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Ermawati
Bagian Obgyn FK Unand
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Journal : JPLED

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Development of Differentiated Mathematics E-books Based on Langkat Malay Culture to Improve Students' Functional Thinking and Critical Thinking Skills Marhamah Hasibuan, Ainul; Fauzi; Ermawati
Journal of Practice Learning and Educational Development Vol. 5 No. 4 (2025): Journal of Practice Learning and Educational Development (JPLED)
Publisher : Global Action and Education for Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58737/jpled.v5i4.878

Abstract

This study aims to develop a differentiated mathematics e-book based on Langkat Malay culture that is feasible, effective, and practical in improving the functional thinking and critical thinking abilities of junior high school students. The research method used is Research and Development (R&D) with the 4-D Thiagarajan model which includes the stages of define, design, develop, and disseminate. The research subjects were students of Private Junior High School PAB 13 Langkat, with data obtained through functional thinking and critical thinking tests, expert validation questionnaires, and teacher and student response questionnaires. The results of the study showed that from the aspect of feasibility, validation by material, language, and design experts obtained an average percentage of 88.6% which is included in the very feasible category. From the aspect of effectiveness, the use of e-books is proven to improve functional thinking abilities with an average N-Gain of 0.70 and critical thinking abilities with an average N-Gain of 0.72, both of which are included in the effective category. In terms of practicality, teachers responded 89.3% and students 87.9%, with an average of 88.6%, which is considered very practical. Therefore, the differentiated mathematics e-book based on Langkat Malay culture can be used as an alternative innovative teaching material that is not only in line with the curriculum but also culturally relevant, and able to improve students' higher-order thinking skills. This product has the potential to contribute to enriching mathematics learning resources that are contextual, interactive, and support 21st-century learning.
Co-Authors Abdul Jalil Adnan Sauddin Agusnimar Agust Dwi Djajanti Al Edy Dawu andi ichi ramadanti Andi Ria Metasari Andri Afriadi Angel Saputri Andi Muin Anugrawati, Sri Dewi Arif Siaha Widodo Arifin Atina Yoso Negara, Artadinah Awaluddin Tjalla Ayu Anggraeni Azmansyah Badarussyamsi Bakri, Nurjannah Basri, Nurzarina Budiyanto Damiasih Dede Arseyani Pratamasyari Delvi Sara JIhan Deni Dewi Furwana Dewi Mulfiyanti Dhandy Dharmawan Diago Armando Guru Singa Duppa, Muhammad Taufiq dupppa, muhammad taufiq Dwiutami Wahyuni, Lussy Edy, Akari Eka Damayanti Elpira, Fifi Eman Sulaeman Erna Fachry Abda El Rahman Fadhli Palaha Faizah Fakhroz, Irzal Fatmasari, Siti Fauzan Nursyawal FAUZI Feri Nopriansa Fidia Ditazam Malik Fitrah Ramadani Gevisioner Gitarja Sandi Hamzah, Irfan Kurniadi Harda Arya, Engla Harningsih Karim Hasriani Herry Susanto Hidayat Pujisiswanto Husnaini Ida Ayu Putu Sri Widnyani Indriyani IRHAM PAKKAWARU Ivan Suaidi Jaya, Andi Indra Kalsum Kamri, Syamsul Kardova, Toriq La Ode Liaumin Azim Langi, Nurdiana Tandi Machdalena Madehang Maharmi, Benriwati Marhamah Hasibuan, Ainul Masri, Anshari Maulana Zulkarnain Imansyah Ma’rifah Nurmala Moch Irwan Hermanto Mochammad Syahfril Moharom Monik Kasman Muhammad Tahir Murniati Ruslan Mursyid Nirwana Ibrahim Nisa, Khaerun Nurfadilah, Khalilah Nurfatma Awalliyah Habib Nurhidayah Nurjanna, Sitti Orna Waty Faradilla Pandu Wijaya, Riko Piliana, Wa Ode Pratiwi Putri Lestari Tri putriazizah azizah Rafnelly Rafki Ramadiana, Sri Rinda Lestari Ririn Safitri Risfandi Risnawati Ibnas Riza Laely Ikayanti Rizki Amalia Roslindah Daeng Siang Rukman, Wira Yustika Rustan Santaria Saasa Saipul Bahri Santi Budiman Sari Puspita Selvia Sutriana Siti Nur Hidayati Soimun Rohman Sriwidyastuti Sugeng Santoso Suherman, La Ode Achmad Sukirawati SUMARNI Suryani Suryani Susilawati Syafruddin Wa Ode Nurmila Wahibah Wahidah Alwi Wahidah Alwi Widiastika Suartawa Yolnasdi, Yolnasdi Yuliany, Nur Yunistira Yusriyani Yuyun Sri Wahyuni