PENINGKATAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA MELALUI MODEL CONTEXTUAL TEACHING AND LEARNING (CTL) PADA MATERI FUNGSI KUADRAT KELAS X.

• Anri Parsaulian Nainggolan

  Program Profesi Guru (PPG), Universitas Cenderawasih

  Author

• Pitriana Tandililing

  Program Profesi Guru (PPG), Universitas Cenderawasih

  Author

• Ellen Ivony Taliak

  Program Profesi Guru (PPG), Universitas Cenderawasih

  Author

This study aims to enhance students' mathematical problem-solving abilities in the quadratic functions topic for Grade X students at SMA YPPK Teruna Bakti by implementing the Contextual Teaching and Learning (CTL) instructional model. This research is a Classroom Action Research (CAR) consisting of two cycles. The instruments used in this research include both test and non-test tools, namely a mathematical problem-solving ability test and observations to measure the improvement in students' mathematical problem-solving skills. Based on the initial test results, 7 out of 36 students, or 19.45%, achieved mastery, with an average mathematical problem-solving ability score of 51.18. In Cycle I, after implementing learning using the Contextual Teaching and Learning (CTL) model, the class average score obtained was 70.50, with the number of students achieving mastery being 24 out of 36 students, or 66.67%. There was an increase in the average score from the initial test to Cycle I by 19.32 points. In Cycle II, the class average score obtained was 82.40, with the number of students achieving mastery being 31 out of 36 students, or 86.12%. There was an increase in the class average score from Cycle I to Cycle II by 11.9 points, and an increase in the number of students achieving mastery by 7 students, from 24 to 31 students. Thus, it can be concluded that based on the criteria for classical learning mastery, this research has achieved the mastery target and is considered successful as it has met the success indicators. Based on the results of this study and several relevant previous studies, it is concluded that the implementation of the Contextual Teaching and Learning (CTL) instructional model can enhance students' mathematical problem-solving abilities.

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