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Maryono, Iyon
Prodi Pendidikan Matematika, UIN Sunan Gunung Djati Bandung
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Characteristics of student errors in solving geometric proof problems based on Newman's theory Syifa Afidah Nurul Arifin; Iyon Maryono
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 11 No 3 (2023)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v11i3.15981

Abstract

This study aims to determine the characteristics of student errors in solving geometry proof based on Newman's Theory. The research method used is a qualitative research method with a phenomenographic approach. This research was conducted to prevent students from repeating mistakes in advanced geometry courses. The types of errors based on Newman's Theory used in this study are: (1) reading errors in the representation of mathematical symbols; (2) comprehension errors of the proof problem; (3) transformation errors of the proof problem; (4) process skills errors of the proof problem; and (5) encoding errors. The subjects of this study were 15 students, and the instruments used were interview guidelines and documentation. The results of this study are reading errors in the representation of mathematical symbols with an average of 15.81%, with error characteristics that students do not write geometry symbols according to the rules. Comprehension errors of the proof problem with an average of 4.78%. Transformation errors of the proof problem with an average of 26.84%. Process skill errors of proof problems with an average of 29.04%. Encoding errors with an average of 23.53%.
PENERAPAN MODEL PEMBELAJARAN PROJECT, ACTIVITY, COOPERATIVE, EXERCISE (PACE) UNTUK MENINGKATKAN PEMAHAMAN MATEMATIS DAN SELF-EFFICACY SISWA Yossi Amanda; Iyon Maryono; Riva Lesta Ariany
TRANSFORMASI Vol 9 No 2 (2025): TRANSFORMASI: Jurnal Pendidikan Matematika dan Matematika
Publisher : Program Studi Pendidikan Matematika FMIPA Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/tr.v9i2.6038

Abstract

The study aims to analyze the improvement of students’ mathematical understanding and self-efficacy after learning with the PACE model. This study used a quasi-experimental method, with a population of all students from ten eighth-grade students of a junior high school in Bandung in the 2024/2025 academic year. The sample was determined purposively by two classes. Data collection was carried out using test instruments and questionnaires. Data analysis used a t-test on test results and descriptive analysis on self-efficacy scores. The results showed that the improvement of mathematical understanding of students who received learning with the PACE model was better than students who learned in conventional classes. This can be seen from the N-Gain value in the experimental class of 0.304 (medium category) and the N-Gain in the control class of 0.124 (low category). The level of self-efficacy of students in the experimental class increased by 66.86 after learning with the PACE model. Thus, the PACE model is said to be effective in improving students’ mathematical understanding and self-efficacy. Further research is expected to identify the relationship between variables.
Meningkatkan kemampuan penalaran matematis dan self-regulated learning melalui model CinQASE Rina Noor Safaat .; Iyon Maryono; T. Tutut Widiastuti A
AKSIOMA: Jurnal Matematika dan Pendidikan Matematika Vol. 16 No. 2 (2025): AKSIOMA: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/bq54ct82

Abstract

Self-regulated learning and mathematical reasoning ability are two fundamental competencies that need to be optimized in the context of mathematics learning. This study aims to strengthen students’ mathematical reasoning ability while mapping their level of self-regulated learning through the implementation of the Collaborative in Questioning, Analyzing, Synthesizing, and Evaluating (CinQASE) learning model. The study employed a Nonequivalent Control Group Design with seventh-grade students from a junior high school as the research subjects, involving two randomly assigned classes. The instruments used were a mathematical reasoning ability test and a Self-Regulated Learning (SRL) questionnaire in the form of statements with a Likert scale, both of which met high validity and reliability criteria. The findings revealed a statistically significant difference in the improvement of mathematical reasoning ability between students in the experimental and control classes. The results also indicated that the self-regulated learning of students who participated in the CinQASE learning model was categorized as moderate. These findings suggest that the CinQASE model can serve as a strategic option to optimize.
Penerapan model pembelajaran reading, mind mapping, sharing (RMS) berbantuan desmos untuk meningkatkan kemampuan berpikir kritis dan self concept siswa Rika Azahra; Iyon Maryono; T. Tutut Widiastuti A
AKSIOMA: Jurnal Matematika dan Pendidikan Matematika Vol. 16 No. 2 (2025): AKSIOMA: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/j0afdw88

Abstract

This study emerged due to the significant need to improve students' critical thinking skills and self-concept. The purpose of this study was to analyze the effectiveness of the Reading, Mind Mapping, and Sharing (RMS) learning model assisted by Desmos in improving critical thinking skills and self-concept. The research method used a quasi-experiment with a non-equivalent control group design. The research sample consisted of two classes randomly selected from a public junior high school in Purwakarta. The main instruments were a valid and reliable critical thinking skills test and a questionnaire to measure self-concept. The results showed that students who participated in Desmos-assisted RMS learning obtained an average posttest score of 45.6 for critical thinking skills, which was higher than the conventional class score of 13.3. The N-Gain value of the Desmos-assisted RMS class was 0.21 (moderate category), while the conventional class was 0.14. The t-test showed a value of  (2.741) ≥  (1.692), indicating a significant increase in critical thinking skills, with better results than conventional learning. In addition, the self-concept of students in the RMS class was in the moderate category with a range of 2.79 ≤ X < 3.03 and showed a positive response. Based on these findings, the Desmos-assisted RMS model can be one option for creating more active learning and supporting the development of students' critical thinking.
Co-Authors Abdul Rahman Sidik Maryono Adi Julianto Kusnadi Akhmad Nurul Mutamam Aulia Putri Timur Juariah Juariah Muhammad Tandhimul Haq Nuraida, Ida Nurul Hikmah Pebiyola Siti Wulandari R. Poppy Yaniawati Rahayu Kariadinata Rahayu, Yayu Nurhayati Rifa Rizqiyani Rika Azahra Rina Noor Safaat . Riva Lesta Ariany Rosi Oktaviani Saputri Siska Amanda Lucita Dewi Siti Rohimah Syaf, Agus Hikmat Syifa Afidah Nurul Arifin T. Tutut Widiastuti, A Tutut Widiastuti Anisa Wati Susilawati Yossi Amanda