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All Journal Numeracy : Jurnal Ilmiah Pendidikan Matematika JMM (Jurnal Masyarakat Mandiri) Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Eduscience (JES) Jurnal Absis : Jurnal Pendidikan Matematika dan Matematika J-PiMat : Jurnal Pendidikan Matematika MATH-EDU: Jurnal Ilmu Pendidikan Matematika Jurnal Pengabdian Sains dan Humaniora Kreativasi: Journal of Community Empowerment
Maria Naimnule
Prodi Pendidikan Matematika, Universitas Timor
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Education Mathematics Social Sciences Other

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Improving Students' Mathematical Connection Skills Through The Think Talk Write (TTW) Type Cooperative Learning Model At Noemuti Public High School Elisabeth Apmalo; Stanislaus Amsikan; Maria Naimnule
MATH-EDU: Jurnal Ilmu Pendidikan Matematika Vol. 11 No. 1 (2026): MATH-EDU: Jurnal Ilmu Pendidikan Matematika
Publisher : Program Studi Pendidikan Matematika, Fakultas Ilmu Pendidikan, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jipm.v11i1.10911

Abstract

Abstract This research aims to improve students' mathematical connection skills through the application of a Think Talk Write (TTW) type cooperative learning model on quadratic function materials. This research is a Class Action Research conducted in two cycles, each of which includes holding planning, implementing actions, observation and reflection. The subjects in this study are 23 students of class X/A of Noemuti State High School. The data collection technique used mathematical connection ability tests and observation sheets of learning activities. The results of the study showed that in the first cycle the average score of students was 72.09 with classical completeness of 60.86. After learning improvements were made in the second cycle, the average student score increased to 84.22 with classical completeness reaching 100%. The results of the study show that the Think Talk Write model is able to improve learning activities, concept understanding and students' ability to connect various mathematical concepts. Thus, the Think Talk Write cooperative learning model is effectively used to improve students' mathematical connection skills on quadratic function material.
Analysis of Students’ Mathematical Reasoning Ability in Solving Problems on Quadratic Equations at SMP Negeri Bitefa Hendrika Bete; Aprilia Binsasi; Maria Naimnule
MATH-EDU: Jurnal Ilmu Pendidikan Matematika Vol. 11 No. 1 (2026): MATH-EDU: Jurnal Ilmu Pendidikan Matematika
Publisher : Program Studi Pendidikan Matematika, Fakultas Ilmu Pendidikan, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jipm.v11i1.10918

Abstract

This study aimed to analyze students’ mathematical reasoning ability in solving problems on the topic of quadratic equations at SMP Negeri Bitefa. The research used a qualitative descriptive approach with 18 eighth-grade students as participants. Data were collected through tests of mathematical reasoning and follow-up interviews with three selected subjects representing high, medium, and low levels of reasoning ability. The results showed that students’ reasoning abilities varied across five indicators: (1) making initial conjectures and predictions based on problem context, (2) performing mathematical manipulations to find patterns and relationships, (3) constructing systematic mathematical arguments and proofs, (4) evaluating mathematical arguments for accuracy, and (5) integrating analysis results to draw logical conclusions. The findings revealed that students generally demonstrated moderate reasoning ability. The strongest performance appeared in the ability to draw conclusions (50.74%), while the weakest was in generating conjectures (44.81%). These results suggest the need for mathematics instruction that emphasizes inquiry-based and problem-solving learning strategies to improve reasoning competence.
Pengembangan LKPD Case-Based Learning Terintegrasi Pendidikan Karakter pada Materi SPLDV Rika Handayani; Maria Naimnule
J-PiMat : Jurnal Pendidikan Matematika Vol 8, No 1 (2026): J-PiMat
Publisher : Prodi Pendidikan Matematika STKIP Persada Khatu;istiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/j-pimat.v8i1.6268

Abstract

This study aims to develop a Case-Based Learning-based LKPD integrated with character education on SPLDV material. This study uses the ADDIE development model which includes the stages of Analysis, Design, Development, Implementation, and Evaluation. The research subjects were 31 ninth-grade students of SMPN Mubeli who were selected by purposive sampling. Product validity was assessed by material experts, media experts, and character education experts. The practicality of the LKPD was measured through teacher and student response questionnaires, while effectiveness was analyzed based on the results of the post-test and student character questionnaires. The results showed that the developed LKPD had a very high level of validity with an average score of 90%. The practicality level of the LKPD was in the very practical category with an average of 91.3%. Furthermore, the Student Worksheet (LKPD) proved effective in improving student learning outcomes, with an average post-test score of 81.71 and classical completion reaching 100%. The character questionnaire results also showed improvements in critical reasoning, honesty, and responsibility, all within the good category. Thus, the Case-Based Learning-based LKPD, integrated with character education based on the local context of NTT, is declared valid, practical, and effective for use in SPLDV learning.Keyword: Student Worksheet, Case Based Learning, Character Education, SPLDV
Co-Authors Aprilia Binsasi Bete, Hendrika Cecilia Novianti Salsinha Chrisinta, Debora Dominifridus Bone Dominifridus Bone Dominifridus Bone Elisabeth Apmalo Juventianus Kenjam mone, ferdinandus Rika Handayani Simarmata, Justin Eduardo Stanislaus Amsikan Wua Laja, Yosepha Patricia Yohanes Jefrianus Kehi