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All Journal JURNAL DERIVAT: JURNAL MATEMATIKA DAN PENDIDIKAN MATEMATIKA AKSIOMA: Jurnal Program Studi Pendidikan Matematika Jurnal Gantang PRISMA Jurnal Kajian Matematika dan Aplikasinya Room of Civil Society Development GEMBIRA (Pengabdian Kepada Masyarakat) Room of Civil Social Development
HAFIIZH, MOCHAMMAD
Universitas Negeri Malang
Religion Arts Humanities Civil Engineering, Building, Construction & Architecture Education Law, Crime, Criminology & Criminal Justice Mathematics Social Sciences Other

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Pengenalan Media Manipulatif untuk Mendukung Konsep Matematika pada Siswa Kelas XII SMA Negeri 1 Gondang Nganjuk Dewi Utami, Anita; Rustanto Rahardi; Mochammad Hafiizh; Lucky Tri Oktaviana
Room of Civil Society Development Vol. 2 No. 2 (2023): Room of Civil Society Development
Publisher : Lembaga Riset dan Inovasi Masyarakat Madani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59110/rcsd.170

Abstract

Media manipulatif merupakan berbagai jenis benda yang dapat dimanipulasi untuk membantu siswa dalam memahami konsep matematis. Tujuan dari pengabdian ini adalah mengenalkan media manipulatif untuk mendukung pemahaman konsep matematis pada Siswa SMA Negeri 1 Gondang Nganjuk. Metode yang digunakan melalui empat tahap yaitu tahap pertama adalah persiapan tim dari Departemen Matematika. Tahap kedua adalah diskusi antar tim pengabdi tentang pemanfaatan media manipulatif. Tahap ketiga adalah koordinasi antara tim pengabdi dengan pihak sekolah. Tahap keempat yaitu penyampaian pemateri kepada siswa kelas XII SMA Negeri 1 Gondang Nganjuk. Pengabdian telah terlaksana dengan cukup baik. Hal ini dapat dilihat dari partisipasi mitra dalam pelaksanaan kegiatan pkm sangat antusias dan aktif. Tingkat keberhasilan pkm ini didasarkan pada indikator partisipasi peserta dalam pelaksanaan kegiatan dan daya serap peserta dari materi yang diberikan yaitu: (1) partisipasi peserta sangat tinggi, telah dibuktikan dengan kehadiran siswa pada kegiatan secara penuh dan selalu aktif mengemukakan pendapat serta antusias saat pelaksanaan. (2) Daya serap peserta pkm dalam penguasaan membuat media manipulatif memiliki rata-rata baik.
An Analysis of Grade XI Students’ Errors in Solving Statistical Problems Based on Newman Error Analysis (NEA) Theory Atiqa Firdaus; Subanji Subanji; Mochammad Hafiizh
PRISMA Vol. 15 No. 1 (2026): PRISMA
Publisher : Universitas Suryakancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35194/jp.v15i1.5845

Abstract

This study aims to analyze the mistakes of grade XI students in solving statistical problems based on the Newman Error Analysis (NEA) stages. The research method used is qualitative descriptive with the research subjects of 30 high school students in Praya for the 2025/2026 school year. Data were collected through descriptive tests, interviews, and documentation, then analyzed using the Miles and Huberman model through the stages of reduction, presentation and drawing of conclusions. The results showed that students still made mistakes at almost all stages of Newman, including: reading errors (0.64%), comprehension errors (22.29%), transformation errors (26.75%), process skills errors (23.56%), and encoding errors (26.75%). The most mistakes occur in the transformation and writing stages, while the least mistakes occur in the reading stage. Factors that cause student errors include lack of understanding of concepts, mistakes in choosing formulas, inaccuracy in calculations, and the habit of not writing conclusions. The results of this study are expected to be a guideline for teachers in developing more efficient learning strategies to reduce student errors in statistical materials.
Students' obstacles in solving mathematical literacy problems using the onto-semiotic approach Amanda, Adelia Tria; Hidayanto, Erry; Hafiizh, Mochammad
Jurnal Gantang Vol 11 No 1 (2026): Jurnal Gantang
Publisher : Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/jg.v11i1.8066

Abstract

Mathematical literacy is crucial for students, requiring both an understanding of mathematical concepts and the ability to apply them in solving diverse problems. However, students frequently encounter difficulties with mathematical literacy tasks, particularly those involving proportions, which may constitute learning obstacles. This study aims to identify and analyze students' learning obstacles in the context of mathematical literacy on the topic of proportions using an onto-semiotic approach. Qualitative research with a phenomenological approach was employed in this study, involving 27 eighth-grade students at a State Junior High School in Ngoro. Data collection techniques include tests, interviews, and documentation studies. Data analysis consisted of three stages: reduction, presentation, and conclusion. This study reveals three types of learning obstacles among students: (1) epistemological obstacles, which arise from students' limited understanding of concepts related to proportion; (2) ontogenic obstacles, which occur due to a leap in students' cognitive transition; and (3) didactical obstacles, which are caused by procedural teaching methods. Based on the onto-semiotic approach, the students had difficulty understanding mathematical language, defining mathematical ideas, applying the property of proportion, and performing appropriate procedures. This study provides insights that may assist teachers in designing more effective instructional strategies.
Co-Authors Amanda, Adelia Tria Amrul Maf'ula, Afia Anita Dewi Utami Asmianto Asmianto Atiqa Firdaus Dahliatul Hasanah Defri Ahmad Dhea Aranova Br Simatupang, Christine Dwi Roudhotillah Erry Hidayanto Fazrianto Suwarman, Ramdhan I Nengah Parta Imam Supeno Jamaliatul Badriyah Jawad, Muhammad Juliani Faisal, Nadila KRIDHA PUSADWIJAYANTI Laynufar Silsilia Alhila Lilik Muzdalifah Lucky Tri Oktaviana Maghfirah, Hidayatul muhammad khoiruman, muhammad Mukhammad Solikhin Nila Puspita Dewi NUR HAMID Rosevita Melati Rustanto Rahardi Sisworo Su'aibah, Siti Subanji Subanji Swasono Rahardjo Toto Nusantara Vita Kusumasari