  This study aims to describe the communication of prospective teachers in
learning mathematics. The research was conducted in SMAN 1 Madura. The subject
of this research is PLP student from Mathematics Education Study Program of
Madura University. The prospective teacher's math learning is using the concept
of function limits and the derivative of functions in problem solving
(Calculus). This research is descriptive qualitative research. Instruments in
the study were interviews, field notes, and video recordings. The knowledge of
prospective mathematics teacher in field practice involves communication in
factual,conceptual, procedural, and metacognitive knowledge in facts, concepts,
principles, procedures, and reasoning. Teacher communication plays a role in
learning mathematics, especially the ability to use formulas, rules, and
methods simultaneously correctly to make accurate calculations. Prospective
teachers are able to provide guidance to their students when implementing
mathematics lessons and when working on the blackboard, directing discussions
and frequently asked questions, using language appropriate to the level of
students ' understanding so that the symbols, procedures, and strategies
described can be well understood by the students. Keywords: Communication,
Prospective teachers, and Mathematics learning .
