I got this from another group and it says that by 30 months:
"By now your child could be able to put on an article of clothing and can probably name about six body parts. She might also be able to balance on one foot for a couple of seconds or identify one colour. You can help build your toddler's verbal skills by expanding on what she says. For instance, if she says "Car go," you might say "Yes, that red car is going down the street very quickly." You can model for her the bigger vocabulary and more complicated sentence structure that she will soon grow into using."
My eldest can name ALL body parts, and ALL colours ( primary and secondary...not the likes of mauve, aqua or fushia!!). He also has a MUCH larger vocab than a simple "Car go"! He uses sentences that absolutely astound us at times. In fact, we play a 'What's out my window?" game in the car and his sentences are more often than not something along the lines of "Look Mummy, a silver car out my window" or "Horses out Marshalls window, and sheep too".
Wondering how all your kids are doing because from the 2.5 year olds i know the example of development above is extremely under-rated.
Dette, DS 06.03, DS 10.04, DD 03.06 & Due Sept 07!