Ilham Rizkianto
Yogyakarta State University, Yogyakarta

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Constructing Geometric Properties of Rectangle, Square, and Triangle in the Third Grade of Indonesian Primary Schools Rizkianto, Ilham; Zulkardi, Zulkardi; Darmawijaya, Darmawijaya
Journal on Mathematics Education Vol 4, No 2 (2013)
Publisher : Department of Doctoral Program on Mathematics Education, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jme.4.2.414.160-171

Abstract

Previous studies have provided that when learning shapes for the first time, young children tend to use the prototype as the reference point for comparisons, but often fail when doing so since they do not yet think about the defining attributes or the geometric properties of the shapes. Most of the time, elementary students learn geometric properties of shapes only as empty verbal statements to be memorized, without any chance to experience the contepts meaningfully. In the light of it, a sequence of instructional activities along with computer manipulative was designed to support Indonesian third graders in constructing geometric properties of square, rectangle, and triangle. The aim of the present study is to develop a loval instructional theory to support third graders in constructing geometric properties of rectangle, square, and triangle. Thirty seven students of one third grade classes in SD Pupuk Sriwijaya Palembang, along with their class teacher, were involved in the study. Our findings suggest that the combination of computer and non-computer activities suppots third graders in constructing geometric properties of square, rectangle, and triangle in that it provides opportunities to the students to experience and to develop the concepts meaningfully while using their real experiences as the bases to attain a higher geometric thinking level.Key concepts: Geometric properties, rectangle, square, triangle, design research, realistic mathematics education DOI: http://dx.doi.org/10.22342/jme.4.2.414.160-171
ANALISIS BUKU MATEMATIKA SISWA SMP KURIKULUM 2013 Rizkianto, Ilham; Santosa, Rusgianto Heri
Mosharafa: Jurnal Pendidikan Matematika Vol 6, No 2 (2017)
Publisher : Institut Pendidikan Indonesia

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Abstract

Abstrak Penelitian ini memiliki tujuan untuk memformulasikan masukan sebagai bahan pertimbangan dalam penyempurnaan buku matematika siswa SMP kurikulum 2013. Sehingga nantinya kesalahan-kesalahan yang ditemukan dalam buku matematika siswa SMP kurikulum 2013 dapat diminimalisisr dan layak dipakai oleh siswa. Jenis penelitian ini adalah penelitian deskriptif analitik, yakni suatu penelitian yang bertujuan untuk memberikan gambaran tentang realitas pada objek yang diteliti secara objektif. Penelitian ini menekankan pada satu variabel yaitu kebenaran konsep pada buku matematika siswa SMP kurikulum 2013. Hasil analisis menunjukkan bahwa dalam buku matematika siswa SMP kurikulum 2013 masih terdapat banyak kesalahan. Kesalahan ini berupa kesalahan dalam penulisan maupun dalam merumuskan konsep pembelajaran matematika. Kata Kunci: analisis buku, buku matematika siswa, kurikulum 2013, pembelajaran matematika. Abstract The aim of this present study is to formulate suggestions as a consideration in improving junior high school students’ mathematics book 2013 curriculum. Later on, the mistakes found in the book can be minimalize and suitable to be used by students. The sort of this study is a analitic descriptive research, namely a research that intends to give representations about reality towards objects that have been studied objectively. This research study stresses in one variable, namely the truth concept in junior high school students’ mathematics book 2013 curriculum. The result of the analysis shows that in Junior High School students’ mathematics textbook 2013 curriculum was found many mistakes. The mistakes includes wrong spelling in written the words and wrong formulation of mathematics learning concepts. Keyword: book analysis, students’ mathematics book, 2013 curriculum, mathematics learning.