Mathematical writing ability based on Stacie Lefler's theory

Abstract

Mathematical writing is one communication tool that always used by students especially when they trying to solve a problem. It becomes one of the student's necessities to make it easier to find the right answer. It also trains students to solve problems coherently, completely, and clearly. Mathematical writing ability is important for students in Junior High School because it to know how they write the mathematical sentences in problem-solving. Teachers also need it to know how far their students can convey an answer through mathematical writing. The students' mathematical writing ability will be measured on a particular dimension. The research method used is qualitative with the students of Junior High School as subjects. Based on the data analysis is found that on the dimension of accuracy, students are able to write answers and respond to the questions minim accuracy. On the terminology, students not use mathematical terms. In mathematical explanations, students' explanations are minim and not thorough. It because that their written explanation is too short and minim sentences.