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Journal : Mathematics Education Journal

Geometric Thinking Skills of Prospective Mathematics Teachers in the Transformation Geometry Course: Effects and Obstacles Mirna; Fauzan, Ahmad; Yarman; Arnawa, I Made; Lufri
Mathematics Education Journal Vol. 20 No. 1 (2026): Mathematics Education Journal
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

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Abstract

Geometry is a compulsory component of mathematics education worldwide; however, it remains one of the most challenging topics for prospective mathematics teachers, particularly transformation geometry. This study aims to examine the level of geometric thinking skills of prospective mathematics teachers based on Van Hiele’s theory, analyze their influence on the transformation geometry learning outcomes, and identify the prospective mathematics teachers’ learning obstacles. A mixed-methods approach research using an explanatory sequential design was employed. Data were collected from 99 prospective mathematics teachers enrolled in a Transformation Geometry course using geometric thinking skills test, transformation geometry learning outcomes test, and learning obstacles open-questionnaire. The data were analyzed using descriptive statistics and simple linear regression. The results indicate that most prospective teachers remain at lower Van Hiele levels, which are below the expected standards for future mathematics teachers. Geometric thinking skills were found to have a significant influence on transformation geometry learning outcomes. Prospective mathematics teachers simultaneously experience ontogenic, epistemological, and didactical obstacles. These findings imply that transformation geometry course should be aligned with students’ geometric thinking levels and supported by appropriate didactic designs. Therefore, future research about developing geometry didactic design based on Van Hiele’s theory in transformation geometry course is essential.
Co-Authors ., Jenizon Adityawarman Hidayat Admi Nazra Afniati, Ilhami Ahmad Fauzan Ahmad Fauzan Ahmad Fauzan Ali Asmar Armiati Arnellis Arnellis, Arnellis Asmar, Ali Asrar, Astari Atmazaki Atmazaki Ayu Selvia Azwir Anhar Bahri, Susila Bana Kartasasmita Bintang, As Cholis Sa’dijah Deciku, Belia DELLA, SEPTI RAHMA Dewi Murni Dony Permana Dwi Ratih Listiani Yusri Edwin Musdi Edy Tri Baskoro Elita Zusti Jamaan Elza Nora Yuliani Emi Suryani Putri Ermanto Ermanto Ermanto Ervinasari, Bunga Fadila Suciana Feby Rendani Firman Edi Fitri Andriani Hamdani, Vikri Handaru, Siti Mico Haswenova, Fadhilah Helma Helma Helma Helma Hendrajah, Apdyan Dwi HESTI SRI HANDANI Hidayah, Irma Rachmah I Ketut Ardana I Wayan Kartika Jaya Utama Indang Dewata Intan Parwati Pane Irwan Irwan Ismalyanti, Rima Ita Desnatalia Jamaan, Elita Zusti Johannes Ibrahim Kosasih Juandika, Suci Khairi, Hanif Khairunnisa, Nurul Maulina Khoberlin Khoberlin Laswadi Laswadi Lathifah Mudhiani Lathiful Anwar Leni, Nofri Liza Wulandari Lufri Lufri M.Si Dr. I Wayan Rinda Suardika,S.Pd . Meria Ultra Gusteti Mirna MUTHIA GUSRIATI muyassar a'la Nevi Nurmalasari Nova Noliza Bakar Novia Safitri Nunung Septriani Nurhadi, Muhammad Oskah Dakhi Pamio, Lisdiani Pane, Intan Parwati Permana, Dony Purwoko, Agus Putri May Windy Putri, Febby Fauzila Rasli, Amran Md. Rhomiy Handican Rusdi Rusdi Rusdi Sakinah, Hanifatus Shelvia Mandasari SILVIA MARTASARI Silvia Rahayu Silviana Ekasari Asmar Sri Wahyuni Suherman, Suherman Suparjo, Andi Syafrizal Wandi Syarifuddin, Hendra Unung Verawardina Utari sumarno Wirdaningsih, Sari Yanita Yanita Yarman Yarman Yarman Yarman Yarman Yarman, Yarman Yerizon Yerizon Yerizon Yerizon Yerizon Yuliana Shinta Yulyanti Harisman Yuswar, Tarinur ZAGOTO, MARIA MAGDALENA Zulfah, Endah