N. Fitriani, D. Suryadi, D. Darhim
The purpose of this study is to determine the process of abstraction of junior high school students on the concept of a Three Dimensional Figure with Curved Surfaces (TDFCS). Benefits of this research are to provide input to teachers in order to know the process of student abstraction, so it can be used as consideration in preparing lesson plans. The problem that is considered is how the process of student abstraction related to the concept of TDFCS. The research method used is qualitative descriptive with the subject of research is 25 students of Junior High School Students grade 9 th . The main instrument in this study is the researchers themselves, tests abstraction and interview guidelines. Furthermore, three students were selected to be interviewed (from high, average and low ability based on their prior knowledge test). In this study, the abstraction used is a reflective abstraction with the following stages (1) recognition, (2) representation, (3) structural abstraction, and (4) structural awareness. The conclusion in this study shows that junior high school students generally still do not have abstraction abilities in the concept of TDFCS, so it becomes a necessity to do further research using learning models and appropriate teaching materials. © Published under licence by IOP Publishing Ltd.
Sekolah Pascasarjana, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung, 40154, Indonesia; Prodi Pendidikan Matematika, IKIP Siliwangi, Jl. Terusan Jenderal Sudirman No 3, Indonesia
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