Samudera Efendi Marpaung
Universitas Negeri Medan

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Analisis Kesalahan Mahasiswa dalam Mengerjakan Latihan Soal Materi Ring pada Mata Kuliah Struktur Aljabar: Sebuah Kajian Mendalam Tentang Faktor-Faktor Yang Memengaruhinya Sri Lestari Manurung; Beby Nadia Nasution; Desti Rahel Ayunda Sihotang; Samudera Efendi Marpaung
Journal on Education Vol 6 No 4 (2024): Journal on Education: Volume 6 Nomor 4 Mei-Agustus 2024
Publisher : Departement of Mathematics Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joe.v6i4.6020

Abstract

This study is motivated by the presence of mistakes in solving Algebraic Structure problems, particularly on the topic of Ring. The purpose of this research is to analyze the mistakes made in solving Algebraic Structure problems, specifically on the topic of Ring at Universitas Negeri Medan. Mistakes are classified into conceptual errors, data usage errors, language interpretation errors, technical errors, and conclusion errors. The research method used is descriptive qualitative, involving three sixth-semester students of the academic year 2024/2025 with prior knowledge of the Ring topic. Data collection techniques included tests and open questionnaires. Data analysis was conducted through data reduction and categorization of error types. The results show various errors such as conceptual errors, technical errors, and conclusion errors. This research can serve as a recommendation for educators to be more proactive in assisting students in understanding the material through more effective and engaging teaching methods, as well as providing more in-depth training.
Pengaruh Model Pembelajaran Berbasis Masalah dengan Pendekatan Teaching at the Right Level Berbantuan Canva Terhadap Kemampuan Literasi Numerasi Siswa SMA Samudera Efendi Marpaung; Waminton Rajagukguk; Mukhtar; Erlinawaty Simanjuntak; Eri Widyastuti
Journal of Education Technology Information Social Sciences and Health Vol. 5 No. 2 (2026): September 2026
Publisher : CV. Rayyan Dwi Bharata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57235/jetish.v5i2.8425

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran berbasis masalah dengan pendekatan teaching at the right level berbantuan Canva terhadap kemampuan literasi numerasi siswa SMA. Jenis penelitian ini adalah kuantitatif menggunakan desain eksperimental semu (posttest only nonequivalent groups) dengan sampel dua kelas. Data dikumpulkan melalui hasil tes posttest kedua kelas dan dianalisis menggunakan uji nonparametrik Mann-Whitney U. Hasil penelitian menunjukkan nilai Asymp. Sig. (2-tailed) = 0.110 (> 0.05), sehingga tidak terdapat pengaruh yang signifikan dari penerapan model pembelajaran berbasis masalah dengan pendekatan teaching at the right level berbantuan Canva terhadap kemampuan literasi numerasi siswa SMA. Penelitian selanjutnya disarankan memberikan perlakuan lebih lama lagi serta mengombinasikan model dengan pendekatan lain agar hasilnya lebih optimal.