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All Journal Humaniora JPMS (Jurnal Pendidikan Matematika dan Sains) MATEMATIKA Journal of Education and Learning (EduLearn) AdMathEdu : Jurnal Ilmiah Pendidikan Matematika, Ilmu Matematika dan Matematika Terapan Jurnal Infinity Kreano, Jurnal Matematika Kreatif-Inovatif Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran Jurnal Filsafat Journal of Educational Science and Technology AlphaMath: Journal of Mathematics Education Educational Management Jurnal Filsafat International Journal on Emerging Mathematics Education Jurnal Tadris Matematika Jurnal Cendekia : Jurnal Pendidikan Matematika Unnes Journal of Mathematics Education Research Journal of Primary Education Proximal: Jurnal Penelitian Matematika dan Pendidikan Matematika INOPENDAS: Jurnal Ilmiah Kependidikan Kognitif: Jurnal Riset HOTS Pendidikan Matematika Unnes Journal of Mathematics Education Unnes Journal of Mathematics Prosiding Seminar Nasional Pascasarjana Proceeding of International Conference on Science, Education, and Technology Jurnal Infinity Jurnal Tadris Matematika
Hardi Suyitno
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Religion Arts Humanities Computer Science & IT Decision Sciences, Operations Research & Management Education Engineering Languange, Linguistic, Communication & Media Library & Information Science Mathematics Social Sciences Other

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Practicality and Effectiveness of the COMESC Learning Model in Fostering Statistical Thinking Skills Nio, Tan Hian; Suyitno, Hardi; Kartono, Kartono; Mariani, Scolastika
Kognitif: Jurnal Riset HOTS Pendidikan Matematika Vol. 5 No. 3 (2025): July - September 2025
Publisher : Education and Talent Development Center Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/kognitif.v5i3.1184

Abstract

The COMESc learning model is a specialized instructional approach developed through research and development to address university students’ weaknesses in statistical thinking. These weaknesses include challenges in problem identification, hypothesis formulation, selection of appropriate statistical methods, interpretation of statistical relationships, application of significance testing, execution of calculations, comparison of sample and critical values, decision-making, and result interpretation. This study aimed to evaluate the practicality and effectiveness of the COMESc model in improving students’ statistical thinking skills. A limited field trial was conducted with 27 participants over 10 class sessions. Qualitative data were collected through open-ended questionnaires and in-depth interviews, while quantitative data were obtained from closed-ended questionnaires and tests. Results indicated that the COMESc model is highly practical (95.65%) and effective, with 100% of participants achieving a minimum average test score of 73. The model also improved learning outcomes, enhanced performance, and stimulated active learning dynamics. Its strengths lie in ease of implementation, structured problem-solving syntax, and capacity to foster deeper statistical reasoning, while its main limitation is the need for instructor patience during initial implementation.
Peningkatan Keterampilan Berpikir Kritis dalam Matematika Sekolah Menengah melalui Discovery Learning Berbantuan LKPD Ismawati, Arfina Maya; Suyitno, Hardi; Hastuti, Wijaning
Jurnal Tadris Matematika Vol 7 No 2 (2024)
Publisher : Universitas Islam Negeri Sayyid Ali Rahmatullah Tulungagung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21274/jtm.2024.7.2.309-320

