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All Journal (JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING SJME (Supremum Journal of Mathematics Education)
Avip, Bambang
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Education Mathematics Other

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Application of Newman’s Error Analysis to Identify Students’ Errors in Solving Fraction Problems Payung, Zatman; Kusumah, Yaya Sukjaya; Mulyaning, Endang Cahya; Avip, Bambang
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 2 (2025): VOLUME 8 NUMBER 2, JUNE 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i2.27320

Abstract

Mathematics is a subject that has been taught since elementary school with the aim of training students to think critically, logically, systematically, and solve problems. In fact, many students experience difficulties in learning mathematics, especially in fractional material This study aims to identify mistakes made by elementary school students in solving fractional problems using Newman's Error Analysis (NEA). Through a descriptive qualitative approach, this study analyzes the results of student work on fractional questions based on five stages of NEA: reading error, comprehension error, transformation error, process skills error, and encoding error). Data was collected through written tests and interviews, involving students from UPI Laboratory Elementary School, Pelita Bangsa Elementary School, and SDN 272 Sukasari. Student errors are then grouped by NEA stages to identify the most mistakes made by students. The results of the study showed that students made mistakes at all stages of the NEA. The most common mistakes experienced by students are at the comprehension error and process skill error stages. There are still many students who are not able to represent fractions with pictures and students also still make many mistakes in the fraction operation process. Based on the results of the research, it was concluded that students still had difficulties in fractional material by seeing the mistakes made by students when working on fractional problems. It is necessary to improve students' conceptual understanding and procedural skills in fractional materials.
Efektifitas Project Based Learning-STEM dan Pemecahan Masalah Matematis Siswa pada Materi Trigonometri Priatna, Nanang; Avip, Bambang; Mulyati Mustika Sari, Rika
SJME (Supremum Journal of Mathematics Education) Vol 6 No 2 (2022): Supremum Journal of Mahematics Education
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Singaperbangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35706/sjme.v6i2.6588

Abstract

The purpose of this study was to analyze the effectiveness of Project Based Learning-STEM (PjBL-STEM) associated with the variable Mathematical Problem Solving Ability (KPM) on trigonometric material. The research method uses a quasi-experimental design with Nonequivalent Control Group Design. The problem-solving abilities studied include: understanding the problem, planning for completion, completing according to plan, re-examining the calculation results. The results and conclusions of this study are (a) the effectiveness of the learning process of teachers and students can be categorized as good based on the average results on the observation sheet that has been assessed by the observer; (b) based on independent t-test there are differences in the improvement of students' mathematical problem solving abilities who receive STEM-based Project Based Learning (PjBL-STEM) learning with conventional learning, where STEM-based Project Based Learning (PjBL-STEM) learning has an average score N-gain 0.53 higher than conventional learning with an average N-Gain 0.31. Keywords: Project Based Learning; STEM; Problem Solving
Co-Authors Endang Cahya Mulyaning A. Mulyati Mustika Sari, Rika Nanang Priatna Yaya S. Kusumah Zatman Payung