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All Journal Beta: Jurnal Tadris Matematika Jurnal Pengabdian Magister Pendidikan IPA Jurnal Ilmiah Profesi Pendidikan Mandalika Mathematics and Educations Journal Griya Journal of Mathematics Education and Application Evolusi: Journal of Mathematics and Natural Sciences Rengganis Jurnal Pengabdian Masyarakat Unram Journal of Community Service (UJCS) Jurnal Pijar MIPA Lambda: Jurnal Ilmiah Pendidikan MIPA dan Aplikasinya Al-Irsyad Journal of Mathematics Education
Ketut Sarjana
Universitas Mataram
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Law, Crime, Criminology & Criminal Justice Mathematics Physics Public Health Social Sciences Other

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Analisis Kemampuan Pemecahan Masalah Matematika Berdasarkan Teori APOS Ditinjau dari Tipe Kepribadian David Keirsey Maulida Yuniarti; Ketut Sarjana; Nilza Humaira Salsabila
Lambda: Jurnal Ilmiah Pendidikan MIPA dan Aplikasinya Vol. 5 No. 2 (2025): Lambda : Jurnal Ilmiah Pendidikan MIPA dan Aplikasinya
Publisher : Lembaga Bale Literasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58218/lambda.v5i2.1672

Abstract

One of the objectives of mathematics learning is to equip students with problem-solving skills. Each student has different abilities in solving problems, and one of the influencing factors is personality. This study aims to describe students' mathematical problem-solving abilities based on the APOS theory (Action, Process, Object, Schema) in terms of David Keirsey's personality types among eighth-grade students at MTs Negeri 1 Lombok Timur in the 2024/2025 academic year. This research uses a qualitative approach with purposive sampling as the technique for determining research subjects. Data collection was carried out through questionnaires, tests, interviews, and documentation. The results showed that the guardian-type subject was only able to complete 3 out of 4 APOS stages: action, process, and object. The artisan-type subject was only able to complete 2 out of 4 APOS stages: action and process. The rational-type subject was able to complete all APOS stages: action, process, object, and schema. The idealist-type subject was also able to complete all APOS stages: action, process, object, and schema. Thus, it can be concluded that subjects with rational and idealist personality types have better problem-solving abilities than those with guardian and artisan personality types.
Profil Kesalahan Proses Berpikir Matematis Mahasiswa Berdasarkan Tahapan Berpikir Mason Ketut Sarjana; Gilang Primajati; Ulfa Lu'luilmaknun; Ni Made Intan Kertiyani; Eka Kurniawan; Dea Nadia
Mandalika Mathematics and Educations Journal Vol 8 No 2 (2026): Edisi Juni
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v8i2.12592

Abstract

Mathematical proof is an essential competency for prospective mathematics teachers because it is closely related to reasoning and mathematical thinking skills. This study aimed to describe the profile of students' mathematical thinking errors based on Mason's thinking stages, namely entry, attack, and review, in proving mathematical principles on geometric vector topics. A quantitative descriptive approach was employed involving 44 sixth-semester Mathematics Education students. Data were collected through an essay-based mathematical proof test and analyzed using an error analysis rubric based on Mason's thinking stages. Descriptive statistics were used to calculate the frequency and percentage of errors at each stage. The results revealed that the percentages of errors at the entry, attack, and review stages were 18%, 70%, and 82%, respectively. Errors at the entry stage were mainly related to incomplete identification of given information and incorrect mathematical notation, whereas attack stage errors involved difficulties in constructing proof strategies and understanding the angle between vectors. At the review stage, students failed to verify the validity of their proofs and formulate appropriate conclusions. In conclusion, students' mathematical thinking errors were predominantly found at the attack and review stages.
PENGARUH KEMAMPUAN SPASIAL DAN KEMAMPUAN BERPIKIR KREATIF TERHADAP KEMAMPUAN PEMECAHAN MASALAH BANGUN RUANG SISI DATAR Siti Ruhama; Ketut Sarjana; Ulfa Lu’luilmaknun
Al-Irsyad Journal of Mathematics Education Vol 5 No 1 (2026): Januari - Juni 2026
Publisher : Sekolah Tinggi Keguruan dan Ilmu Pendidikan Darud Da'wah Wal Irsyad Pinrang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58917/ijme.v5i1.492