Abstract

This research is motivated by the results of observations that indicate that the critical thinking skills of students at SMAN 2 Yogyakarta still need to be improved. This is seen during learning practices, where they are still fixated on the formulas they have memorized to solve problems, so that not many students can provide further explanations about solving the problem. On the other hand, the pretest results also show that the average value of students' critical thinking skills is still very low, namely 30.76% with 1 student having high critical thinking skills and 33 others still classified as low and very low. Therefore, this Classroom Action Research (CAR) is a study that aims to improve critical skills in high school mathematics through discovery learning assisted by LKPD. This research was conducted in two cycles, each cycle consisting of four stages: planning, implementation, observation, and reflection. The results of the study show an increase in critical thinking skills from cycle I to cycle II. In cycle I, the average percentage of students' critical thinking skills reached 73.64% (medium category), while in cycle II, it increased to 80.72% (high category). Thus, this classroom action research succeeded in achieving the expected goal, namely, improving critical thinking skills in secondary school mathematics through the application of the Discovery Learning model assisted by LKPD
Co-Authors Abrar Abira Afit Istiandaru, Afit Agus Jaenudin Ainur Rifqi, Ainur Alamsyah - Ali Djamhuri Alifani, Shabrina Mei Andes Safarandes Asmara, Andes Safarandes Ani Rusilowati Apriliani, Laely Rohmatin Ardhi Prabowo Ardiyanti, Yusi Arief Agoestanto Arief Agoestanto Arifin, Mustofa Asih, Tri Sri Noor Aula, Maulida Fatma Reza Bambang Eko Susilo Budhiharti, Susi Juwita Budi Waluya Cahyani, Hesti Darmo, Darmo Deni Kurniawan, Deni Dewi, Nuriana Rachmani Dwijanto Dwijanto Dwijanto Dwijanto Dwijanto Dwijanto Dwijanto Dwijanto Dwijanto Dwijanto Dwijanto Dwijanto, Dwijanto Dwijanto, Dwijanto Endang Susilaningsih Etik Rahayu Farizal, Thesa Febriyana, Dyah Hairunnisah, Hairunnisah Hartati, Tri Lusi Hastuti, Wijaning Herdini, Resty Ayu Huda, Wafiq Nurul Imam Kusmaryono Imam Sayekti Intan Sari Iqbal Kharisudin Ismawati, Arfina Maya Isnaini Rosyida, Isnaini Isnarto Isnarto Isnarto Isnarto Isnarto Isnarto Isnarto Isnarto Isnarto, Isnarto Isti Hidayah Istiqomah, Sayidah Nur Iwan junaedi Iwan Junaedi Juhrani, Juhrani Junaidi, Iwan Kadarsono, Mohamad Karsim, Karsim Kartono - Kartono, Kartono Karyadi Karyadi Khumaedi - Kurniawati, Fita Lita Latiana Lukmana, Chandra Prasetia Mashuri Mashuri Maulida, Azwida Rosana Mohammad Asikin Mufida, Aina Muhammad Rizqi Mujib Mujib Mulyono Mulyono nastiti, Muji Nino Adhi, Nuriana Rachmani Dewi Nio, Tan Hian Nitasari, Ayu Nugraha, Arief Juang Nugroho, Ahmad Munif Nurkaromah Dwidayati, Nurkaromah Nuryadi Nuryadi Oktaviani, Rinta Palupi, Hanifah Raras Pratiwi, Danny Priambada, Miko Probosiwi, Wdyanita Indah Purwandito, Rizky Putut Marwoto Qudwatullathifah, Ratri Nuryani Rahmawati, luthfiana Ratna Dewi Kusumaningtyas Ria Wulansarie, Ria Rick Hunter Simanungkalit, Rick Hunter Riyadhotul Janah, Siti Riza Arifudin Rizqi, Afria Alfitri Rochmad - SA'ADAH, ALFIATUS Sabrina, Ahlam Safa'atullah, Muh. Fajar Saiful Ridlo Sapto, Argiyanto Dwi Sapto, Argiyanto Dwi SATRIYAS ILYAS Scolastika Mariani Setiawan, Fajar Tri Setyawan, Fariz Sholihah, Fitrotus Siti Makhmudah St. Budi Waluya Sudarmin Sudarmin Sugiman Sugiman Sukestiyarno Sukestiyarno Sukestiyarno Sukestiyarno Suparmi Suparmi Supriyadi Supriyadi Supriyono Supriyono Suryono, Wiwik Ariyani Susanto, Febri Tiara Yulita Ula Himatul Aliyah Ula Himatul Aliyah umi arifah, umi Utami, Eka Nurul Veronica, Rahayu Budhiati Vita Istihapsari Vita Istihapsari Vita Istihapsari, Vita Wahyudi Wahyudi, Rachmat Satrio Wahyuningtyas, Febriana Wardono Wardono Widiyaningsih, Budi Wiyanto - Y. L. Sukestiyarno Y. L. Sukestiyarno Y.L Sukestiyarno YL Sukestiyarno Yulianto, Agus Wayan Yusfita Yusuf Zaenuri Mastur