Analysis of Mathematical Communication Skills in Junior High School Students Sinta Widya Ningtias (a*) Sugeng Sutiarso (b) Caswita (b)
a) Magister of Mathematics Education, University of Lampung. Jl. Prof. Dr. Sumantri Brojonegoro. No. 1, Bandar Lampung, Indonesia 35141.
*sintawidya.ningtias7[at]gmail.com
b) Department of Mathematics and Science Education, University of Lampung, Jl. Prof. Dr. Sumantri Brojonegoro. No. 1, Bandar Lampung, Indonesia 35141.
Abstract
This study aims to determine students mathematical communication skills in statistical material. The subjects in this study is the VIII grade students selected by purposive sampling. The method used in this research is descriptive. Data obtained from the communication skills tests of mathematical students consisting of three essay contain of three indicator the mathematical communication ability, namely, drawing (expressing their ideas in the form of pictures, graphs and diagrams), written text (giving the mathematically explaination), and the mathematical expression (creating a mathematical model). The tests were given to 30 students of class VIII in SMP Muhammadiyah 3 Bandar Lampung. The data were analyzed quantitative and qualitative to get a comprehensive picture related to students mathematical communication skills. The results showed that the percentage of achievement of students mathematical communication indicator as follows: 1) drawing by 35%, 2) written text by 51%, and 3) the mathematical expression by 42%. Based on the percentage achieved on each indicator, it can be concluded that students mathematical communication ability is low.
