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Journal : Journal of Education For Sustainable Innovation

Connected Mathematics Project in Vocational School: A Teaching Quality that Improves student's Mathematical Reasoning and Resilience Silfi Audina; Dede Salim Nahdi; Mohamad Gilar Jatisunda; Ujiati Cahyaningsih
Journal of Education For Sustainable Innovation Vol. 1 No. 1 (2023)
Publisher : Papanda Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56916/jesi.v1i1.485

Abstract

Mathematical reasoning and resilience are essential skills that students need to master in the process of learning mathematics. Both of these skills can be cultivated through instructional models that stimulate students to construct their own knowledge by connecting learning to the real world. One instructional model characterized by these aspects is the Connected Mathematics Project (CMP). Consequently, the purpose of this study is to analyze the effectiveness of the CMP instructional model in enhancing mathematical reasoning and resilience abilities. This research employs a quantitative approach utilizing a quasi-experimental design, specifically the nonequivalent posttest-only control group design. The study was conducted in one vocational high school in Majalengka. Sample selection was carried out using the cluster random sampling technique, resulting in a total of 18 students in the experimental group and 18 students in the control group. The research instruments comprised a mathematical reasoning ability test consisting of three open-ended test items and a mathematical resilience questionnaire. The findings of this study indicate that: (1) students' mathematical reasoning abilities in the CMP instructional model are higher compared to those in conventional instruction; (2) the average percentage of students' resilience attitudes in the CMP instructional model is higher than those in conventional instruction; and (3) CMP instruction is effective in improving both mathematical reasoning and resilience abilities among vocational high school students.
Mapping Geometric Minds: Exploring 3D Thinking Skills of Elementary School Students Using the Van Hiele Model Nahdi, Dede Salim; Jatisunda, Mohamad Gilar; Cahyaningsih, Ujiati; Rasyid, Abdur; Hidayah, Ratna
Journal of Education For Sustainable Innovation Vol. 2 No. 1 (2024)
Publisher : Papanda Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56916/jesi.v2i1.806

Abstract

This study investigates elementary school students' 3D geometric thinking skills using the Van Hiele model. The research employed a grounded theory approach, utilizing tests, observations, and interviews to assess students' geometric thinking levels across two elementary schools in West Java and Central Java, Indonesia. A total of 6 test items were developed based on Van Hiele's theory, targeting the visualization, analysis, and informal deduction levels. Results showed varied performance between the two schools. Students from the Majalengka school demonstrated stronger visualization skills (77.14%), while those from the Surakarta school showed better performance in analysis (67.86%) and informal deduction (53.57%). Overall, students exhibited a good foundational understanding of 3D shapes, with most achieving the visualization and analysis levels. However, challenges emerged at the informal deduction level, where students often opted for simpler problem-solving methods over more systematic approaches. The study highlights the effectiveness of the Van Hiele model in assessing geometric thinking development and provides valuable insights for curriculum development and teaching strategies. It emphasizes the need to reinforce visualization and analysis skills while gradually introducing more abstract and systematic thinking in geometry education. The findings contribute to the understanding of elementary students' 3D geometric thinking skills and offer a basis for improving geometry instruction at the primary level.
Co-Authors Abdul Kholiq Abdur Rasyid Abdur Rasyid, Abdur Adi Oksifa Rahma Harti Afief Fakhrudin Agus Rofi’i Aji Septiaji Anda Juanda Ansori, Yoyo Zakari Arif Rahman Hakim Asep Heri Saepuloh Atikah Mumpuni Audina, Silfi Aziziy, Yunia Nabila Dadan Ramdani Nugraha Dadang Sudirno Dadang Sudirno Damayanti, Indani Dela Rohimatunnisa Devi Afriyuni Yonanda Devi Afriyuni Yonanda Diah Khaerunisa Diding Bajuri, Diding Dinar Dinar Dindin Nasrudin dini widianingrum, dini Dudu Suhandi Saputra Eka Nurhidayat Enok Pipin Erika Noviana Febriyanto, Budi Fery Apriadi GUNAWAN, ENCEP ANGGUN Hani Sri Mulyani Hartoyo, Seika Reyina Ida Marina Indi Rahmawati, Pipit Indra Adi Budiman Ipin Aripin Ipin Aripin, Ipin Ira Nurlatifah Jatisunda, Gilar Juju . L Suparto LM Lies Shofia Sa'diah Lita Lita Majid, Sheikha Masduki Meliyanti Meliyanti Moh Salimi Mohamad Gilar Jatisunda Mohammad Gilar Jatisunda Mukarramah Mustari, Mukarramah Nina Nuraeni Nur Aulia Alfiani Nurfajriah, Riska Nurhidayat, Rafi Nurudin Araniri Nurul Fauziah Agustin Nuryani Rustaman R. Riandi, R. Rama Dwika Herdiawan Ratna Hidayah Regiana Nurman, Rachael Rohatul Fikriyah Safira Rohimatunisa, Dela Royan Fakhrurozi Silfi Audina Sri Umyati Sudianto, Sudianto Sudirno, Dadang Sugandi, M. Kurnia Suhandi Saputra , Dudu Sukmasari, Miftah Dieni Syarifah, Eva Fitriani Topik Hidayat Toto Sumianto Ubaedillah Ujiati Cahyaningsih Umar Dani Vici Suciawati Vitta Yaumul Hikmawati Wardani, Putri R Yeni dwi Kurino Yonanda, Devi Afriyuni Yoyo Zakaria Ansori Yulianti, Diana Yunia Nabila Aziziy Yuyu Yuliati Yuyun Dwi Haryanti Zuniarti, Piqiah Pariha