<![CDATA[The purpose of this study was to improve the learning outcomes of grade 4B students at Xin Zhong Elementary School in Surabaya by implementing the Project Based Learning (PjBL) model with mind mapping assistance in the Indonesian subject with the theme "Cultural Diversity in My Country". The type of research used was a quasi-experimental research. The research design was a post-test only control group design. The subjects of the study were 23 grade 4B students at Xin Zhong Elementary School in the 2023-2024 academic year. Data collection techniques were done through observation and tests. The research instruments used were attitude observation checklist sheets, rubrics for assessing presentations and mind mapping information per group, rubrics for assessing individual essays, and observation sheets for the implementation of learning. Data analysis was carried out using descriptive and qualitative statistics. The results of this study showed that all stages of PjBL were carried out well. The results of the attitude assessment observation showed that 87% of students had developed as expected. The observation results on the aspects of mind mapping drawing skills and presentations showed that 100% of students reached the KKTP. The learning outcomes in the formative aspect showed that 91% of students reached the KKTP. The results of student reflection showed that all students felt happy and were able to understand the material that was taught. The conclusion of this study is that the implementation of the PBL model is effective in improving student learning outcomes.]]>
