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All Journal Cakrawala Pendidikan JPMS (Jurnal Pendidikan Matematika dan Sains) Jurnal Pendidikan Matematika AKSIOMA: Jurnal Program Studi Pendidikan Matematika Jurnal Daya Matematis Jurnal Elemen Jurnal Terapan Abdimas Jurnal Gantang Al-Jabar : Jurnal Pendidikan Matematika HISTOGRAM: Jurnal Pendidikan Matematika Pendas : Jurnah Ilmiah Pendidikan Dasar JTAM (Jurnal Teori dan Aplikasi Matematika) Indiktika : Jurnal Inovasi Pendidikan Matematika Jurnal Review Pendidikan dan Pengajaran (JRPP) Lentera Sriwijaya : Jurnal Ilmiah Pendidikan Matematika Journal of Education and Learning Mathematics Research (JELMaR) PROGRES PENDIDIKAN Jurnal Anugerah: Jurnal Pengabdian Kepada Masyarakat Bidang Keguruan dan Ilmu Pendidikan Mosharafa: Jurnal Pendidikan Matematika Kognitif: Jurnal Riset HOTS Pendidikan Matematika Jurnal Abdi Masyarakat Indonesia Jurnal Kajian Pembelajaran dan Keilmuan DIKMAT: Jurnal Pendidikan Matematika Inovasi Matematika (Inomatika) Edumatica: Jurnal Pendidikan Matematika Mathematics Education Journal Journal on Mathematics Education Jurnal VARIDIKA SJME (Supremum Journal of Mathematics Education) Media Pendidikan Matematika
Cecil Hiltrimartin
Unknown Affiliation
Humanities Computer Science & IT Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Mathematics Physics Public Health Social Sciences Other

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Journal : Jurnal Elemen

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Investigating lower secondary school students’ geometric argumentation structure using Toulmin model Ramandani, M. Rizky; Hartono, Yusuf; Hiltrimartin, Cecil; Aisyah, Nyimas
Jurnal Elemen Vol 10 No 2 (2024): May
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jel.v10i2.24116

Abstract

Geometric argumentation has an important role in solving mathematical problems in geometric material, so students must have this ability. Each student has different thoughts, including when stating arguments. Each student's arguments will vary and be at different levels. This study aims to determine the levels of lower secondary school students' geometric argumentation. This research was conducted in a lower secondary school involving 20 ninth-grade students. Students participating in this study were asked to work on geometry problems related to proof. Through the proofs carried out, the argumentation structure owned by students is visible. The structures of argumentation given by the students were then analysed using Toulmin's model of argumentation.  The components of the Toulmin model used consist of claim, data, warrant, and backing.  The results of the analysis of the proof prepared by the students stated that some of the students have been able to reach a high level of geometric argumentation and can compile a series of proofs. But not a few of them also have difficulty compiling the proof, have difficulty providing the components of the Toulmin model, and make some mistakes. Errors made by students include symbol writing errors, calculation errors, and others.
Microlearning-based media of probability: An innovative student worksheet Novi Komariyatiningsih; Yusuf Hartono; Ratu Ilma Indra Putri; Cecil Hiltrimartin
Jurnal Elemen Vol 11 No 2 (2025): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jel.v11i2.27600

Abstract

The constraint on reasoning ability among Indonesian mathematics students is a pressing issue. Several study results show that students' low mathematical reasoning is due to a lack of conceptual understanding of the material being studied. Probability is one of the materials that can help mathematical reasoning. There is a sample space that requires students' reasoning ability to determine all possible outcomes. This study aims to design a microlearning-based learning on probability material using the culinary tourism context of Prabumulih City that is integrated into student worksheet, which is valid and practical to help students learn the probability in phase E and train their reasoning skills by PMRI (Indonesian Realistic Mathematics Education). This study was a qualitative method of development study type, consisting of two stages: preliminary study and formative evaluation. The subject of this study was 36 tenth-grade. The data collection techniques were observation, tests, and interviews, which were analyzed descriptively. This research produced a student worksheet that was valid and practical and integrated with microlearning media (comic, video) on probability material using the culinary tourism context of Prabumulih City, Indonesia. Based on data analysis, this worksheet can improve students' conceptual understanding and reasoning abilities.
Co-Authors Adeulliah, Novie Agustarina, Mitta Araiku, Jeri Aziza, Difa Azka, Dea Alvionita Azka, Dea Alvionita Basa, Zahra Alhumairah Darmawijoyo, Darmawijoyo Desvitasari, Tria Dina Octaria Dina Octaria Diva, Karen Dwi Budi Santoso Ely Susanti Ely Susanti, Ely Erpina, Reppy Ety Septiati Farida Aryani Fauzie, Fauzie Firaisti, Sicilia Freti Lesiana Giani Giani Hadi Nasbey Hapizah Ida Sriyanti Indaryanti Indaryanti Ismet Ismet, Ismet Ketang Wiyono Kodri Madang Komariyatiningsih, Novi Kurniadi, Elika Made Sukaryawan Maharani, Annisa Dwi Maharani, Levana Manulang, Lilis Sri Jayanti Meilinda Meilinda Meriza, Dyna Meryansumayeka Meryansumayeka Muhamad Ikhsan Sahal Guntur Mulyono, Budi N. Fahriza Fuadiah Najmi Wahyuni Norma Setiawati, Norma Novi Komariyatiningsih Nurul Ain Safura Nurwijayanti Nyimas Aisyah Nyimas Aisyah Okta, Miko Oktaria, Pelinsia Oktaviani, Sherly Pratiwi, Weni Dwi Putri, Amelia Defrianti Putri, Debi Suci Rahma Amsar Napenty Rahma Siska Utari Ramandani, M. Rizky Ratu Ilma Indra Putri Riduan, Lindawaty Safegi, Jihan Della Sanita, Eka Sari, Arika Sari, Nopi Nopa Sary Silvhiany Scristia Scristia, Scristia Somakim, Somakim Sri Sumarni Sukmaningtyas, Novika Susanty, Ely Theresia Ingga Sari titin wijayanti Utami, Putri Indah Widioktafarani, Hanny Wulandari, Trisna Yenny Anwar Yesi Arianti, Yesi Yusuf Hartono Zuli Nuraeni Zulkardi Zulkardi Zulkardi Zulkardi Zulkardi