<![CDATA[Students' low language skills, particularly in speaking and writing, remain a problem affecting the quality of Indonesian language learning in elementary schools. This study aims to analyze the effectiveness of implementing the Project-Based Learning (PjBL) model in improving students' language skills in Indonesian language learning. This study employed a quantitative approach using classroom action research based on the Kemmis and McTaggart design. The research subjects consisted of 23 students, including 12 male students and 11 female students. The data were collected through observation, tests, and documentation using observation sheets, language skills tests, and learning documentation as the research instruments. The data were analyzed using quantitative descriptive analysis by calculating the mean scores and the percentage of learning mastery to evaluate the achievement of the success indicators in each cycle. The findings showed that the implementation of the PjBL model consistently improved students' language skills in the aspects of listening, speaking, reading, and writing, while also enhancing students' participation, collaboration, and active engagement throughout the learning process. It can be concluded that the PjBL model is effective in improving students' language skills through project-oriented learning and meaningful learning experiences. The findings of this study imply that the PjBL model can be implemented as an alternative innovative learning approach to improve the quality of Indonesian language learning and to continuously develop students' language skills in elementary schools.]]>
