Student Mathematical Problem Solving Analysis in Polya Stages based Newman Error

摘要

This study aimed to analyze the errors of students in mathematical problem solving through thinking structure. The study method is a qualitative descriptive involving 28 students of eight grade class in SMP PGRI I Wagir who have received linear system with two variables material. Students are given two linear system with two variables problem. Polya problem solving process stages on the linear system with two variables problem analyzed with student mind map and Newman error. The results showed that the students' fault are reading error at understanding the problem stage, comprehension error at understanding the problem stage, comprehension error at understanding the problem stage, transformation error at designing the settlement of the problem stage, process skill error at working solve plan stage, encoding error at checking back stage. Mistakes made by students should be able to be a reference educators in improving learning activities ongoing or imminent..