My five year old ds was slow to talk and still cannot pronounce the 's' and 'f' sounds. For example he will say 'nake' rather than snake. He has had his hearing checked which was fine and had an initial assessment with a speech therapist at 4 years who said she did not need to see him again as she thought he would catch up. Because of this I haven't worried about his language but his teachers have picked up on it and are slightly concerned. Now I don't know whether to ask for another assessment or to hope he will be okay in his own time. I don't want to make a big issue of something that he will grow out of. Does anyone have any experience of this?