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All Journal Jurnal Didaktik Matematika Jurnal Karya Pendidikan Matematika Jurnal Riset Pendidikan Matematika Jurnal Pendidikan Matematika
Rezky Agung Herutomo
Universitas Lakidende Unaaha
Decision Sciences, Operations Research & Management Education Mathematics

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Kesalahan Mahasiswa dalam Pembuktian Matematik Rezky Agung Herutomo
Didaktik Matematika Vol 6, No 1 (2019): Jurnal Didaktik Matematika
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (943.126 KB) | DOI: 10.24815/jdm.v6i1.13262

Abstract

Proofs are the key component in mathematics and mathematics learning. But in reality, there are still many students who make errors when constructing mathematical proofs. Therefore this study aimed to identify common errors when the students are constructing mathematical proofs. The participant  of this study was 51 of 3rd year students of Mathematics Education Department  who enrolled in Real Analysis course in the second semester of the 2017/2018 academic year. The data of the study were obtained by conducting a test consisting of five questions and interview guidelines. The errors identified in this study were (1) proving general statements using specific examples, (2) inappropriate algebraic manipulation in mathematical induction, (3) incorrect reasoning and assumptions in proving with contradictions, and (4) reasoning errors involving natural numbers in mathematical induction. Hence, further study can be developed learning models that promote the conceptual understanding, logical reasoning, and mastery of mathematical proof techniques.
PEMBELAJARAN FLIPPED CLASSROOM BERPENDEKATAN MATEMATIKA REALISTIK UNTUK MENDUKUNG LITERASI MATEMATIS SISWA Rezky Agung Herutomo; Masrianingsih _
Jurnal Karya Pendidikan Matematika Vol 8, No 2 (2021): Jurnal Karya Pendidikan Matematika Volume 8 Nomor 2 Tahun 2021
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jkpm.8.2.2021.45-52

Abstract

This study aims to determine the effectiveness of flipped classroom learning with a realistic mathematics approach to promote students' mathematical literacy. This research was a quasi-experimental study using posttest only non-equivalent control group design. The population of this research was all students of 10th grade in one of public senior higher school in Kendari, Indonesia. Two classes were chosen by purposive sampling as the samples of this study that is X-MIPA 1 as the experimental class and X-MIPA 2 as the control class. The instruments used in this study were a mathematical literacy test. The results of this study show that the flipped classroom learning with a realistic mathematics approach is effective to promote the achievement of students' mathematical literacy.
Pembelajaran model creative problem-solving untuk mendukung higher-order thinking skills berdasarkan tingkat disposisi matematis Rezky Agung Herutomo; Masrianingsih Masrianingsih
Jurnal Riset Pendidikan Matematika Vol 6, No 2: November 2019
Publisher : Program Studi Pendidikan Matematika Program Pascasarjan Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jrpm.v6i2.26352

Abstract

Penelitian ini bertujuan untuk mendeskripsikan pengaruh model creative problem solving terhadap higher-order thinking skills ditinjau dari tingkat disposisi matematis siswa. Jenis penelitian ini adalah kuasi eksperimen menggunakan posttest only non-equivalent control group design. Populasi penelitian ini adalah seluruh siswa kelas XI MIPA di salah satu SMA Negeri di Kendari. Dua kelas dipilih secara purposive sampling sebagai sampel penelitian, yaitu kelas XI-MIPA 1 sebagai kelas eksperimen dan XI-MIPA 3 sebagai kelas kontrol. Instrumen penelitian yang digunakan pada penelitian ini adalah tes higher-order thinking skills dan angket disposisi matematis. Hasil penelitian menunjukkan bahwa rata-rata higher-order thinking skills siswa yang belajar dengan model creative problem solving lebih baik dari siswa yang belajar dengan pendekatan saintifik, sedangkan jika ditinjau dari tingkat disposisi matematis, siswa yang tingkat disposisi matematisnya tinggi memiliki rata-rata higher-order thinking skills yang lebih baik dibanding siswa yang tingkat disposisinya sedang dan rendah. Namun, tidak terdapat pengaruh interaksi antara model pembelajaran dan tingkat disposisi matematis terhadap rata-rata higher-order thinking skills siswa. Creative problem-solving learning model to promote higher-order thinking skills based on the level of mathematical dispositionAbstractThis study aims to describe the effect of the creative problem-solving model on higher-order thinking skills in terms of students' mathematical disposition levels. This research was a quasi-experimental study using a posttest only non-equivalent control group design. The population of this research was all students of 11th grade in one of public senior higher school in Kendari, Indonesia. Two classes were chosen by purposive sampling as the samples of this study that is XI-MIPA 1 as the experimental class and XI-MIPA 3 as the control class. The instruments used in this study were a higher-order thinking skills test and a mathematical disposition questionnaire. The results of this study show that the mean of higher-order thinking skills of students who studied with creative problem-solving models was better than students who studied with a scientific approach, while from the level of mathematical disposition, students with higher-level mathematical dispositions have better mean higher-order thinking skills than students with moderate and low disposition level. However, there is no effect of interaction between learning models and the level of mathematical disposition to the average higher-order thinking skills of students.
Model Problem-Based Learning Berpendekatan Matematika Realistik untuk Mendukung Literasi Matematis Siswa Rezky Agung Herutomo; Nining Hajeniati; Facharuddin Mustari
Jurnal Pendidikan Matematika Vol 11, No 1: Edisi Januari 2020
Publisher : Jurusan Pendidikan Matematika FKIP Universitas Halu Oleo,

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36709/jpm.v11i1.9840

Abstract

Penelitian ini bertujuan untuk mendeskripsikan literasi matematis siswa kelas XI yang diajar menggunakan pembelajaran model PBL berpendekatan matematika realistik dan menganalisis  keefektifan pembelajaran model PBL dengan pendekatan matematika realistik terhadap capaian literasi matematis siswa. Jenis penelitian ini adalah pra-eksperimen menggunakan desain one group pretest-posttest. Populasi penelitian ini adalah seluruh siswa kelas XI MIPA SMA Negeri 2 Kendari. Sampel dipilih secara purposive sampling, yaitu kelas XI-MIPA 2 sebagai kelas eksperimen. Instrumen penelitian yang digunakan pada penelitian ini adalah tes literasi matematis. Berdasarkan hasil penelitian dapat disimpulkan bahwa (1) level literasi matematis siswa dominan pada level 1 dan 2, dan (2) pembelajaran model PBL dengan pendekatan matematika realistik efektif meningkatkan literasi matematis siswa kelas XI.
Co-Authors Facharuddin Mustari Masrianingsih Masrianingsih Masrianingsih _ Nining Hajeniati