ANALISIS KESALAHAN SISWA DALAM MENYELESAIKAN SOAL CERITA MATERI HIMPUNAN PADA SISWA KELAS VII SMP SWASTA AL-WASHLIYAH 8 MEDAN TAHUN AJARAN 2017/2018

Abstract

This research is aimed to know: (1) The kind of error students do insloving The Material of Reading Exercise of Himpunan based on Newman Procedure in class VII of SMP Swasta Al-Washliyah 8 Medan, (2) The causes of the students error insolving The Material of Reading Exercise of Himpunan based on Newman Procedure in class VII of SMP Swasta Al-Washliyah 8 Medan.This research is qualitative research. The subject of the research is the students of seven grade SMP Swasta Al-Washliyah 8 Medan Academic Year 2017/2018. The choice of this research subject is by taken 6 of 34 for students of VII-1 class, each consist of 2 higher level group, 2 medium level group, and 2 lower level group. This grouping is based on the ranks of the student. Then, are chosen 2 studentswith the lowest correct answer on each group. Data collection procedure on this research use the method of the test and interviewing. Every subject research was interviewed of their work result on Material of Reading Exercises of Himpunan. Data analysis of this research use Miles and Huberman Model consist of data reduction, data presentation, and conclusion. The validity test of the data in this study was carried out by Triangulation Technique.The results showed that students made mistake in the type of Comprehension Error, Transformation Error, and Process Skill Error. This error can be seen from the following percentage: Comprehension Error occurs as much as 14,71%, Transformation Error occurs as much as 43,38% (this error is the most mistakes made by students), and Process Skill occurs as much as 1,47%. The cause of the error is not being able to change it into the symbol of Himpunan. They are not used to write the questions, unable to plan a solution for the problem, wrong in determining the right formula for the question given, not realize their mistakes in the count of operations performed, and can not count operations correctly.