Pronunciation - er, or and ah
Presentation and Practice of /ɜ: ɔ: ɑ:/ sounds.
The pdf here gives a full lesson to present and practise the sounds /ɜ: ɔ: ɑ:/ (er, or and ah). It also gives some spelling guidance for these sounds.
Further Practice: /ɜ: ɔ: ɑ:/ crosswords
These crosswords get students trying to say the words from the phonemic transcription, then trying to identify how to spell the word they are saying.