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All Journal Jurnal Media Informatika Journal Of Human And Education (JAHE)
Hutasoit, Tibelida
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Humanities Computer Science & IT Education Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Social Sciences Other

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Analisis Korelasi Kemampuan Berpikir Kritis Siswa Dalam Menyelesaikan Soal Numerasi di Kelas VIII SMPS Prayatna Medan Nainggolan, Helni Wirani; Aprina, Laura; Sitorus, Mika; Sembiring, Ramizulna Br; Hutasoit, Tibelida
Jurnal Media Informatika Vol. 6 No. 1 (2024): Jurnal Media Informatika Edisi September - Desember
Publisher : Lembaga Dongan Dosen

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This study aims to analyze students' critical thinking skills in solving numeracy-based problems. This research is a qualitative research type by taking students of grade VIII of SMPS Prayatna Medan as research subjects. The data used in this study were obtained by giving tests to students. The test sheet given contains numeracy-based problems. Based on the results of the study, it was found that the critical thinking skills of students at SMPS Prayatna Medan in solving numerical problems were still at a low level. Although the numeracy problems given have been designed to challenge critical thinking, the results obtained by students have not been maximized. This indicates a link between critical thinking skills and students' success in understanding and solving complex numeracy problems
Pengaruh Media Alat Peraga Trigovision Terhadap Pemahaman Konsep Matematika Siswa Pada Materi Trigonometri Sitorus, Mika W.; Hutasoit, Tibelida; Simbolon, Iwan M.; Siregar, Haikal T.; Khairuddin, Khairuddin
Journal Of Human And Education (JAHE) Vol. 6 No. 2 (2026): JAHE
Publisher : Universitas Pahlawan Tuanku Tambusai

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Penelitian ini bertujuan untuk menganalisis pengaruh media alat peraga TrigoVision terhadap pemahaman konsep matematika siswa pada materi trigonometri. Latar belakang penelitian berangkat dari kesulitan siswa dalam memvisualisasikan hubungan antara segitiga siku-siku, sudut rotasi, nilai fungsi trigonometri, serta lingkaran satuan. TrigoVision dikembangkan sebagai media visual integratif yang menampilkan representasi sudut 0°–360°, proyeksi sinus–cosinus, dan hubungan perbandingan sisi dalam satu model. Hasil penelitian menunjukkan bahwa siswa lebih memahami konsep secara signifikan, dengan nilai rata-rata siswa meningkat dari 27,35 pada pretest menjadi 61,33 pada posttest. Hasilnya menunjukkan bahwa TrigoVision menawarkan cara visual, konkret, dan bermakna untuk membantu siswa memahami konsep dasar trigonometri.
Co-Authors Aprina, Laura Khairuddin - Nainggolan, Helni Wirani Sembiring, Ramizulna Br Simbolon, Iwan M. Siregar, Haikal T. Sitorus, Mika Sitorus, Mika W.