In terms of motor development, they can generally walk, run and climb up and down steps with support. They should be able to jump up and throw a ball, build a tower of four to eight blocks and copy vertical lines with a pencil. At this age, most still need help dressing and undressing.
In terms of speech and language, they can clearly say up to 50 single words and combine two to three words to make sentences and follow two step commands. They show interest in books and stories and begin to show imaginative play.