Any suggestions on how I could improve my son's diction? He has slight glue ear and was a late speaker, and although he can talk OK and the glue ear is clearing, his diction is not as clear as it could be - substituting m/b sounds, n/d and f/th.
Are there any simple exercises that anyone could recommend to help him? At the moment I'm just correcting him as we go along, but I'd rather make it fun but more low key, rather than interrupting him when he's trying to talk!