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ANALISIS KESALAHAN SISWA DALAM MENYELESAIKAN SOAL OPERASI PECAHAN BENTUK ALJABAR SMP Jesisca L T Mangi; Elsy Senides H Taunu; Mega Retno Wulandari; Anggriati Ledu Ngaba; Yuliana Tamu Ina Nuhamara; Mayun Erawati Nggaba
Prima Magistra: Jurnal Ilmiah Kependidikan Vol. 3 No. 1 (2022): Volume 3 Nomor 1 Tahun 2022
Publisher : Program Studi PGSD Universitas Flores

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (970.671 KB) | DOI: 10.37478/jpm.v3i1.1404

Abstract

According to the national examination (UN) scores for Junior High School in East Sumba in 2019, it can be seen that the percentage of student’s math scores based on the comparison of test scores with graduation standards is still very low. In view of the problem, studies are conducted to describe a student’s error, describing the factors that cause students to make mistakes in solving problems, and planning follow-up actions to minimize student errors when operating addition and subtraction of algebraic fraction. This type of research is qualitative approach. The technique of determining the student’s research subject uses the cluster sampling technique with sample 5 students. The technique of collecting data is done by writing tests, interviews and documentary studies. The results showed that according to Newman’s five types of errors, student made 5 types of errors, and the most common mistakes were in encoding error of 1,53%, then processing skill error 2,33%; transformation error 2,5%; comprehension error and reading error 3,1%.
Student’s Algebraic Thinking Ability in Solving Mathematical Problems Based Misconceptions Anggriati Ledu Ngaba; Nuriana Rachmani Dewi; St. Budi Waluya
Journal of Educational Sciences Vol 7, No 3: July 2023
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jes.7.3.p.465-473

Abstract

Mastering algebraic concepts and skills has been one of the demands in the Indonesian curriculum for the past few decades. Teaching algebraic concepts and skills is one of the materials taught from the junior high school to university level. Therefore, it is mandatory for pre service mathematics teacher students to master and even fluently use algebraic concepts in order to develop students' algebraic thinking skills. Thus, this study aims to understand and obtain a description of students' algebraic thinking abilities and misconceptions in solving problems. This research using descriptive qualitative. Analysis was conducted using tests and in-depth interviews with students who had taken linear algebra courses in semester 3 of the Mathematics Education Study Program at private university in NTT. Student’s algebraic thinking skills in solving problems were analyzed using Kieran's (2004) indicators consisting of: generational activities, transformational activities, and global meta-level activities. The results of the research show that…. In generational activities, students in the low, medium, and high categories have misconceptions. In transformational activities and global meta-level activities, misconceptions are only carried out by low category students.
Co-Authors Bima, Stevvileny Angu Elsy Senides Hana Taunu Eryani Hamapinda Iona Lisa Ndakularak Irna Natalis Sanit Itha Priyastiti Jesisca L T Mangi Marthinus Luta Lapu Mega Retno Wulandari Mega Retno Wulandari Nggaba, Mayun Erawati Nuriana Rachmani Dewi Randjawali, Erwin St. Budi Waluya Yuliana S. Eko Yuliana Tamu Ina Nuhamara Yuliana Tamu Ina Nuhamara