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All Journal Biosfer: Jurnal Tadris Biologi Jurnal Pemikiran Sosiologi Jurnal Tadris Matematika Hearty : Jurnal Kesehatan Masyarakat Indonesian Journal of Economics, Social, and Humanities Jurnal Samudra Ekonomi dan Bisnis Biolearning Journal Jurnal Abdimasa de Fermat : Jurnal Pendidikan Matematika Jurnal Ekobis : Ekonomi Bisnis & Manajemen JagoMIPA: Jurnal Pendidikan Matematika dan IPA THEOREMA : The Journal Education of Mathematics Riemann : Research of Mathematics and Mathematics Education Jurnal Tadris Matematika Optimum: Jurnal Ekonomi dan Pembangunan
Syamsulrizal Syamsulrizal
Universitas Pendidikan Muhammadiyah Sorong
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Immunology & microbiology Law, Crime, Criminology & Criminal Justice Mathematics Physics Social Sciences Other

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Students' Critical Thinking Dispositions: Truth Seeking and Systematic Syamsulrizal; Supratman; Sahidi
Riemann: Research of Mathematics and Mathematics Education Vol. 8 No. 1 (2026): EDISI APRIL
Publisher : Program Studi Pendidikan Matematika Universitas Katolik Santo Agustinus Hippo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38114/riemann.v8i1.151

Abstract

This study aims to describe students’ critical thinking dispositions in the aspects of truth-seeking and systematic thinking in mathematical problem-solving. This research employed a qualitative descriptive design involving two ninth-grade students selected through purposive sampling based on high mathematical ability. Data were collected through problem-solving tasks and semi-structured interviews and analyzed using indicators of truth-seeking (identifying relevant information, evaluating assumptions, and using accurate data) and systematic thinking (organizing solution steps logically, using appropriate mathematical notation, and verifying results). Data validity was ensured through triangulation of written responses and interview data. The findings reveal that students are generally able to organize relevant data, follow logical procedures, and obtain correct answers, indicating the presence of procedural-level critical thinking dispositions. However, students demonstrate weaknesses in verifying assumptions and evaluating final results, showing that reflective aspects of critical thinking are not yet fully developed. These findings highlight a gap between procedural competence and the depth of critical thinking dispositions, where correct answers do not necessarily reflect strong critical thinking. This study contributes theoretically by emphasizing that critical thinking involves not only cognitive skills but also reflective habits that require explicit development. Practically, the results suggest the need for instructional strategies that encourage students to recheck their work, question assumptions, and reflect on their reasoning processes.
Exploring the Growth of a Junior High School Student’s Mathematical Understanding and Higher-Order Thinking Efuansyah; Syamsulrizal
Riemann: Research of Mathematics and Mathematics Education Vol. 8 No. 1 (2026): EDISI APRIL
Publisher : Program Studi Pendidikan Matematika Universitas Katolik Santo Agustinus Hippo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38114/riemann.v8i1.164

Abstract

Mathematical understanding develops dynamically and plays an important role in fostering higher-order thinking skills (HOTS). However, studies using the Pirie–Kieren framework have not consistently examined the relationship between the growth of mathematical understanding and higher-order thinking. This study aims to explore the growth of a junior high school student’s mathematical understanding at Junior High School Number 8 Lubuklinggau, and higher-order thinking within the framework of Pirie-Kieren. This study employed a descriptive exploratory approach involving one eighth-grade student with high mathematical ability, selected purposively. The student completed a System of Linear Equations in Two Variables (SPLDV) task designed based on the Pirie–Kieren layers of understanding. Data were collected through observations, interviews, and documentation, and were analyzed thematically. The results show that the student’s mathematical understanding exhibited growth in a dynamic and nonlinear manner, progressing from primitive knowing to structuring, with recurring folding-back. Along this progression, the student demonstrated higher-order thinking, including recognizing concepts, applying prior knowledge in new contexts, constructing mathematical models, identifying properties, abstracting ideas, reflecting on processes, and connecting concepts. These findings indicate that the growth of mathematical understanding is closely associated with the development of higher-order thinking, suggesting that both evolve simultaneously during the learning process.
The Role of Self-Directed Learning in Enhancing Scientific Reasoning Skills: Integrating Project-Based Learning for Biology Education Students Jaharudin, Jaharudin; Mochamad Cholily, Yus; Pantiwati, Yuni; Andi Hidayat, Febrian; Rachman Tiro, Abdul; Citraningrum, Mivtha; Syamsulrizal; Santoso, Budi; Sirojjuddin; Alia Ulfa, Nurul; Hidayatussakinah
Biosfer: Jurnal Tadris Biologi Vol 17 No 1 (2026): Biosfer: Jurnal Tadris Biologi
Publisher : UNIVERSITAS ISLAM NEGERI RADEN INTAN LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/biosfer.v17i1.30657

