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Afriadi, Juli
Universitas Islam Negeri Imam Bonjol Padang
Mathematics

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Pengembangan Desain Pembelajaran Topik Rata-Rata Hitung Berbasis Realistic Mathematics Education (RME) di Kelas IX SMP/MTs Afriadi, Juli
Math Educa Journal Vol 2, No 1 (2018)
Publisher : Universitas Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/mej.v2i1.179

Abstract

Pleriminary research showed there were problems in arithmetic mean learning at junior high school grade IX . Students were more likely to be introduced by the use of formulas without involving the discovery of the concept itself and separate from the learning experience of students everyday. This research aimed to developing instructional design of mean topics arithmetic mean with Realistic Mathematics Education (RME) approach, for junior high school grade IX. This research that was combined Plomp and model Gravemeijer & Cobb develompment models, which consisted of three phases, there were the preliminary research (preparing for the experiment), a development phase ( prototyping phase/ design experiment) and the assessment phase (retrospective analysis). The subjects were students of grade IX MTsN Salido.This research develops an instructional design of the topic arithmetic mean using realisticmathematics education (RME) approach.The results of the experiment showed contexts teaching contained in the student books can stimulate students to develop their knowledge in finding statistical concepts. The whole strategy (emergent modeling) were found and discussed students, showing how the construction or the contribution of students in discovering the concept of arithmetics mean from the formal to the informal level. The results showed that the design of the learning topic arithmetic mean with RME approach is valid, practical and effective. Valid in terms of content and language. Practical in terms of practice, the ease and time required. Effective in terms of its potential impact on student’s mathematical reasoning abilities.Keywords: Instructional Design, arithmetic mean, RME, Learning Trajectory, Design Research
Identifikasi Kesalahan dan Miskonsepsi Mahasiswa Calon Guru Matematika Pada Topik SPLDV Afriadi, Juli
Math Educa Journal Vol 2, No 2 (2018)
Publisher : Universitas Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/mej.v2i2.191

Abstract

This research aims to identify errors and misconceptions of prospective mathematics teacher students in the SPLDV material. This study uses a qualitative research design. Research data was collected from 15 micro teaching students in the sixth semester of UNP Padang, using test questions and interview guidelines The SPLDV test questions prepared include the concept of SPLDV with infinite solutions and SPLDV with exactly one solution. The results of the study indicate that there are a number of errors and misconceptions of the material. Identified student errors are conceptual errors, namely mistakes made by students because they do not understand the SPLDV concept properly. Strategic error, which is an error that occurs because students choose the wrong way to do it. Calculate errors, namely errors in performing mathematical operations. Systematic error, which is an error regarding the wrong selection of extrapolation techniques. The interview results show the causes of misconceptions experienced by students, namely ignorance, language errors, film shows, thinking skills, family background, parallel conceptions, and initial student misconceptions.Keywords: Misconception, SPLDV, Mathematics
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