The Effectiveness of Using Case Method-based Mechanics Teaching Materials and Videos in QR Codes to Train Undergraduate Students Critical Thinking Skills Aprina Defianti, Sutarno
Science Education Department, Faculty of Teacher Training and Education, University of Bengkulu
Abstract
This research aims to determine the effectiveness of using case method-based mechanics teaching materials and videos in QR codes on undergraduate students critical thinking skills. This research used a quasi-experimental method with post-test only control group design. A sample of 2 classes was taken using purposive sampling technique. The experimental class used case method-based mechanics teaching materials and videos in QR codes, while the control class used print-outs of material summaries. Data collection was carried out through observation and critical thinking skills tests. Critical thinking skills test results data were analyzed using descriptive and inferential statistics. To test the mean difference hypothesis, the t test of two independent samples non-homogeneous was used. The results of the t test showed that there is a difference in the average critical thinking skills scores of experimental class and control class students with t-count=2.911 which is greater than t-table=1.681 at df=42.62 (rounded up to 43). Based on these results, the use of case method-based mechanics teaching materials and videos in QR codes is effective in training students^ critical thinking skills with an effectiveness level of 0.82 (high impact).
Keywords: Teaching Materials, Mechanics, Case Method, Videos in QR Codes, Critical Thinking Skills.
