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All Journal Jurnal Penelitian Pembelajaran Matematika Sekolah Arithmetic : Academic Journal of Math Kognitif: Jurnal Riset HOTS Pendidikan Matematika Journal of Medives: Journal of Mathematics Education IKIP Veteran Semarang
Rum, Ahbi Mahdianing
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Computer Science & IT Education Library & Information Science Mathematics Social Sciences Other

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Analysis of Students Problem-Solving Ability in Solving Improper Integral Problems Hanifah, Hanifah; Rum, Ahbi Mahdianing
ARITHMETIC: Academic Journal of Math Vol. 5 No. 2 (2023)
Publisher : Institut Agama Islam Negeri Curup

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29240/ja.v5i2.6837

Abstract

This study aimed to determine the student’s problem-solving-ability using Polya stages in solving Improper Integral questions in online Integral Calculus Learning through zoom applying Student-Centered Learning. It is very rare to find the research that examines students' problem-solving abilities in solving improper integral problems. The research method used in this study was ex-post facto research. The research subjects were 14 students from class B in the third semester of the Mathematics Study Program FKIP UNIB 2020/2021 getting grades A and A- in Integral Calculus Learning. The analysis in Polya stages consisted of Understanding the Problem (P1); Devising a Plan (P2); Carrying out the Plan (P3); and Looking Back (P4. The instruments used to collect data were improper integral test sheets, analysis guide sheets, and open questionnaires. The result showed the mean score of the student’s problem-solving ability was 74.02. The mean value in each stage: P1 = 79.91; P2 = 79.46; P3 = 72.77; and P4 = 65.18. It was concluded that students already had good abilities in understanding problems and planning solutions.
PENGEMBANGAN LKPD BERBASIS RME PADA MATERI LINGKARAN DI KELAS VIII SMPN 1 KOTA BENGKULU Rum, Ahbi Mahdianing; Susanta, Agus; Rusdi, Rusdi
JP2MS Vol 4 No 3 (2020): Desember
Publisher : Program Studi S1 Pendidikan Matematika FKIP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jp2ms.4.3.425-432

Abstract

Tujuan dari penelitian ini adalah menghasilkan LKPD berbasis RME pada materi lingkaran di SMPN 1 Kota Bengkulu yang memenuhi efektif. Penelitian ini adalah penelitian pengembangan dengan menerapkan 3 tahapan dari model pengembangan 4D, yaitu pendefinisian, perancangan, dan pengembangan. Instrumen penelitian yaitu lembar efektivitas yang meliputi lembar pengamatan aktivitas pendidik, lembar pengamatan aktivitas peserta didik, lembar respon peserta didik, dan tes hasil belajar. Dari hasil penelitian didapatkan bahwa LKPD berbasis RME pada materi lingkaran di Kelas VIII SMPN 1 Kota Bengkulu memuat langkah-langkah sesuai dengan sintaks RME yang membimbing peserta didik untuk menemukan dan memahami konsep-konsep lingkaran, peserta didik dapat menyelesaikan THB dan memperoleh hasil belajar yang tinggi dengan persentase ketuntasan 93,75%. LKPD berbasis RME dapat memaksimalkan aktivitas peserta didik, memotivasi peserta didik dalam belajar, membantu peserta didik memahami materi, serta aktif dalam pembelajaran. Sehingga LKPD berbasis Realistic Mathematics Education yang telah dikembangkan termasuk dalam kategori sangat efektif dengan skor efektivitas 4,56 berdasarkan aktivitas, respon peserta didik, dan hasil belajar peserta didik.
Students' Errors in Solving PISA-Based Mathematical Problems Viewed from Cognitive Style Rum, Ahbi Mahdianing
Kognitif: Jurnal Riset HOTS Pendidikan Matematika Vol. 5 No. 4 (2025): October - December 2025
Publisher : Education and Talent Development Center Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/kognitif.v5i4.3690

Abstract

Students’ mathematical literacy is influenced by cognitive style which refers to individual variations in processing different subcomponents for the three main categories of cognitive processes which is perception, memory, and cognition. The difference of students’ characteristic in processing the information affects how they solve the question. This study aims to identify students' errors in solving PISA-based mathematical problems based on Newman's theory. This study used case study method which was carried out in one of the junior high schools in North Bengkulu Regency, Bengkulu Province, involving 32 students of class 8th in the 2022/2023 academic year who had studied number pattern. The subjects in this research were chosen purposively, there were 3 Field Dependent (FD) students namely LFD, MFD, and HFD. Data in the research were collected using the Group Embedded Figure Test, mathematical literacy tests which is developed according PISA-based level, and interviews. The result showed that when solving problems, earlier stage of error affected another error which led to a incorrect sollution. According to newman errors, the dominant errors experienced by LFD student when solving mathematical literacy problems were comprehension errors, process skill errors, and encoding errors. The dominant errors experienced by MFD students were transformation errors and encoding errors. Furthermore, the dominant errors experienced by HFD students were comprehension errors and transformation errors.
Students' Mathematical Literacy Ability In Solving Problems Viewed From Cognitive Style Rum, Ahbi Mahdianing; Juandi, Dadang; A, Endang Cahya Mulyaning
Jurnal Pendidikan Matematika IKIP Veteran Semarang Vol 9 No 3 (2025): Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang
Publisher : Urogram Studi Pendidikan Matematika, Universitas Ivet

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31331/medivesveteran.v9i3.3979

Abstract

The differences in the characteristics of field dependent and field independent students in applying their mathematical literacy affect the results of students' work in solving mathematical problems. This study aims to identify students' mathematical literacy abilities viewed from cognitive style especially field dependent and field independent students in solving mathematical problems. This study uses a case study method with a qualitative approach which was carried out in one of the junior high schools in North Bengkulu Regency, Bengkulu Province, involving 32 students of class VIII in the 2022/2023 academic year who had studied number pattern material as participants. The subjects in this study were selected purposively, namely 3 students with a Field Dependent (FD) cognitive style. Data in the study were collected using the Group Embedded Figure Test (GEFT), mathematical literacy tests, and interviews. The research findings show that the majority of students have a cognitive style FI compared to FD. Most students achieved mathematical literacy skills at level 3. In terms of cognitive style, from the five levels of questions given, level 1-level 5, FD subjects with low, medium, and high initial mathematical abilities (KAM) achieved mathematical literacy up to level 3. The students met the formulate, employ and interpret indicators but still had difficulty writing mathematical symbols.
Co-Authors A, Endang Cahya Mulyaning Dadang Juandi hanifah hanifah Rusdi Rusdi Susanta, Agus