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All Journal JURNAL PENDIDIKAN TAMBUSAI JDIME: Journal of Development and Innovation in Mathematics Education
Sinurat, Putra Paulus Glenn Niel
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Education Mathematics Social Sciences Other

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Analisis Kemampuan Berpikir Kritis Mahasiswa dalam Penyelesaian Soal Subgrup Normal Sinurat, Putra Paulus Glenn Niel; Manurung, Sri Lestari; Manurung, Hendra Cahyadi; Berutu, Jhosua
Jurnal Pendidikan Tambusai Vol. 9 No. 1 (2025)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v9i1.26096

Abstract

Kemampuan berpikir kritis merupakan keterampilan kognitif yang esensial dalam pembelajaran matematika, khususnya dalam memahami konsep abstrak seperti subgrup normal dalam teori grup. Penelitian ini bertujuan untuk menganalisis tingkat kemampuan berpikir kritis mahasiswa dalam menyelesaikan soal subgrup normal. Metode yang digunakan adalah penelitian deskriptif kualitatif dengan subjek mahasiswa jurusan Pendidikan Fisika Universitas Negeri Medan angkatan 2022, Data dikumpulkan melalui tes tertulis dan wawancara, kemudian dianalisis berdasarkan tingkatan berpikir kritis yang meliputi interpretasi, analisis, evaluasi, dan inferensi. Hasil penelitian menunjukkan bahwa mahasiswa dengan kemampuan tinggi mampu mencapai tingkat evaluasi, sedangkan mahasiswa dengan kemampuan rendah hanya berada pada tingkat awal. Kesulitan yang dihadapi mahasiswa meliputi kurangnya pemahaman terhadap properti grup, penggunaan teorema yang tidak tepat, serta kesulitan dalam menarik kesimpulan logis. Hasil ini mengindikasikan perlunya strategi pembelajaran yang lebih efektif untuk meningkatkan kemampuan berpikir kritis mahasiswa dalam memahami dan menerapkan konsep subgrup normal.
Development of Geogebra Mathematics Learning Media on Exponential and Logarithmic Function Topics Manurung, Hendra Cahyadi; Berutu, Jhosua; Turnip, Leonardo; Sinurat, Putra Paulus Glenn Niel; Suwanto, Fevi Rahmawati
JDIME: Journal of Development and Innovation in Mathematics Education Vol. 2 No. 1 (2024): Journal of Development and Innovation in Mathematics Education
Publisher : Insitut Agama Islam Negeri Kerinci

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32939/jdime.v2i1.3255

Abstract

Information Technology really supports the teaching and learning process in mathematics learning, but in reality there are still very few teachers who use ICT in learning activities, even though if teachers use ICT in the learning process it can help students and teachers in learning mathematics. This research aims to determine the effect of multimedia mathematics learning assisted by the Geogebra application on students' conceptual understanding of exponential and logarithmic function material. The research method used is Research and Development (R&D), referring to the ADDIE development model. The subject of this research was carried out at SMA Negeri 1 SILIMAKUTA class X-3. The instruments used are student online response questionnaires, teacher online response questionnaires. Based on the results of testing the development of teaching materials assisted by Geogebra in learning exponential and logarithmic functions, from all aspects of statements from student response questionnaires and teacher responses, the average response percentage was 89.7%. Thus, the high percentage of student responses proves that the development of mathematics learning media assisted by Geogebra can increase students' understanding of concepts and can be used effectively and practically as an additional reference for mathematics learning media, especially material on exponential and logarithmic functions. The implication is that if every lesson uses the right media, it will increase students' learning motivation and improve their learning achievement.
Co-Authors Berutu, Jhosua Manurung, Hendra Cahyadi Sri Lestari Manurung, Sri Lestari Suwanto, Fevi Rahmawati Turnip, Leonardo