Development of Mathematics Learning Media Assisted by the MathcityMap to Improve Students’ Critical Thinking Skills

Abstract

The goal of this study was to create a new mathematics learning tool, leveraging the MathCityMap app and a contextual approach, to enhance critical thinking skills in trigonometry among students from the 10th grade of the SMA Laboratorium UPGRIS in the academic year 2021/2022. A random cluster sampling method was utilized to select participants. Data analysis revealed that both the test and control groups were evenly distributed and homogeneous. The t-test revealed no difference in average learning outcomes between the groups. Reviews from media and content specialists gave the learning tool validity scores of 85.2% and 83.6%, respectively, and the tool's appropriateness was rated as good with a score of 85.8%, which demonstrated its effectiveness. The N-Gain test score was 1.17, indicating successful achievement of the three learning effectiveness indicators. Increases of 0.61 and 0.52 were recorded for test and control groups, based on the N-Gain test, alongside satisfactory classical learning completeness. Data revealed that over 84.9% of students using the new math learning tool showed enhanced critical thinking capabilities.