Ds is 2.10, and he is a very happy, determined boy, very affectionate, and can do all the thinks I think he should be able to do , like puzzles, and towers and count to 10 etc. He was slow to talk, and does talk although in samller sentences 3 or 4 words, but he's quite difficult to understand, he doesn't seem to pronounce things properly. He started nusery in September and his teacher agrees that he is behind others his age? What should I do know and how can I help him, what's the next step? Please any advice welcome..