<prompt> A child can make a 3 cube tower at the age of36 months15 months20 months24 months  <response>: At 15 monthsMotor: Walks alone; crawls upstairs.Adaptive: Makes the tower of 3 cubes; makes a line with crayon; inses raisin in the bottle.Language; Jargon; follows simple commands; may name a familiar object e.g. ball.Social: Indicates some desires or needs by pointing; hugs parents. 