Using of GeoGebra to Improve Mathematical Reasoning with the Problem-Solving Method

Abstract

This research aims to look at the use of GeoGebra in solving geometric problems in life, especially to improve the mathematical reasoning abilities of high school students. This quasi-experimental research with static comparison design involved 82 students from high Prior Mathematical Knowledge (PMK), moderate Prior Mathematical Knowledge (PMK), and low Prior Mathematical Knowledge (PMK). The instrument used in this research include the Prior Mathematical Knowledge test. Data were analyzed by t-test. The result of the research shows that at high and low Prior Mathematical Knowledge(PMK) levels there were no significant differences while at the moderate Prior Mathematical Knowlege (PMK) level there were differences in students‘ mathematical reasoning abilities using GeoGebra in problem-solving learning.