Communication is a basic skill for students in mathematics. This study describes students’ mathematical communication in solving mathematical problems. The results show that students with high cognitive abilities are able to consolidate and organize mathematical thinking through communication with students who have moderate and low abilities. All subjects use mathematical language to present mathematical ideas. Students with high cognitive abilities are able to communicate mathematical thinking correctly to friends, teachers, and others. However, all subjects have not been able to analyze and evaluate other mathematical ideas and strategies.
Lestariningsih et al. (Mon,) studied this question.