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All Journal Jurnal Karya Pendidikan Matematika
Zulkardi _
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Education Mathematics

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EKSPLORASI PENALARAN SISWA DALAM PEMBELAJARAN MENGGUNAKAN SOAL BERKONSEP PMRI TENTANG ARITMATIKA SOSIAL DI SMP Nabila Putri Isamer; Zulkardi _; Ratu Ilma; Ely Susanti
Jurnal Karya Pendidikan Matematika Vol 9, No 1 (2022): Jurnal Karya Pendidikan Matematika Volume 9 Nomor 1 Tahun 2022
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jkpm.9.1.2022.8-14

Abstract

This article aims to examine the reasoning of students in the mathematical study of social arithmetic that focuses on profit or loss. The study is a descriptive study using pmri (Indonesia's realistic math education) that starts with online shopping as a context for both early learning and for profit or loss at the end of learning. The subject of this study is class VII SMP at lubuklinggau. Research shows that the problem with context can help students identify important information on matters about the concept of social arithmetic. The use of context in questions provides reasoning and understanding of the mathematical concepts learned.
ANALISIS KESALAHAN SISWA DALAM MENYELESAIKAN PERSOALAN MATEMATIKA MATERI ALJABAR DENGAN KONTEKS NEW NORMAL Adi Saputro; Zulkardi _; Ratu Ilma; Ely Susanti
Jurnal Karya Pendidikan Matematika Vol 9, No 1 (2022): Jurnal Karya Pendidikan Matematika Volume 9 Nomor 1 Tahun 2022
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jkpm.9.1.2022.1-7

Abstract

This study aims to describe student errors in solving algebraic math problems in a new normal context. This research is a qualitative descriptive study. The subjects in this study were students of class VII A of SMPS Plus Lightning Literacy TP. 2021/2022. Test and interview methods were used as data collection methods. In order to obtain valid data, the researcher first checked the validity of the data using the time triangulation method. After obtaining valid data, the researcher analyzed the data and drew conclusions. From the results of the study, it was found that 1) Subject-A made 6 errors, namely: an error in writing a number symbol, an error in formulating an algebraic form, an error in simplifying, an error in carrying out the calculation process (determining the number of boxes) question number 2, an error in carrying out an operation division of integers (determining the number of boxes) question number 3, errors in the calculation process (determining the number of boxes) question number 4; 2) Subject-B made 3 mistakes, the errors were the same as subject-A, except for the error in writing the number symbol.
Co-Authors Adi Saputro Ely Susanti Nabila Putri Isamer Ratu Ilma