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All Journal Math Didactic: Jurnal Pendidikan Matematika Union: Jurnal Ilmiah Pendidikan Matematika Journal of Education and Instruction (JOEAI) Jurnal Pendidikan Matematika (JUDIKA EDUCATION) Journal of Mathematics Science and Education JE (Journal of Empowerment) Jurnal Penelitian Pembelajaran Matematika Sekolah AS-SABIQUN: Jurnal Pendidikan Islam Anak Usia Dini Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Riset Pembelajaran Matematika Sekolah EMTEKA: Jurnal Pendidikan Matematika JURNAL PENDIDIKAN IPS Journal of Research in Social Science and Humanities International Journal of STEM Education for Sustainability Journal Of Human And Education (JAHE) JIMAKUKERTA Journal of Mathematics Instruction, Social Research and Opinion Dikdimas : Jurnal Pengabdian Kepada Masyarakat SJME (Supremum Journal of Mathematics Education)
Winda Ramadianti, Winda
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Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Nursing Public Health Social Sciences Other

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Description of Students' Mathematical Critical Thinking Ability on Circle Material in Class VIII of SMP Negeri 09 Lebong Ristontowi, Ristontowi; Adepio, Sakut; Ramadianti, Winda; Masri, Masri; Jumri, Rahmat
Journal of Mathematics Instruction, Social Research and Opinion Vol. 4 No. 4 (2025): December
Publisher : MASI Mandiri Edukasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58421/misro.v4i4.1165

Abstract

Mathematical critical thinking ability is the capacity to investigate, discover, connect, and assess every aspect of a problem carefully and thoughtfully to arrive at the best solution. This study aims to describe students' mathematical critical thinking abilities regarding circles in Grade VIII at SMP Negeri 09 Lebong. This research is a qualitative descriptive study with 20 student participants. Three students were interviewed: one with high ability, one with medium ability, and one with low ability. Data collection methods included tests, interviews, and documentation. The research instruments consisted of test items and interview guidelines. The data analysis technique involved data collection, data reduction, data presentation, and conclusion. The results of the study show that high-ability students met all indicators of mathematical critical thinking: Interpretation, Analysis, Evaluation, and Conclusion. Medium-ability students met two indicators: Interpretation and Analysis. Low-ability students were unable to meet the indicators of mathematical critical thinking: Interpretation, Analysis, Evaluation, and Conclusion.
Development of Contextual Intercropping-Based Student Worksheets to Facilitate Students’ Problem-Solving Skills Sularni, Sularni; Cahaya, Mariana Ade; Ramadianti, Winda
Journal of Research in Social Science and Humanities Vol 6, No 1 (2026): March 2026
Publisher : Utan Kayu Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47679/jrssh.v6i1.556

Abstract

This research was motivated by the low mathematical problem-solving ability of eighth-grade students at SMPN 15 Bengkulu Utara on the topic of linear equations and inequalities of one variable, as indicated by an average score of 40. In addition, the Student Worksheets (LKPD) used in the classroom are not contextual, less engaging, and have not optimally facilitated the development of students’ problem-solving skills. Therefore, this study aims to develop intercropping context-based LKPD that are valid and practical in facilitating students’ mathematical problem-solving abilities. This research employed a development research approach using the 4D model adapted into three stages, namely define, design, and develop. The study was conducted at SMPN 15 Bengkulu Utara. The research subjects consisted of 10 students of class VIII B in the limited trial and 23 students of class VIII A in the field trial during the 2025/2026 academic year. The research instruments included expert validation sheets as well as teacher and student response questionnaires. The collected data were analyzed using descriptive quantitative techniques through percentage calculations to determine the validity and practicality levels of the developed product.The results showed that the intercropping context-based LKPD obtained a validity percentage of 90.18% from experts, which falls into the highly valid category. Meanwhile, the practicality results indicated that the LKPD achieved a score of 93.33% based on teacher responses and 88.15% based on student responses, both categorized as highly practical. Therefore, the developed LKPD is considered valid and practical for facilitating students’ mathematical problem-solving skills.
Perbandingan Model Pembelajaran Discovery Learning dan Problem Solving terhadap Kemampuan Berpikir Kritis dan Kemandirian Belajar Siswa pada Mata Pelajaran IPS Marleni, Linna; Milla, Hilyati; Ramadianti, Winda
JURNAL PENDIDIKAN IPS Vol. 16 No. 2 (2026): JURNAL PENDIDIKAN IPS
Publisher : STKIP Taman Siswa Bima

