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Gusti Rada
Universitas Negeri Padang
Education Mathematics

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Developing RME-Based Learning Trajectory for Teaching Addition to A Dyscalculia Student in Elementary School Ahmad Fauzan; Cahyo Dwi Andita; Gusti Rada; Afifah Zafirah; Abdul Halim bin Abdullah
Didaktik Matematika Vol 9, No 1 (2022): April 2022
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (786.429 KB) | DOI: 10.24815/jdm.v9i1.25340

Abstract

This research aimed to design an RME-based learning trajectory for a dyscalculia student to learn the addition of whole numbers. The research used design research approach that consists of three phases: preparing for the experiment, conducting the experiment, and retrospective analysis. This research's data collection techniques were observations, interviews, videotaping, and analyzing the student’ works. The main result of this research is the learning trajectory for teaching addition of whole numbers to a dyscalculia student using RME approach. The series of activities in the learning trajectory are addition of whole numbers between 1 and 10 by combining the objects, addition of whole numbers between 1 and 10 using number relations, addition of whole numbers between 1 and 20 using number relations, and finding the concept of place value of tens and ones in addition of numbers. This research also shows the cognitive improvement of dyscalculia student in learning the addition of  whole numbers. Learning activities carried out by the dyscalculia student help him to shif from informal knowledge to formal mathematical knowledge in order to understand the concept of addition of whole numbers. It makes dyscalculia student has number sense, number construction, and number relation abilities which increase significantly in the learning process.
PENGEMBANGAN DESAIN PEMBELAJARAN BERBASIS REALISTIC MATHEMATICS EDUCATION UNTUK TOPIK PELUANG DI KELAS XII SMA Gusti Rada
Jurnal Edukasi dan Penelitian Matematika Vol 8, No 1 (2019): Maret
Publisher : Departemen Matematika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pmat.v8i1.6238

Abstract

The result of preliminary studies suggest that students’ mathematical reasoning abilities on topic probability was low. This is due to the teaching of teachersthat are too focused on textbooks, while the presentation of topic probability is not fully adequate to guide students in learning.This research aimed to developing instructional design with the Realistic Mathematic Education (RME) approach on topic probability for Senior High School grade XII using Gravemeijer and Cobb model which consists of three phases, namely the preparing for the experiment), the conducting experiment) and the retrospective analysis.The subjects research were SMAN 2 Painan grade XII. The learning design in question is a learning path known as the Hypotetical Learning Trajectory (HLT). HLT is a learning flow consisting of learning objectives, learning activities, and learning process hypotheses to predict how students' thoughts and understanding will develop in the context of learning activities.The result showed that the development of instructional learning design with realistic mathematic education on topic probability in senior high school grade XII was valid and practice.Keywords–Realistic Mathematics Education, Probability, Design Research, Hypotetical Learning Trajectory
Co-Authors Abdul Halim bin Abdullah Afifah Zafirah Ahmad Fauzan Cahyo Dwi Andita