Analysis of mathematical problem solving based on stages Newman in equality and inequality one variable

Abstract

Problem-solving is one of the purposes of learning mathematics. According to Newman, problem-solving consists of five stages, (1) reading, (2) comprehension, (3) transformation, (4) process skill and (5) encoding. The purpose of this study is to analyse students' problem-solving abilities based on Newman's steps for the topic of linear equality and inequality in one variable. The type of this research is qualitative descriptive. The subjects of this study were 8 students from 8th grade at SMP Negeri 2 Kebakkramat, which was taken by purposive sampling. The data was collected by test and interview. The results of this study are (1) the stage of reading, there were 16.67% students who could not write a complete mathematical sentence (2) the stage of understanding, there were 4,17% students could not write the question of the problem, (3) the stage of transforming, there were 75% students who still cannot inform the steps of the plan of completion that will be used in writing, (4) the stage of process skills, 33.33% students who made mistakes in understanding the concept and changing mathematical sentences, (5) the stage of encoding, 8.33% students who did not write the conclusion.