Year: 2026 | Month: July | Volume: 13 | Issue: 7 | Pages: 67-74
DOI: https://doi.org/10.52403/ijrr.20260708
Analysis of Students’ Errors in Applying the Newman Procedure at SMKN 2, Kediri City
Erikh Y. Selan1, Suryo Widodo2, Yuni Katminingsih3
1,2,3Department of Mathematics Education, Faculty of Health and Science, Universitas Nusantara PGRI Kediri
Corresponding Author: Suryo Widodo
ABSTRACT
This study was motivated by students’ low ability to solve problems related to the Pythagorean theorem. The study aims to describe the types of errors students make when applying the Pythagorean theorem and their underlying causes using the Newman procedure. The study was conducted at SMKN 2 Kota Kediri using a qualitative descriptive method. The research subjects were 10th-grade students selected based on their ability levels. Data analysis was conducted based on the stages of the Newman procedure, namely: reading errors (0%), comprehension errors (5.56%), transformation errors (5.56%), process skill errors (8.33%), and answer-writing errors (69.44%). The results indicate that the most prevalent errors made by students occurred during the answer-writing stage, followed by errors in understanding the problem and writing the final answer.
Keywords: Analysis, errors, Pythagorean theorem, Newman procedure.
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