<![CDATA[This Classroom Action Research (CAR) aims to improve students' learning outcomes in integer arithmetic operations through the use of slide rules at MTs Nahdlatuth Thalabah Kesilir. This research was conducted in two cycles, with the first cycle focusing on teaching addition and subtraction of integers, while the second cycle discussed multiplication and division. This study used pre-tests and post-tests to measure students' progress, along with observation and reflection on the learning process. The results showed a significant increase in students' understanding of addition and subtraction, with an increase in their average test scores. However, challenges arose when using slide rules for multiplication and division, especially for negative integers. In the second cycle, the use of peer learning, verbal explanations, and group work helped improve students' understanding and participation. Overall, this study concluded that slide rules, when combined with other teaching strategies, were effective in improving students' learning outcomes, especially in basic integer arithmetic operations]]>
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