ANALISIS KESALAHAN SISWA KELAS VIII DALAM MENYELESAIKAN SOAL TEOREMA PYTHAGORAS BERDASARKAN ANALISIS KESALAHAN NEWMAN

This study aims to describe students' errors in solving Pythagorean
theorem problems based on Newman's Error Analysis (NEA). This
study employed a qualitative descriptive approach. The subjects
consisted of two eighth-grade students of SMP Negeri 1 Banawa
Tengah selected through written tests and interviews. The results show
that both students made errors at several stages of NEA, with one
student committing more errors than the other. The dominant errors
occurred at the comprehension, transformation, and process skill
stages. These errors were caused by limited conceptual understanding
of the Pythagorean theorem, carelessness in calculations, and haste in
answering the questions. The findings of this study provide insights for
improving mathematics instruction, particularly in strengthening
students' conceptual understanding and problem-solving skills.