On High School Students’ Communication Skill in Proof-Based Learning

Abstract

This research aims at describing students’ mathematical communication skill through proof-based learning. This research was conducted at a senior high school in Bangka Belitung province involving 29 students. The instructional process and data collection were conducted online using Zoom Cloud Meeting application due to Covid-19 pandemic outbreak. A video about learning materials was prepared and sent to students prior to web meeting via zoom. During the meeting students were asked to work on proof-based worksheet guided by researcher. Test was then used to collect data about students’ communication skill. The result shows the students' mathematical communication skills on the material of Sum and Difference of Sines and Cosines are in the sufficient category with a percentage of 52.6%.