Hi- I am a teacher of the deaf. Feel free to PM me if you think it might help.
Here are a few pointers we give to our mainstream teachers (I work in an enhanced provision attached to a mainstream school.)
Positioning is important- do not talk to the children with a light/ window behind you- it makes it harder to lip read.
Do not move around the class while talking for the same reason.
If hearing aids whistle it's because they are not inserted properly into the ears.
If your pupils have radio aid systems make sure you mute them when you are talking to other groups of children or when you go to the loo!
Encourage HI pupils to tell you politely, if you have forgotten to switch it on and be aware that jewellery round your neck may rub against the transmitter and make annoying sounds in their hearing aids.
Try to make sure the rest of the class keep quiet while you are teaching- tapping pencils and scraping chairs can be very distracting.
Do not sit the child under the smart board projector- some hearing aids are set up to cut out continuous background noise and this results in the hearing aid cutting in and out.
Talk to the child about their hearing loss ask them about what they find useful or difficult- encourage them to tell you when they are finding it hard to hear.
Be aware that sometimes what appears to be simple vocabulary might totally confuse them. (One of my pupils did not know what a pillow was last week,).
Idioms are baffling- raining cats and dogs, pull your socks up, that made my skin crawl, where's the fire etc.
They may have difficuilty with grammar (particularly word endings as these are fleeting on the lips and hard to hear so past tenses,plural endings and small words such as is at to might be ommited from both their speech and their writing.)
Some questions need rephrasing- e.g. how many more is x than y often causes confusion as they might know the word "more" as add.
Visual clues are very important.
We have circle of friends type groups (we call them chat clubs) for some of our pupils which helps the both HI children to understand the rules of conversation and hearing children to understand the difficulties facing their deaf friends so they are included in playground games and group work activities in class.
Some simple finger spelling or BSL might be useful (not makaton- that is totally different) BritishSignLanguage.com is a useful site for simple vocabulary.
Talk to your whole class about how to be more deaf aware NDCS has some useful ideas for deaf friendly schools. Bullying of deaf pupils in my school is very rare- Our hearing DCs are very deaf aware and this helps them to understands the needs of their deaf friends.
HTH 