<![CDATA[This study aims to examine the improvement of students’ mathematics learning outcomes on the topic of Measures of Data Location through the implementation of the peer tutoring method. This study employed Classroom Action Research conducted at SMA Negeri 1 Tapa in the 2023/2024 academic year, involving 28 students of class X-4 as research subjects. Data were collected through observation and tests using teacher activity observation sheets, student activity observation sheets, and essay test instruments. The results showed that the implementation of the peer tutoring method was effective in improving students’ learning outcomes. The percentage of teacher activity in the preliminary activities increased from 70.83% to 95.83%, in the main activities from 65.62% to 90.62%, and in the closing activities from 68.75% to 87.5%. Student activity also improved, with preliminary activities increasing from 80% to 90%, main activities from 60% to 90%, and closing activities from 58.3% to 83.3%. In addition, students’ learning mastery increased from 53.6% in Cycle I to 85.7% in Cycle II. Based on the findings, it can be concluded that the implementation of the peer tutoring method improves both learning activities and students’ mathematics learning outcomes.]]>
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