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Kemampuan Representasi Matematis Siswa SMP pada Materi Kekongruenan dan Kesebangunan Indri Herdiman; Koentri Jayanti; Kholifia Ayuning Pertiwi; Resti Naila N.
Jurnal Elemen Vol 4, No 2 (2018): July
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jel.v4i2.539

Abstract

The ability of the mathematical representation is the ability to create a model of a problem into a new form of verbal, text, tables, or graphs. The research is a qualitative descriptive study aimed to systematically describe the capabilities of mathematical representation. Data collection techniques in this study conducted using tests such as about the description, the test is given to students of class IX in one of the Junior High School in the city of Cimahi with 37 students. The results showed that the ability of the mathematical representation of students on the material for the indicator congruence and similarity of words or text are at less qualification with the percentage of students' average score of 43%. Indicators visual representation including sufficient qualification with the percentage of students' average score of 60%. On the indicator equations or mathematical expressions including the qualification is very less with the average percentage score of 34.75%. Difficulties faced by students predominantly found in Question 2b, 4b with the kind of test containing indicator words or text and Question 4c with indicators equations or mathematical expressions.
EFEKTIFITAS LEMBAR KEGIATAN SISWA BERBASIS PENDEKATAN PROBLEM BASED LEARNING PADA MATERI PERBANDINGAN UNTUK SISWA SMP Koentri Jayanti; Euis Eti Rohaeti; Ratna Sariningsih
Journal on Education Vol 1 No 2 (2019): Journal On Education
Publisher : Departement of Mathematics Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (758.053 KB) | DOI: 10.31004/joe.v1i2.37

Abstract

One of the learning efforts that are discovering the concept with the creation of the student activity sheet based approach to Problem Based Learning. The purpose of this research is to analyze the feasibility of Student Activity Sheets that have been made before actually used when the learning process. This descriptive qualitative research methods, with a sample of 33 students one of 228 West Bandung Regency. The instrument to be prepared is student activity sheet based approaches Problem Based Learning, the now expert validation material, linguist, connoisseur media, and now student response. As for the results of the research that is now 75% material expert validation, linguists 75%, 83%, and media expert question form student response 76%. It can be concluded that the students already there is an interest in working on is student activity sheet but should still be in the lead. Student activity sheet based approach to Problem Based Learning can be used in learning.
Co-Authors Eti Rohaeti, Euis Indri Herdiman Kholifia Ayuning Pertiwi Ratna Sariningsih Resti Naila N.