Make sure that you have the child’s attention before you start talking, speak clearly and at your normal level and pace. Check in with them that they have understood and be prepared to go through things again if needed. It really helps if the child or young person sits where they can easily see your face when you are speaking. Try to avoid turning away from them (e.g. to write on the board) if you are talking.
Strategies for inclusion> has more detailed advice on how to support children and young people with hearing impairments in the classroom.