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All Journal Jurnal Pendidikan dan Sastra Inggris Dinamis: Jurnal Inovasi dan Transformasi Pendidikan
Reva Lenita Girsang
Universitas Negeri Medan
Education

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Analisis Kesalahan dan Kendala Siswa/i SMA Citra Harapan Percut dalam Menyelesaikan Sistem Persamaan Linear Dua Variabel (SPLDV) serta Solusi Pembelajarannya Kairuddin Kairuddin; Naftali Marbun; Renata Siburian; Jona Mikhael Hutagaol; Artorito Sitorus; Reva Lenita Girsang; Mirna Wulan Sari Sianipar
Jurnal Pendidikan dan Sastra Inggris Vol. 5 No. 3 (2025): Jurnal Pendidikan dan Sastra Inggris
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jupensi.v5i3.6089

Abstract

This study aims to explore in depth the errors and obstacles experienced by students in learning the System of Linear Equations in Two Variables (SLSV), and to provide strategic solutions to improve their understanding and skills. SLSV is a fundamental topic that is very important for developing logical and analytical thinking skills. However, various studies show that students, especially at the vocational high school level, still face significant challenges, particularly when converting story problems into mathematical models, formulating strategies, and being thorough in completing the process. This study applies a qualitative descriptive method involving 25 students from grade X of SMK Swasta Citra Harapan located in Deli Serdang Regency. Primary data were collected through written tests (pre-test and post-test) and interviews with mathematics teachers. The findings of this study indicate that students' initial understanding of SLSV is still minimal, as reflected in the low percentage of correct answers in the pre-test (Problem 1: 32%; Problem 2: 48%). The most frequent errors made by students include the inability to convert story problems into mathematical models, errors in the elimination or substitution process, and errors in algebraic operations. The proposed approach is to implement integrated learning strategies, including Problem-Based Learning (PBL) to reinforce concepts, the use of interactive media to provide motivation, and the habit of systematically recording steps through the Think Talk Write (TTW) approach to improve procedural skills and the accuracy of answers. This study concludes that successful mastery of SPLDV requires a comprehensive strategy that combines conceptual, procedural, and motivational aspects.
PENGEMBANGAN MEDIA PEMBELAJARAN 3D BERBASIS VIRTUAL REALITY (VR) PADA MATERI GEOMETRI EUCLID DAN NON-EUCLID MENGGUNAKAN DELIGHTEX EDU DENGAN PENDEKATAN EVALUATIF KELAS XI DI SMAN 2 PERCUT SEI TUAN Jona Mikhael Hutagaol; Reva Lenita Girsang; Esther Veronica Putri Siregar; Fevi Rahmawati Suwanto
Dinamis : Jurnal Inovasi dan Transformasi Pendidikan Vol. 1 No. 2 (2026): Juni: Dinamis: Jurnal Inovasi dan Transformasi Pendidikan
Publisher : Lembaga Penerbit Penelitian Multidisipliner

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.67096/dinamis.v1i2.172

Abstract

Penelitian ini bertujuan untuk mengembangkan media pembelajaran 3D berbasis Virtual Reality (VR) menggunakan Delightex Edu pada materi Geometri Euclid dan Non-Euclid di kelas XI SMAN 2 Percut Sei Tuan. Latar belakang penelitian ini didasarkan pada rendahnya pemahaman siswa terhadap konsep geometri yang bersifat abstrak serta masih dominannya penggunaan metode pembelajaran konvensional. Penelitian ini menggunakan metode Research and Development (R&D) dengan model pengembangan ADDIE yang meliputi tahap Analysis, Design, Development, Implementation, dan Evaluation. Subjek penelitian terdiri atas 20 siswa kelas XI SMAN 2 Percut Sei Tuan. Teknik pengumpulan data dilakukan melalui observasi, angket respon siswa, dan lembar validasi media. Hasil penelitian menunjukkan bahwa media pembelajaran berbasis Virtual Reality memperoleh respon positif dari siswa. Pada aspek pemahaman materi, mayoritas siswa menyatakan bahwa media membantu memahami konsep geometri secara lebih mudah melalui visualisasi tiga dimensi yang interaktif. Pada aspek tampilan dan pengalaman pengguna, media dinilai memiliki desain menarik, navigasi yang mudah digunakan, serta model 3D yang jelas. Selain itu, pada aspek ketertarikan dan manfaat, media pembelajaran mampu meningkatkan minat, motivasi, dan keterlibatan siswa dalam proses pembelajaran matematika. Berdasarkan hasil penelitian, dapat disimpulkan bahwa media pembelajaran 3D berbasis Virtual Reality menggunakan Delightex Edu dinilai layak, menarik, dan efektif digunakan dalam pembelajaran Geometri Euclid dan Non-Euclid. Media ini dapat menjadi alternatif inovatif dalam membantu meningkatkan pemahaman konsep geometri serta menciptakan pengalaman belajar yang lebih interaktif dan menyenangkan bagi siswa.
Co-Authors Artorito Sitorus Esther Veronica Putri Siregar Fevi Rahmawati Suwanto Jona Mikhael Hutagaol Kairuddin . Mirna Wulan Sari Sianipar Naftali Marbun Renata Siburian