This research aimed to describe the thinking process of students in solving the system of linear equations based on Polya stages. This study was a descriptive qualitative research involving six Year 10 students who are selected based on the teacher's advice and the initial mathematical ability categories, namely: (1) Students with low initial mathematics ability, (2) Students with moderate initial mathematics ability, and ( 3) students with high initial mathematics ability categories. The results indicated that students with low initial mathematical ability category were only able to solve the two-variable linear equation system problems. Students in the medium category of initial mathematics ability and students in the category of high initial mathematics ability were able to solve the problem in the form of a system of linear equations of two variables and a system of three-variable linear equations. However, students found it challenging to solve problems with complicated or unusual words or languages.
Penelitian ini bertujuan untuk mendeskripsikan pola argumentasi siswa pada tingkat kemampuan yang berbeda yaitu tinggi, sedang dan rendah. Penelitian ini termasuk penelitian kualitatif deskriptif dengan melibatkan 3 siswa X Jurusan Tata Boga 1 yang terdiri dari 2 perempuan dan 1 laki-laki. Pada penelitian ini pengumpulan data menggunakan 2 soal tes (soal benar salah dan soal cerita) dan dibantu dengan wawancara untuk memastikan jawaban siswa. Alat analisis yang digunakan untuk menganalisis pola argumentasi siswa adalah gabungan antara pola argumentasi Toulmin dan pola argumentasi Mc. Neill & Krajcik. Hasil penelitian menunjukan bahwa siswa dengan tingkat kemampuan tinggi memilik pola argumentasi claim, evidence, reasoning dan rebuttal untuk soal 1, sedangkan pada soal 2 siswa memiliki pola data, claim, evidence dan reasoning. Pada siswa dengan tingkat kemampuan sedang, siswa memiliki pola argumentasi claim, evidence dan reasoning untuk soal 1, sedangkan pada soal 2 siswa memiliki argumentasi data, claim, evidence dan reasoning. Pada siswa dengan tingkat kemampuan rendah, siswa memiliki pola argumentasi claim, evidence, reasoning untuk soal 1, sedangkan untuk soal 2 siswa memiliki pola argumentasi data, claim, evidence dan reasoning.
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