Abstract

This study examines the effectiveness of integrating Self-Directed Learning (SDL) and Project-Based Learning (PjBL) in enhancing students' scientific reasoning skills in biology education. An explanatory sequential mixed-methods design was employed, combining a quasi-experimental one-group pretest–posttest design with qualitative exploration. The participants were 30 undergraduate students in biology education. Quantitative data were collected using a scientific reasoning test, while qualitative data were obtained through semi-structured interviews and reflective writings. The results showed a significant improvement in students’ scientific reasoning scores (p < 0.001) with a very large effect size (Cohen’s d = 2.35). Qualitative findings indicated that learning independence, authentic problem-solving, metacognitive reflection, and scientific collaboration contributed to this improvement. The integration of SDL and PjBL fosters a student-centered learning environment that supports cognitive and metacognitive development. This study offers an integrated pedagogical model and practical implications for enhancing higher-order thinking skills in biology education. Peran Self-Directed Learning dalam Meningkatkan Kemampuan Penalaran Ilmiah: Integrasi Project-Based Learning pada Mahasiswa Pendidikan Biologi ABSTRAK: Penelitian ini bertujuan mengkaji efektivitas integrasi Self-Directed Learning (SDL) dan Project-Based Learning (PjBL) dalam meningkatkan kemampuan penalaran ilmiah mahasiswa pendidikan biologi. Penelitian menggunakan desain explanatory sequential mixed methods dengan pendekatan kuasi-eksperimen one-group pretest–posttest dan eksplorasi kualitatif. Sebanyak 30 mahasiswa berpartisipasi dalam penelitian ini. Data kuantitatif diperoleh melalui tes penalaran ilmiah, sedangkan data kualitatif dikumpulkan melalui wawancara semi-terstruktur dan refleksi tertulis. Hasil menunjukkan adanya peningkatan signifikan pada skor penalaran ilmiah mahasiswa (p < 0,001) dengan ukuran efek sangat besar (Cohen’s d = 2,35). Temuan kualitatif mengungkap bahwa kemandirian belajar, pemecahan masalah autentik, refleksi metakognitif, dan kolaborasi ilmiah berkontribusi terhadap peningkatan penalaran ilmiah. Integrasi SDL dan PjBL menciptakan lingkungan pembelajaran yang berpusat pada mahasiswa serta mendukung proses kognitif dan metakognitif. Penelitian ini berkontribusi dalam pengembangan model pembelajaran terintegrasi untuk meningkatkan keterampilan berpikir tingkat tinggi dalam pendidikan biologi
Efektivitas Media Puzzle Manipulatif dalam Meningkatkan Kemampuan Visual-Spasial Siswa Sekolah Dasar pada Materi Bangun Datar: Systematic Literature Review Sitti Hanan Asrawi; Syamsulrizal Syamsulrizal; Heny Sri Astutik
JagoMIPA: Jurnal Pendidikan Matematika dan IPA Vol. 6 No. 2 (2026): JagoMIPA: Jurnal Pendidikan Matematika dan IPA
Publisher : Yayasan Pendidikan Bima Berilmu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53299/jagomipa.v6i2.4452

Abstract

Rendahnya kemampuan visual-spasial siswa sekolah dasar pada materi bangun datar masih menjadi tantangan dalam pembelajaran matematika karena siswa sering mengalami kesulitan memahami bentuk, posisi, dan hubungan ruang secara abstrak. Kondisi tersebut menunjukk an pentingnya penggunaan media pembelajaran konkret yang mampu membantu siswa memahami konsep geometri secara visual dan manipulatif. Penelitian ini bertujuan untuk menganalisis efektivitas media puzzle manipulatif dalam meningkatkan kemampuan visual-spasial siswa sekolah dasar pada materi bangun datar melalui pendekatan Systematic Literature Review (SLR). Penelitian menggunakan pedoman PRISMA 2020 dengan sumber data dari Google Scholar, ERIC, Garuda, dan Scopus pada rentang tahun 2022–2026. Sebanyak 20 artikel yang memenuhi kriteria inklusi dianalisis menggunakan teknik analisis deskriptif dan sintesis tematik. Hasil penelitian menunjukkan bahwa media puzzle manipulatif, terutama tangram dan puzzle bangun datar, efektif meningkatkan kemampuan visual-spasial, pemahaman konsep geometri, hasil belajar matematika, dan kreativitas siswa. Media puzzle membantu siswa melakukan visualisasi bentuk, rotasi objek, dan eksplorasi hubungan spasial melalui aktivitas interaktif. Penelitian ini menunjukkan bahwa media puzzle manipulatif relevan digunakan dalam pembelajaran matematika sekolah dasar karena sesuai dengan karakteristik perkembangan kognitif siswa pada tahap operasional konkret.
Co-Authors Ahmad Isroil Alia Ulfa, Nurul Alya Dwi Pratiwi Amelia, Safira Ayu Yuniar Anggo Beida Almira Herlianti Citraningrum, Mivtha Devita Prinanda Dewi Anggreini Difta Anggraeni Syawal Li Idul Fitri Dwi Budi Santoso Efuansyah, E Eko Tavip Maryanto Febrian Andi Hidayat Havidz Ageng Prakoso Heny Sri Astutik Hidayatussakinah Indah Arsy Jaharudin, Jaharudin Kharisma Hijriyatul Amelia M. Syaprin Zahidi MOCHAMAD CHOLILY, YUS Mukhlas Triono Nia Sugiarti Aruan Nurpan, Puteri Zaura Aprilia Rachman Tiro, Abdul Raharja, Surya Putra Rappa, Dewinta Indriany Riskawati Riskawati Roni Andri Pramita Sahidi Sahidi Salahuddin Salahuddin Salahudin Salahudin Sinaran, Herlina Sirojjuddin Sitti Hanan Asrawi Solehun Solehun Suciati, Anis Sukiyanto Sukiyanto Sukiyanto Supratman Supratman Wati Wati Yuni Pantiwati