Abstract

Matematika berperan penting dalam mengembangkan kemampuan berpikir logis, kritis, kreatif, dan sistematis. Hasil observasi di SMP Negeri 4 Narmada menunjukkan bahwa siswa masih kesulitan menyelesaikan soal pemecahan masalah pada materi bangun ruang sisi datar, terutama karena rendahnya kemampuan spasial dan berpikir kreatif yang diperlukan dalam memahami dan merancang strategi penyelesaian secara efektif. Penelitian ini bertujuan untuk mengetahui pengaruh kemampuan spasial dan kemampuan berpikir kreatif terhadap kemampuan pemecahan masalah bangun ruang sisi datar pada siswa kelas IX SMP Negeri 4 Narmada semester ganjil tahun ajaran 2025/2026. Jenis penelitian ini adalah kuantitatif dengan metode ex post facto. Sampel penelitian berjumlah 49 siswa yang diambil dengan teknik Cluster sampling. Instrumen penelitian berupa tes kemampuan spasial, tes kemampuan berpikir kreatif, dan tes kemampuan pemecahan masalah. Data dianalisis menggunakan regresi berganda dengan uji prasyarat. Hasil penelitian menunjukkan adanya pengaruh positif dan signifikan antara kemampuan spasial dan kemampuan berpikir kreatif terhadap kemampuan pemecahan masalah, dengan persamaan regresi yaitu Terdapat pengaruh yang signifikan antara kemampuan spasial dan kemampuan berpikir kreatif terhadap kemampuan pemecahan masalah bangun ruang sisi datar peserta didik kelas IX SMP Negeri 4 Narmada Tahun ajaran 2025/2026, dengan kontribusi sebesar 88,8% sedangkan sisanya dipengaruhi faktor lain 11,2%
Co-Authors Amrullah Amrullah Anas Usman Husnuddu’a Anis Azizah Ariska Amalia Wulandari Arjudin Arjudin Aulia Alfianita Azwina Amalia Baidowi Baidowi Baiq Dewi Mustika Wati Baiq Noviana Ekawati Baiq Suhadiati Handini Camelia Apria Saputri Dea Nadia Defy Indrasari Dwi Novitasari Dwi Novitasari Eka Kurniawan Ermawati Ermawati Eva Nurdiana Gilang Primajati Hapipi Hapipi Harry Soeprianto Hasmi Hidayati I Gusti Ayu Rarasanti Ida Ayu Putu Semaraning Tyas Iga Safitri Juliyanti Juliyanti Junaidi Junaidi Kemuning Wismayani Laila Hayati Lina Nuriyanti M. Khairul Miswari Maulida Yuniarti Maya Fitria Ningsih Muhammad Turmuzi Nani Kurniatai Nani Kurniati Nasrun Rozikin Ni Made Intan Kertiyani NI MADE INTAN KERTIYANI Ni Nyoman Sriningsih Ni Nyoman Yulia Paicasari Nopyta Intan Sari Nunung Indaswari Nurbaeti Irmayani Nurjannah Nurjannah Nuzula Mukti Nyoman Sridana Nyoman Sridana Putri Husnul Khotimah Ratih Ayu Apsari Regi Akmal Akmal Salsabila, Nilza Humaira Shintia Pratini T Silma Safira Hifyatin Siti Ruhama Sri Subarinah Sripatmi Sripatmi Sudi Prayitno Syahrul Azmi Tabita Wahyu Triutami Ulfa Lu'luilmaknun Ulfa Lu’luilmaknun Ulfa Lu’luilmaknun Wahidaturrahmi, Wahidaturrahmi Yulinar Maulinda Dewi Yulis Tyaningsih, Ratna Zanirah Permatasari