Abstract
Formulate is the activity of gradually changing the contextual problems presented into a mathematical model. This type of research is a qualitative descriptive study which aims to describe the mistakes of students in solving PISA questions in the formulate category on each content. Subjects taken were students of class VIII at SMP Negeri 2 Krian which consisted of 4 students for 4 PISA content. The criteria of the chosen subject are students who have complete answers, indicate that they understand the questions but are wrong in modeling the problems, variations in errors in the answers, and have openness and fluency in communication. Data collection was carried out by giving 4 PISA questions on the formulate categories for each content and interview. Data were analyzed based on student error indicators in the formulate process. The results showed, in the content of change and relationships, students experienced an error in understanding the problem that was misinterpreting the question, transforming the problem that was wrong in writing the completion procedure, and the process skills were wrong in the calculation process. In the content of space and form, students experience errors in understanding questions, namely incomplete, incomplete mention of information to solve problems and process skills, which is wrong in choosing formulas. In the content of numbers, students experience errors in understanding questions that are misinterpreting information on problems, transforming questions that are wrong in changing sentences in the questions into mathematical form, and process skills that are wrong in the calculation process. In the content uncertainty and data, students experience errors in reading questions that is wrong in reading important words in the problem, transforming questions that are incomplete in writing the completion procedures, and process skills that are wrong in choosing the formula that will be used to solve the problem. Keywords: error analysis, formulating, PISA questions.
Highlights
Volume 9 No 1 Tahun 2020, HAL 73-81 transforming questions that are incomplete in writing the completion procedures, and process skills that are wrong in choosing the formula that will be used to solve problems
The results showed, in the context of change and relationships, students experienced an error in understanding the problem that was misinterpreting the question, transforming the problem that was wrong in writing the completion procedure, and the process skills were wrong in the calculation process
Untuk memperkirakan total luas lantai apartemen (termasuk teras), Anda dapat mengukur ukuran setiap kamar, menghitung luas setiap ruangan kemudian menjumlahkannya
Summary
Berdasarkan hasil survey PISA sejak tahun 2000 sampai 2018 menunjukkan kemampuan literasi matematika siswa Indonesia masih rendah. Pada konten perubahan dan hubungan, siswa mengalami kesalahan dalam memahami soal yaitu salah menafsirkan pertanyaan, mentransformasi soal yaitu salah dalam menuliskan prosedur penyelesaian, dan keterampilan proses yaitu salah dalam proses perhitungan. Pada konten ruang dan bentuk, siswa mengalami kesalahan dalam memahami soal yaitu tidak lengkap tidak lengkap menyebutkan informasi untuk menyelesaikan soal dan keterampilan proses yaitu salah dalam memilih rumus. Siswa mengalami kesalahan dalam memahami soal yaitu salah menafsirkan informasi pada soal, mentransformasi soal yaitu salah dalam mengubah kalimat yang ada pada soal menjadi bentuk matematis, dan keterampilan proses yaitu salah dalam proses perhitungan. Pada konten ketidakpastian dan data, siswa mengalami kesalahan dalam membaca soal yaitu salah dalam membaca kata penting pada soal, mentransformasi soal yaitu tidak lengkap dalam menuliskan prosedur penyelesaian, dan keterampilan proses yaitu salah dalam memilih rumus yang akan digunakan untuk menyelesaikan soal.
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