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All Journal EDUPEDIKA CONSISTAN : Jurnal Tadris Matematika
Izza Della Nur Rizki
Universitas Sriwijaya
Education Mathematics

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Analisis Kesalahan Siswa dalam Menyelesaikan Masalah Program Linear Berdasarkan Newman’s Error Analysis Afdal Windu Wijaya; Amelia Handayani; Elisabeth Wijaya; Erina Ika Fadilla; Izza Della Nur Rizki; Natanael Putera Rasjid Ginting; Neina Suci Radhani; M. Hasbi Ramadhan; Somakim; Yovika Sukma
CONSISTAN (Jurnal Tadris Matematika) Vol 4 No 01 (2026): Consistan : Jurnal Tadris Matematika
Publisher : Program Studi Tadris Matematika Fakultas Tarbiyah Institut Agama Islam Al-Qolam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35897/consistan.v4i01.2585

Abstract

In solving problems regarding linear programs, errors are often found, especially in determining feasible areas and optimum solutions. This research aims to analyze student errors in solving linear program problems using the LKPD-based Newman’s Error Analysis approach in the context of optimizing pempek production. This research used a qualitative descriptive method with the research subjects of three class X high school students selected based on test results. The instruments used are LKPDs that have gone through an expert validation stage (expert review) and problem-solving tests. Data analysis is carried out through data reduction, data presentation, and drawing conclusions based on Newman’s five stages, namely reading, comprehension, transformation, process skills, and encoding. The research results show that the most dominant errors occurred at the encoding stage, while process skills errors were only found in one research subject. These findings show that students still have difficulty understanding the concept of feasible regions and determining optimum solutions to linear programming problems. This research contributes as a basis for developing contextual LKPD-based linear programming learning and as evaluation material for teachers to get students used to writing complete and precise mathematical conclusions in solving linear programming problems. This research is expected to be the basis for designing more effective learning to minimize student errors.
Pengembangan LKPD Berbasis Alat Peraga Bernoulli Box untuk Mengenalkan Konsep Distribusi Bernoulli Izza Della Nur Rizki; Nabila Salsabila; Neina Suci Radhani; Putri Nur Erina Sukasna; Siti Nayla Fanisha; Ratu Ilma Indra Putri; Novita Sari; Yovika Sukma; Rahma Siska Utari
EDUPEDIKA: Jurnal Studi Pendidikan dan Pembelajaran Vol. 5 No. 1 (2026): Februari 2026
Publisher : PELITA NUSA TENGGARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60004/edupedika.v5i1.473

Abstract

Pembelajaran konsep distribusi Bernoulli masih dirasakan abstrak oleh mahasiswa sehingga diperlukan media konkret yang dapat menjembatani pemahaman antara teori dan pengalaman empiris. Penelitian ini bertujuan mengembangkan media Bernoulli Box berbantuan LKPD untuk mengenalkan konsep dasar Distribusi Bernoulli serta mengetahui validitas dan kepraktisan produk yang dikembangkan. Metode penelitian menggunakan Design Research tipe Development Studies yang meliputi preliminary phase dan prototyping phase melalui self-evaluation, expert review, one-to-one, dan small group. Subjek penelitian yaitu sembilan mahasiswa semester 1 Program Studi Pendidikan Matematika Universitas Sriwijaya yang dipilih secara purposive. Data dikumpulkan melalui walkthrough, lembar validasi, observasi, tes dalam LKPD, wawancara, dan angket kepraktisan, kemudian dianalisis secara deskriptif. Hasil validasi ahli menunjukkan bahwa Bernoulli Box dan LKPD memiliki validitas isi, konstruk, dan bahasa yang baik. Uji one-to-one dan small group menunjukkan bahwa mahasiswa mampu mengikuti aktivitas dalam LKPD secara mandiri dan memahami dua kemungkinan hasil percobaan Bernoulli dengan benar. Hasil angket kepraktisan memperoleh persentase 98,08% yang termasuk kategori sangat praktis. Dengan demikian, media dan LKPD yang dikembangkan layak digunakan sebagai alternatif pembelajaran untuk memperkuat pemahaman konsep Distribusi Bernoulli.
Co-Authors Afdal Windu Wijaya Amelia Handayani Elisabeth Wijaya Erina Ika Fadilla M. Hasbi Ramadhan Nabila Salsabila Natanael Putera Rasjid Ginting Neina Suci Radhani Novita Sari Putri Nur Erina Sukasna Rahma Siska Utari Ratu Ilma Indra Putri Siti Nayla Fanisha Somakim, Somakim Yovika Sukma Yovika Sukma