substances. 2) The learning outcomes of students in Cycle I had a percentage of 78% complete, while in Cycle II the level of completeness increased to 100%. Based on the results of the study it can be concluded that the application of a project-based learning model can increase the activity and learning outcomes of fifth grade students at SDN Jatisobo 03.]]>
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