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All Journal Bookchapter Pendidikan Universitas Negeri Semarang Unnes Journal of Mathematics Education
Safaatullah, Muh. Fajar
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JENIS DAN LETAK KELEMAHAN KEMAMPUAN KOMUNIKASI DAN REPRESENTASI MATEMATIS GEOMETRI BAGI MAHASISWA CALON GURU Susilo, Bambang Eko; Masrukan, Masrukan; Sutarto, Hery; Safaatullah, Muh. Fajar
Bookchapter Pendidikan Universitas Negeri Semarang No. 8 (2024)
Publisher : Bookchapter Pendidikan Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.1529/kp.v1i8.198

Abstract

Mahasiswa calon guru matematika dituntut untuk memiliki kemampuan komunikasi dan representasi matematis yang baik. Kemampuan tersebut sangat dibutuhkan agar pembelajaran yang kelak diselenggarakan dapat efektif bagi peserta didik. Dampak negatif pandemi Covid-19 secara nyata ditemukan pada kemampuan komunikasi dan representasi matematis mahasiswa calon guru yang pembelajarannya diselenggarakan secara daring maupun hybrid hampir selama dua tahun. Hal ini disebabkan karena keterbatasan praktik dalam komunikasi dan representasi, tidak terkecuali pada materi geometri. Melalui penyelidikan jenis dan letak kelemahan kemampuan komunikasi dan representasi matematis geometri mahasiswa calon guru diharapkan dapat ditentukan tindakan dan strategi perkuliahan yang tepat dalam usaha mengantisipasinya sehingga pembelajaran lebih efektif. Pembahasan terkait pentingnya kemampuan komunikasi dan representasi matematis geometri dan juga hasil identifikasi terkait jenis dan letak kelemahan kemampuan komunikasi dan representasi matematis geometri mahasiswa calon guru menjadi temuan yang dapat digunakan untuk referensi penyusunan strategi pembelajaran dengan tindakan yang tepat supaya pembelajaran efektif.
Students' Mathematical Critical Thinking Ability in Term of Self-Confidence in CORE Model Learning with Open-Ended Approach Sari, Yunita Eka; Safaatullah, Muh. Fajar
Unnes Journal of Mathematics Education Vol. 13 No. 3 (2024): Special Issue
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujme.v13i3.11136

Abstract

The study aimed to: (1) to examine the effect of grade VII students' self-confidence on their the mathematical critical thinking ability of grade VII students in the CORE learning model with an open-ended approach achieved classical completeness; (2) to examine the mathematical critical thinking ability of grade VII students in the CORE learning model with an open-ended approach achieved classical completeness; (3) to examine the average mathematical critical thinking ability of grade VII students in the CORE model with an open-ended approach to that in the PBL model; and (4) to describe the mathematical critical thinking ability of grade VII students based on their self-confidence levels in the CORE learning model with an open-ended approach. This research employed a mixed-methods approach with a sequential explanatory design. The sampling technique used was simple random sampling, while subject selection applied purposive sampling. Data were collected through tests of mathematical critical thinking ability, self-confidence questionnaires, and interviews. The results showed: (1) self-confidence positively influenced mathematical critical thinking ability by 39.1%; (2) the mathematical critical thinking ability of grade VII students in the CORE model with an open-ended approach reached 81.25% classical completeness; (3) the average mathematical critical thinking ability in the CORE model was better than in the PBL model; (4) students with high self-confidence demonstrated all four stages of mathematical critical thinking (clarification, assessment, inference, and strategy/tactics), students with medium self-confidence fulfilled two stages (clarification and assessment), and students with low self-confidence achieved only the clarification stage.
Students’ Mathematical Critical Thinking Ability Reviewed from Learning Motivation in Problem Based Learning Model Assisted by Google Sites Safaatullah, Muh. Fajar; Pangestu, Abdil Munir; Amidi, Amidi
Unnes Journal of Mathematics Education Vol. 14 No. 1 (2025): Reguler Issue
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujme.v14i1.22151

Abstract

This study aims to analyze students' critical thinking skills through the Google Sites Problem Based Learning (PBL) model, both from the aspect of classical completeness and its superiority compared to conventional models, as well as the effect of learning motivation on critical thinking skills. Research also describes students' critical thinking skills based on the level of learning motivation. The method used is a mixture with sequential explanatory design, where the quantitative approach uses the post-test only control group design. The research population is all students of class VIII of SMP Negeri 26 Semarang, with samples of class VIII A as an experimental and VIII B group as a control group. Research instruments in the form of a test of mathematical critical thinking skills, learning motivation questionnaires, and interviews, with data analysis using IBM SPSS 22. The results show that the PBL model assisted by Google Sites reaches classical completeness and is more effective than conventional models. Learning motivation has an influence of 38.5% on critical thinking skills. Further analysis shows that students with high motivation meet all indicators of critical thinking abilities, students with motivation are superior to indicators of interpretation, analysis, and evaluation, while students with low motivation are only superior to indicators of interpretation and analysis. This finding confirms that the PBL model assisted by Google Sites is effective in improving the ability of students' mathematical critical thinking, with learning motivation as one of the main supporting factors.
Co-Authors Amidi Amidi, Amidi Bambang Eko Susilo Hery Sutarto Masrukan Masrukan Pangestu, Abdil Munir Sari, Yunita Eka