Analysis of mathematical problem solving ability in solving realistic reasoning (mnr) type of mathematical problems reviewed from brain dominance

Abstract This study aims to analyze the mathematical problem solving ability of high school students in solving the type of Realistic Mathematical Education (RME) problems in terms of brain dominance. This research uses qualitative research with descriptive research methods. The subjects in the study were high school class XI students in one of the schools in Tasikmalaya Regency. The subject selection technique used purposive sampling, the data was collected by giving a brain dominance questionnaire and working on mathematical problem solving ability test questions with Realistic Mathematics Nalaria problem types. The results showed that students with left brain dominance had good mathematical problem solving ability in solving Realistic Mathematical Education (RME) problem types and students with right brain dominance had poor mathematical problem solving ability in solving Realistic Mathematical Education (RME) problem types. Abstrak Penelitian ini bertujuan untuk menganalisis kemampuan pemecahan masalah matematis peserta didik SMA dalam menyelesaikan tipe soal Matematika Nalaria Realistik (MNR) ditinjau dari dominasi otak. Penelitian ini menggunakan penelitian kualitatif dengan metode penelitian deskriptif. Subjek dalam penelitian adalah peserta didik kelas XI SMA di salah satu sekolah di Kabupaten Tasikmalaya. Teknik pemilihan subjek menggunakan purposive sampling, data dikumpulkan dengan pemberian angket dominasi otak dan pengerjaan soal tes kemampuan pemecahan masalah matematis dengan tipe soal Matematika Nalaria Realistik. Hasil penelitian menunjukkan bahwa peserta didik dengan dominasi otak kiri memiliki kemampuan pemecahan masalah matematis yang baik dalam menyelesaikan tipe soal Matematika Nalaria Realistik (MNR) dan peserta didik dengan dominasi otak kanan memiliki kemampuan pemecahan masalah matematis yang kurang baik dalam menyelesaikan tipe soal Matematika Nalaria Realistik (MNR).