Learning optics with android-assisted comics: the impacts on students critical thinking

Abstract The purpose of this study is to improve students’ critical thinking skills with the assisted of android comics learning media on optical material. The study was conducted at SMA Negeri 1Kalasan, Yogyakarta with a data sample of 27 students. The study was conducted using the type of pre-experimental research. The data is taken using a cluster random sampling technique and the research design is one group pretest-posttest design. The test used is a critical thinking ability test in the form of essays in optical material, and it’s validated by expert judgment. Test data were analyzed using n-gain analysis, the results of the analysis showed that the increase in students’ critical thinking skills is in the average value of N-gain included in the moderate and high categories. Students who get the moderate category have an N-gain value of 0.53 with a percentage of many students at 44%. Meanwhile, students who get the high category have an N-gain value of 0.79 with the percentage of many students at 56%. This shows that android comics learning media is effectively used to improve students’ critical thinking skills.