Mathematical reasoning ability in relations and function using the problem solving approach

Abstract

Mathematical reasoning ability is an important ability in mathematics learning because by using reasoning it can interpret mathematics. This study aims to examine the achievement and improvement of junior high school students' mathematical reasoning abilities. The method used in this study was quasi experimental with a pretest and posttest design. The independent variable of research uses a problem solving approach, while the dependent variable is mathematical reasoning ability. The sample used by the Junior High School students, SMPN 2 Cilebar in Karawang Regency was taken using a purposive technique, namely the experimental group and the control group. The research instrument was in the form of a five-question test of mathematical reasoning skills. Data processing using Microsoft Excel and Minitab software 16. The first result is the achievement of junior high school students' mathematical reasoning abilities whose learning with problem solving approach is better than students who get conventional learning. The second result is an increase in mathematical reasoning abilities of junior high school students who use a problem solving approach better than students who use conventional learning. Increased mathematical reasoning ability is classified as moderate.