Communication is the exchange of information between individuals or gropus. It is used in everyday life, whether to learn something, obtain education or talk with somebody else.
Proactive communication is a particular kind of communication where a person solves problems, clarifies doubts, or deals with claims in advance. A proactive communicator does not wait for the other people to inform their worries, he/she acts in anticipation to prevent them.
In school, these contrasts can make a difference. You can make use of<em> communication</em> with the teacher to clarify your doubts about a particular subject. In that way, you will possibly avoid having problems to understand the subject. On the other hand, the teacher will make use of <em>proactive communication</em> to make the educational process as effective as possible. As a result, he/she can anticipate the problems students can find in certain situations by giving them possible solutions.