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37630/jpi.v16i2.4250

Abstract

Penelitian ini bertujuan untuk mengetahui perbedaan kemampuan berpikir kritis dan kemandirian belajar siswa yang menggunakan model Discovery Learning, Problem Solving, dan pembelajaran konvensional pada mata pelajaran Ilmu Pengetahuan Sosial (IPS) di SMP Negeri 2 Kota Bengkulu. Metode yang digunakan adalah quasi experiment dengan desain Pretest-Posttest Nonequivalent Control Group Design. Sampel terdiri dari 111 siswa kelas VII dalam tiga kelompok: kelas VII B (Discovery Learning, n=37), kelas VII C (Problem Solving, n=37), dan kelas VII F (konvensional, n=37), dipilih melalui teknik cluster random sampling. Instrumen penelitian meliputi tes uraian untuk berpikir kritis dan angket skala Likert empat poin untuk kemandirian belajar. Data dianalisis menggunakan One-Way ANOVA dan uji lanjut LSD dengan SPSS 26. Hasil menunjukkan: (1) terdapat perbedaan signifikan berpikir kritis antar kelompok (F(2,108)=6,572; Sig.=0,002), di mana Discovery Learning (Sig.=0,036) dan Problem Solving (Sig.=0,000) lebih efektif dari konvensional, namun tidak berbeda signifikan satu sama lain (Sig.=0,140); (2) terdapat perbedaan signifikan kemandirian belajar (F(2,108)=17,667; Sig.=0,000), dengan Discovery Learning lebih efektif dari Problem Solving (Sig.=0,000) dan konvensional (Sig.=0,000), sementara Problem Solving tidak berbeda signifikan dengan konvensional (Sig.=0,081). Disimpulkan bahwa Discovery Learning merupakan model paling efektif untuk mengembangkan kemandirian belajar, sedangkan kedua model aktif lebih unggul dari konvensional dalam berpikir kritis.
Efektivitas Model Discovery Learning  dan Model Simulasi terhadap Kemampuan Analisis Matematis Siswa Kelas X Widiastuti, Eni; Hidayat, Tomi; Ramadianti, Winda
JOEAI (Journal of Education and Instruction) Vol. 9 No. 2 (2026): JOEAI (Journal of Education and Instruction)
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/h65kt996

Abstract

This study aims to determine the differences in mathematical analysis abilities of students learning through Discovery Learning, simulation, and conventional methods in mathematics learning for grade 10 at SMA Negeri 7, Bengkulu City. The research method used was quasi-experimental. Based on the results of SPSS calculations, it can be concluded that there is an analytical effect of using the Discovery Learning model on students' abilities in mathematics learning for grade 10 at SMA Negeri 7, Bengkulu City. This is evidenced by the calculated t value = 2.921 with a significance value of 0.004 <0.05 and a significance level of 5% for a two-tailed test and df = n - 2 - 1 = 65. The t table obtained is 1.98. Therefore, it can be concluded that t = 2.921 > t = 1.98, which means that there is a significant partial effect of the Discovery Learning model on students' analytical abilities at SMA Negeri 7, Bengkulu City. In conclusion, the Discovery Learning model (X1) and the simulation method (X2) have an effect on students' analytical abilities (Y).   Keywords: Analysis, Discovery Learning, Simulation,
Co-Authors Adepio, Sakut Asmara, Adi Asti Parwati Elen, Indri Elvina Damayanti Eni Widiastuti, Eni Faras, Haniyah Raihani Fitriani, Apriza Hajar, Dwi Fatmi Hartati, Merri Sri Hilyati Milla Kashardi, Kashardi Lestari, Teri Mahyudi Mahyudi, Mahyudi Mariana Ade Cahaya Marleni, Linna Masri Masri Masyita Ariani, Nyayu Mundanti, Sonia Anggraini Nyayu Masyita Ariani RACHMAT HIDAYAT Rahmat Jumri Risnanosanti Risnanosanti Ristontowi, Ristontowi Riwayati, Selvi Salim, Aisyah Natalia Sari, Eva Ria Indah Sari, Listri Maya septia agustina Sularni, Sularni Syofiana, Mardiah Tomi Hidayat, Tomi Wati, Rotma Winanda, Dio Reski Wulandari, Annisa Yolanda, Helpa Yudha, Romadhona Kusuma