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.