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All Journal Paradikma: Jurnal Pendidikan Matematika Wahana Didaktika
Fajar Falbiansyah
Universitas Sultan Ageng Tirtayasa
Education Mathematics Other

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ANALISIS PENALARAN MATEMATIS MAHASISWA PADA MATERI GEOMETRI DITINJAU BERDASARKAN TEORI VAN HIELE Fajar Falbiansyah; Heni Pujiastuti
Wahana Didaktika : Jurnal Ilmu Kependidikan Vol. 19 No. 1 (2021): Wahana Didaktika Jurnal Ilmu Kependidikan
Publisher : Faculty of teaching training and education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/wahanadidaktika.v19i1.4400

Abstract

Penelitian ini bertujuan untuk mengetahui sejauh mana tingkat penalaran matematis mahasiswa pada materi geometri berdasarkan teori Van Hiele. Subjek penelitian ini adalah mahasiswa FKIP Universitas Sultan Ageng Tirtayasa. Subjek penelitian dipilih dengan menggunakan Teknik purposive sampling. Jumlah sampel yang diperlukan berjumlah 3 orang masing-masing dari angkatan 2017, 2018, dan 2019 yang dipilih berdasarkan kriteria tertentu yaitu memiliki kemampuan penalaran matematis dan komunikasi matematis yang baik serta mau dan mampu mengerjakan soal yang diberikan. Teknik pengumpulan data yang dilakukan yaitu dengan pemberian tes, instrument tes yang digunakan berdasarkan tingkat geometri Van Hiele serta memuat indicator penalaran matematis. Hasil penelitian ini menunjukkan bahwa dua subjek berada dalam level geometri tingkat 5 (Rigor) serta satu subjek berada pada level geometri tingkat 4 (Deduksi Formal), ketiga subjek juga mampu mencapai setiap indikator yang termuat di dalam soal. Kata Kunci : Penalaran Matematis, Van Hiele, Geometri This study aims to determine the extent of students' mathematical reasoning on geometry based on Van Hiele's theory. The subjects of this study were students of FKIP Sultan Ageng Tirtayasa University. The research subjects were selected using purposive sampling technique. The number of samples needed is 3 people each from the class of 2017, 2018, and 2019 who were selected based on certain criteria, namely having good mathematical reasoning abilities and good mathematical communication and willing and able to do the given problem. Data collection techniques were carried out by providing tests, test instruments used based on the level of Van Hiele geometry and loading indicators of mathematical reasoning. The results of this study indicate that two subjects are at level 5 geometry (Rigor) and one subject is at level 4 geometry (Formal Deduction), all three subjects are also able to reach each indicator contained in the problem. Keywords: Mathematical Reasoning, Van Hiele, Geometry
Development of Student Worksheet Based on POE (Predict-Observe-Explain) Model to Students Mathematical Problem Solving Skills Fajar Falbiansyah
PARADIKMA: JURNAL PENDIDIKAN MATEMATIKA Vol 16, No 1 (2023): PARADIKMA JURNAL PENDIDIKAN MATEMATIKA (January - June 2023)
Publisher : Study Program of Mathematics Education of Unimed Postgraduate Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/paradikma.v16i1.45238

Abstract

This study aims to create student worksheet products based on the POE (Predict-Observe-Explain) model for student mathematical problem solving skills on quadrilateral topic that are valid, practical, and effective. This study uses the R&D method and the model used ADDIE. Validity is calculated based on the validation sheet. The average percentage obtained from material experts is 80% with a valid category, while the average percentage obtained from media experts is 81.33% with a very valid category. Practically is calculated based on response sheet. The average percentage obtained from students responses is 83.35% with a very practical category, while the average percentage obtained from teacher responses is 75.65% with a practical category, Effectiveness is calculated based on problem solving skills tests. Students who get a score that qualify the minimum completeness criteria is 75 will be considered complete. Amount of students who completed is 24 of 33 and got a completeness percentage 72.73% with an effective category so that the student worksheet can be used as teaching material.
Co-Authors Heni Pujiastuti