Afnita Simanjuntak, - and Tatang Herman, - and Endang Cahya Mulyaning, - (2025) ANALISIS KEMAMPUAN BERPIKIR KRITIS MATEMATIS SISWA KELAS VIII DALAM MENYELESAIKAN MASALAH TEOREMA PYTHAGORAS DITINJAU DARI SELF-EFFICACY. S1 thesis, Universitas Pendidikan Indonesia.
Abstract
Kemampuan berpikir kritis matematis adalah kemampuan siswa dalam menyelesaikan masalah-masalah matematis melalui kegiatan mengumpulkan berbagai macam informasi yang diketahuinya kemudian membuat kesimpulan yang evaluatif dari perolehan informasi tersebut. Kemampuan berpikir kritis matematis siswa dipengaruhi oleh banyak faktor, salah satunya adalah faktor internal atau yang berasal dari diri siswa sendiri yaitu yang berkaitan dengan aspek psikologis self-efficacy. Penelitian ini bertujuan untuk mendeskripsikan bagaimana self-efficacy dan kemampuan berpikir kritis matematis siswa serta mendeskripsikan bagaimana kemampuan berpikir kritis matematis siswa kelas VIII jika ditinjau dari self-efficacy. Penelitian ini juga akan menunjukkan apa saja kesulitan yang dialami siswa dalam menyelesaikan masalah teorema Pythagoras serta memberikan solusi alternatif yang dapat dimanfaatkan untuk meningkatkan kemampuan berpikir kritis matematis siswa kelas VIII SMP. Subjek penelitian ini adalah siswa kelas VIII di salah satu SMP Negeri di Kota Bandung yang melibatkan 31 orang. Penelitian ini menggunakan pendekatan kualitatif dengan metode studi kasus. Instrumen yang digunakan dalam pengumpulan data penelitian ini adalah instrumen berupa tes kemampuan berpikir kritis matematis, angket self-efficacy, dan pedoman wawancara. Hasil penelitian menunjukkan terdapat 6 orang siswa yang memiliki kemampuan berpikir kritis matematis kategori tinggi, lalu 23 siswa yang memiliki kemampuan berpikir kritis matematis kategori sedang, sedangkan hanya terdapat 2 siswa yang memiliki kemampuan berpikir kritis matematis kategori rendah. Terdapat 5 siswa yang memiliki self-efficacy kategori tinggi, 20 siswa memiliki self-efficacy sedang, dan 6 siswa memiliki self-efficacy kategori rendah. Siswa dengan kategori self-efficacy tinggi mampu memenuhi hampir seluruh indikator berpikir kritis matematis. Siswa dengan kategori self-efficacy sedang mampu memenuhi indikator interpretasi, indikator evaluasi, dan indikator inferensi. Siswa dengan kategori self-efficacy rendah hanya mampu memenuhi indikator menginterpretasi. Kesulitan yang dialami oleh siswa kategori tinggi hanya terletak pada kurangnya kesimpulan, selanjutnya siswa dengan kategori self-efficacy sedang belum mampu mengidentifikasi keterkaitan antara pernyataan-pernyataan, pertanyaan-pertanyaan, dan konsep-konsep yang diberikan dalam soal. Siswa dengan kategori self-efficacy rendah belum mampu membuat pemodelan matematika pada setiap soal, belum mampu melakukan evaluasi atas informasi yang diperoleh dalam soal, hingga tidak dapat membuat kesimpulan. Solusi alternatif meningkatkan kemampuan berpikir kritis matematis adalah guru dapat menggunakan strategi pembelajaran berdiferensiasi. Strategi ini dirancang dengan menyesuaikan kebutuhan siswa. Mathematical critical thinking skills are the ability of students to solve mathematical problems through the activity of collecting various kinds of information that they know and then making evaluative conclusions from the acquisition of this information. Students' mathematical critical thinking skills are influenced by many factors, one of which is internal factors or those that come from the students themselves, namely those related to the psychological aspect of self-efficacy. This study aims to describe how the self-efficacy and mathematical critical thinking skills of students and describe how the mathematical critical thinking skills of grade VIII students when viewed from self-efficacy. This research will also show what difficulties students experience in solving the problem of the Pythagorean theorem and provide alternative solutions that can be used to improve the mathematical critical thinking skills of grade VIII junior high school students. The subject of this study is grade VIII students at one of the State Junior High Schools in the city of Bandung involving 31 people. This study uses a qualitative approach with a case study method. The instruments used in the collection of data for this study were instruments in the form of mathematical critical thinking ability tests, self-efficacy questionnaires, and interview guidelines. The results of the study showed that there were 6 students who had high category of mathematical critical thinking skills, then 23 students who had medium category mathematical critical thinking skills, while there were only 2 students who had low category mathematical critical thinking skills. There were 5 students who had high category self-efficacy, 20 students had moderate self-efficacy, and 6 students had low category self-efficacy. Students with high self-efficacy categories are able to meet almost all indicators of mathematical critical thinking. Students with moderate self-efficacy categories are able to meet interpretation indicators, evaluation indicators, and inference indicators. Students with low self-efficacy categories were only able to meet the interpreting indicators. The difficulty experienced by students in the high category only lies in the lack of conclusions, then students with the medium category of self-efficacy are not able to identify the relationship between the statements, questions, and concepts given in the question. Students with low self-efficacy categories have not been able to make mathematical modeling on each question, have not been able to evaluate the information obtained in the problem, and are unable to make conclusions. An alternative solution to improve mathematical critical thinking skills is for teachers to use differentiated learning strategies. This strategy is designed by adapting to the needs of students.
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| Item Type: | Thesis (S1) |
|---|---|
| Additional Information: | https://scholar.google.com/citations?hl=en&user=rkaFMz0AAAAJ ID SINTA Dosen Pembimbing: Tatang Herman: 5986217 Endang Cahya: 6121877 |
| Uncontrolled Keywords: | Kemampuan berpikir kritis matematis, Self-efficacy, Teorema Pythagoras. Mathematical critical thinking ability, Pythagorean Theorem, Self-efficacy. |
| Subjects: | L Education > L Education (General) L Education > LB Theory and practice of education Q Science > QA Mathematics |
| Divisions: | Fakultas Pendidikan Matematika dan Ilmu Pengetahuan Alam > Program Studi Matematika - S1 > Program Studi Pendidikan Matematika |
| Depositing User: | Afnita Simanjuntak |
| Date Deposited: | 19 Aug 2025 03:28 |
| Last Modified: | 19 Aug 2025 03:28 |
| URI: | http://repository.upi.edu/id/eprint/135614 |
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