Analysis of Student Mistakes in Solving Contextual Problems Building Material with Curved Sides (Tube) Based on Kastolan Stages

Abstract

This research aims to find out the mistakes made by students in problems with math subjects about curved side shapes in tube shapes. This research is qualitative research with qualitative data analysis techniques. The subjects in this research were students at Junior High 10th, Cirebon, class 9A with a total of 22 students. Research conducted on students at Junior High 10th, Cirebon to found out the errors that are made by students in solving questions on curved sided geometric material related to the volume and surface area of ​​cylinders, namely conceptual errors, procedural errors and technical errors (according to the Kastolan error stages). Which states that the causes of mistakes that students often make are because students do not understand the questions well, do not master the material, do not know the steps to solve the questions, aren’t careful in working on the questions, and do not write conclusions

Keywords: Error analysis, Geometry, Tube, Kastolan theory

DOI: 10.7176/JEP/15-5-01

Publication date: April 30^th 2024