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All Journal Mahir : Jurnal Ilmu Pendidikan dan Pembelajaran Relevan : Jurnal Pendidikan Matematika
Lubis, Marasamin
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Education Mathematics

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ANALISIS KESALAHAN SISWA DALAM MENYELESAIKAN SOAL CERITA MATEMATIKA BERDASARKAN METODE NEWMAN Dalimunthe, Sri Ulfah Afriani; Lubis, Marasamin; Ammamiarihta
Relevan : Jurnal Pendidikan Matematika Vol 4 No 6 (2024): Relevan : Jurnal Pendidikan Matematika
Publisher : Yayasan Amanah Nur Aman

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Abstract

Penelitian ini adalah penelitian yang menggunakan metode pendekatan desriptif kualitatif yang bertujuan untuk menggambarkan secara utuh dan mendalam mengenai sesuatu yang kita teliti atau kita amati.Salah satu keterampilan yang harus dikuasai siswa adalah menyelesaikan soal cerita matematika. Hasil penelitian tentang kesalahan-kesalahan yang dilakukan oleh para siswa tersebut dalam menyelesaikan soal cerita matematika adalah kesalahan dalam membaca soal dilakukan sebanyak 0 kesalahan, kesalahan dalam memahami soal dilakukan sebanyak 28 kesalahan, kesalahan dalam mentransformasi soal dilakukan sebanyak 38 kesalahan, kesalahan dalam memproses soal dilakukan sebanyak 38 kesalahan dan kesalahan dalam penarikan kesimpulan dilakukan sebanyak 38 kesalahan. Terdapat 4 jenis kesalahan dari 5 jenis kesalahan dalam metode Newman yang dilakukan oleh peserta didik kelas VIII SMP Negeri 2 Angkola Barat yaitu kesalahan dalam memahami soal, kesalahan dalam mentransformasi soal, kesalahan dalam memproses soal, dan kesalahan dalam penarikan kesimpulan. ABSTRACT This study employs a descriptive qualitative approach aimed at providing a comprehensive and in-depth understanding of the subject being researched or observed. One of the essential skills students must master is solving word problems in mathematics. The research findings regarding the errors made by students in solving mathematical word problems show the following: no errors were made in reading the problem, 28 errors occurred in understanding the problem, 38 errors were made in transforming the problem, 38 errors happened in processing the problem, and 38 errors occurred in drawing conclusions. Out of the five types of errors in the Newman method, four types were identified among the eighth-grade students at SMP Negeri 2 Angkola Barat: errors in understanding the problem, errors in transforming the problem, errors in processing the problem, and errors in drawing conclusions.
Development of Indonesian Realistic Mathematics Education-Based Learning Module Awalimahfuzoh, Rafiqa; Lubis, Marasamin; Siregar, Tanti Jumaisyaroh
Mahir : Jurnal Ilmu Pendidikan dan Pembelajaran Vol 1 No 2 (2022): Mahir : Jurnal Ilmu Pendidikan dan Pembelajaran
Publisher : Yana Research

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Abstract

This study aims to develop teaching materials in the form of Mathematics Modules Based on Indonesian Realistic Mathematics Education (PMRI) on the material of sequences and series in class VIII. The quality of the developed product is assessed based on aspects of the validity, practicality and effectiveness of the developed module. This research method uses the type of Research and Development (Research and Development) using a research design from the Borg and Gall procedure. The subjects of this study were students of class VIII Mts Negeri Labuhanbatu Utara, totaling 20 students. The results obtained are that the development of this module can improve student learning outcomes and understanding. The results of the validity of this module were tested from the validity of media experts and material experts getting an average score of 92.85% in the "very valid" category. Furthermore, the results of the practicality of this module were tested with student and teacher response questionnaires obtained an average score of 88.4% in the "very practical" category. In addition, the results of the effectiveness of the module product are tested with the Pretest - Posttest questions which are then calculated by the N - Gain Score test, while the students' average pretest score is 49.5 and the students' Posttest average score is 83.5, then the results of the N-Gain Score is 70.1% with the category "quite effective". So that the development of learning modules based on the Indonesian Realistic Mathematics Education Approach (PMRI) is said to be valid, practical and effective for use in class VIII SMP/MTS.
Co-Authors Ammamiarihta Ammamiarihta Awalimahfuzoh, Rafiqa Dalimunthe, Sri Ulfah Afriani Siregar, Tanti Jumaisyaroh