<![CDATA[This study aimed to improve students' learning interest and mathematical representation ability through the implementation of the Problem Based Learning (PBL) model assisted by the Maple application on quadratic function material. This research employed Classroom Action Research conducted at SMA Negeri 9 Mataram involving 32 students of class X-3. The research was carried out in one cycle consisting of planning, action, observation, and reflection stages. Data were collected through observation, questionnaires, tests, and documentation and were analyzed using descriptive quantitative techniques. The results showed that teacher activity during the learning process reached 100% and was categorized as very good, while student activity reached 93.75% and was also categorized as very good. Students' learning interest showed positive results, with 87.5% of students categorized as having very high interest and 12.5% categorized as having high interest. Students' mathematical representation ability also improved, as indicated by a classical learning mastery percentage of 87.5%, with 28 out of 32 students achieving mastery. Based on these findings, it can be concluded that the implementation of Problem Based Learning assisted by the Maple application can improve students' learning interest and mathematical representation ability in quadratic function material.]]>
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