<![CDATA[The aim of this project is to implement a Problem Based Teaching Approach (PBL) to improve the academic performance of elementary school pupils in mathematics. The methodology used is Class Action Research (PTK) implemented in two cycles. The cycle consists of four stages: planning, implementation, observation, and reflection. The study participants were students enrolled in class V B at SD 112 Palembang, with a total of 26 students. Information collected through inspection and observation. Research findings suggest that applying the PBL approach can improve mathematical learning performance. The average student score in Cycle I was 66.8, with an accuracy rate of 42%. After upgrading and re-implementing in the Cycle II, the average score rose to 86.8, accompanied by an accurate rate of 88%. This meant a 46% increase in student learning outcomes. These findings suggest that the use of a Problem Based Learning (PBL) approach has proven to be effective in improving mathematical learning performance. This paradigm not only facilitates the learners in solving problems, but also increases the meaning and relevance of learning to everyday life. Active participation of learners in the learning process increases their motivation and improves their learning outcomes. Keywords: learning outcomes, mathematics, Problem Based Learning (PBL)]]>
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