Lusiana Prastiwi
Universitas Dr. Soetomo

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Pengembangan LKPD Berbasis Problem Based Learning untuk Meningkatkan Kemampuan Pemecahan Masalah pada Materi Barisan dan Deret Lailatul Cahya Wardani; Sulis Janu Hartati; Lusiana Prastiwi
JURNAL PENDIDIKAN MIPA Vol 14 No 2 (2024): JURNAL PENDIDIKAN MIPA
Publisher : Pusat Publikasi Ilmiah, STKIP Taman Siswa Bima

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37630/jpm.v14i2.1621

Abstract

Penelitian ini memiliki tujuan untuk mengembangkan LKPD berbasis problem based learning untuk meningkatkan kemampuan pemecahan masalah pada materi barisan dan deret serta untuk mengetahui perbedaan rata-rata hasil belajar peserta didik sebelum dan sesudah diterapkannya LKPD berbasis problem based learning pada materi barisan dan deret. Jenis penelitian yang digunakan yakni penelitian dan pengembangan (Research and Development) dengan menggunakan model pengembangan 4D yang terdiri dari empat tahapan yakni Define, Design, Development, dan Dissemination. Namun, penelitian ini hanya sampai pada tahap Development karena penelitian ini terbatas pada uji laboratorium. Hasil uji kelayakan LKPD yang dikembangkan yakni untuk validasi ahli materi sebesar 93,85% (sangat layak) dan untuk validasi ahli media sebesar 96,67% (sangat layak). Hasil uji paired sample t-test yakni 0.000 < 0.05 yang artinya terdapat perbedaan rata-rata hasil belajar peserta didik sebelum dan sesudah diterapkannya LKPD berbasis problem based learning pada materi barisan dan deret. Dengan demikian, dapat disimpulkan bahwa LKPD yang dikembangkan telah dinyatakan sangat layak dan LKPD yang dikembangkan dapat meningkatkan meningkatkan kemampuan pemecahan masalah peserta didik.
Pola Kesalahan Siswa Pada Materi Peluang: Kajian Teori Newman Berdasarkan Gaya Kognitif Ananda Wahyu Sailia Putri; Lusiana Prastiwi; Dedi Rahman Siolimbona
J-PiMat : Jurnal Pendidikan Matematika Vol 8, No 1 (2026): J-PiMat
Publisher : Prodi Pendidikan Matematika STKIP Persada Khatu;istiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/j-pimat.v8i1.6254

Abstract

The high perception of difficulty in mathematics stems from its abstract nature, leading to a high rate of student errors. One factor influencing this is individual cognitive style. This study aims to examine students errors in solving probability problems using the Newman procedure from a cognitive style perspective. This study employs a descriptive qualitative approach. Data were collection through the GEFT test, a written probability test, and semi structured interviews. The research subjects consisted of two student from class XII-3 selected through purposive sampling based on following criteria: (1) into the field-independent or field-dependent category, (2) have a good comunication according to the teachers instructions. Data analysis was conducted through the stages of data reduction, data presentation, and conclusion drawing. The findings reveal that students with a field independent cognitive style made errors in transformation, process skills, and encoding. Meanwhile, students with a field dependent cognitive style made errors in comprehension, transformation, process skills, and encoding. These errors were caused by limited mastery of the material, low accuracy, and external influences. The result are expected to assist teachers in designing instructional strategies aligned with students cognitive style to reduce error in problem solving.Keywords: Newman Error Analysis, Probability, Cognitive Style
Profil Literasi Matematika Peserta Didik Pada AKM Berdasarkan Gaya Belajar KOLB Hufadz Iftitahul Jamili; Sumartono Sumartono; Lusiana Prastiwi
J-PiMat : Jurnal Pendidikan Matematika Vol 8, No 1 (2026): J-PiMat
Publisher : Prodi Pendidikan Matematika STKIP Persada Khatu;istiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/j-pimat.v8i1.6251

Abstract

Mathematical literacy is one of the fundamental skills that students must possess to meet the challenges of the 21st century, particularly in solving contextual problems. This study aims to analyze the mathematical literacy skills of Phase F students in solving AKM questions as viewed through Kolb’s learning styles. This is a descriptive qualitative study conducted in the 11th-grade class at Dr. Soetomo High School in Surabaya. It consisted of four subjects selected using purposive sampling to represent each learning style. Data collection was conducted through the administration of the KLSI 3.1 learning style questionnaire, a mathematical literacy test, and interviews. The research results generally indicate that students with high mathematical literacy skills were able to meet all indicators, such as converging, assimilating, and accommodating learners. Diverging learners (DL) tended to feel bored, resulting in a lack of focus and difficulties in performing calculations. Converging learners (SC) are able to analyze information and apply mathematical concepts systematically. Assimilating learners (SAs) are able to analyze information logically, provide structured answers, and interpret results effectively. Accommodating learners (SAc) are able to analyze information and tend to solve problems based on prior learning experiences. The findings of this study indicate that differences in learning styles influence how students analyze and solve mathematical problems, which can serve as a consideration for teachers in designing instruction.Keyword: Mathematical Literacy, AKM, Kolb Learning Styles