Nurendah Yulianti
Universitas Suryakancana

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Analisis kesalahan mahasiswa dalam menyelesaikan soal pada materi statistika berdasarkan teori Newman Jelyani Feronika; Nurendah Yulianti; Sarah Inayah; Ahmad Lutfi; Husnul Khatimah Rusyid; Ahmad Mukhibin
Journal on Mathematics Education Research (J-MER) Vol 4, No 2 (2023): November
Publisher : Departemen Pendidikan Matematika, FPMIPA, UPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/j-mer.v4i2.65087

Abstract

The purpose of this research is to describe the types of mistakes made by students in solving problems based on Newman's theory on statistical material. The type of research used is descriptive research with a quantitative approach. The subjects of this study consisted of 9 Level 1 Mathematics Education students at Suryakancana University. The data collection technique in this study was a written test, with a test instrument consisting of 3 statistical questions in the form of descriptions. The percentage of types of errors made by students at the stage of reading the problem was found to be 20%, comprehension the problem was 20%, transformation was 20%, processing skills was 20%, and encoding was 20%. The types of errors in this study were analyzed using Newman's theory, namely 1) Errors in Reading Problems, 2) Errors in Understanding Problems, 3) Errors in Transformation, 4) Errors in Process Skills, and 5) Errors in Writing Final Answers. Of the 9 students it was found that the most common types of mistakes made by students in solving statistical problems were errors at the stage of understanding the problem and encoding errors.
Improvement of The Ability of Mathematical Creative Thinking through Pace-Geogebra Learning in Terms of Student Self-Regulated Learning Nurendah Yulianti; Ari Septian; Rani Sugiarni
PRISMA Vol. 14 No. 2 (2025): PRISMA
Publisher : Universitas Suryakancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35194/jp.v14i2.5577

Abstract

The ability of mathematical creative thinking is essential for students to possess, but in reality, the level of mathematical creativity in Indonesia remains comparatively low. This study aims to find out if learning with PACE-GeoGebra helps improve students' mathematical creative thinking abilities and to understand how self-regulated learning relates to the improvement of these abilities through PACE-GeoGebra. Quasi-experimental research methodology is employed. The study uses a non-equivalent comparison group design. All of the 10th graders enrolled in one of Cianjur's high schools for the 2024–2025 school year make up the study's population. Two classes—classes X-E and X-F—were chosen as samples from the population using a purposive sampling technique. While the control group employed the standard learning model, the experimental group employed the PACE-GeoGebra learning model. Tests and questionnaires with information on quadratic functions were the tools utilized. Using the two-sample mean equality test, data analysis was done on the average gain index between the two sample classes. The research results show that (1) there is a significant difference in the improvement of mathematical creative thinking abilities between students who use the PACE-GeoGebra approach and students who use conventional learning. (2) There is a correlation between student self-regulated learning and the improvement of mathematical creative thinking skills through PACE-GeoGebra learning.