2-3 months

  • Bends and straightens arms and legs while on back
  • Beginning to bear weight

4-6 months

  • Maintains balance in sitting position
  • Brings both hands to midline while on back
  • Raises arms and legs in smooth movements on stomach and back

6-8 months

  • Moves forwards up to three feet using arms
  • Pulls to a sitting position
  • Sits unsupported and maintains sitting balance while grasping and reaching for a toy.
  • Rolls from back to stomach and lifts head on stomach

9-12 months

  • Balances in a standing position for 5 seconds
  • Creeps on a flat surface and over a small barrier

18 months

  • Walks up 4 steps
  • Walks independently for 15 feet
  • Walks backwards
  • Throws a ball

24 months

  • Runs forward at least 10 feet
  • Jumps
  • Kicks a ball forward
  • Walks sideways

36 months

  • Lifts both feet to jump forward 24 inches
  • Walks up 4 steps alternating feet
  • Stands on one foot 3 seconds
  • Catches an 8 inch ball

4 years

  • Walks down four steps alternating feet
  • Runs and hops forward on 1 foot
  • Throws a ball overhand at a target from 5 feet away

5 years

  • Skips for 8 feet
  • Stands on each foot for 20 seconds
  • Completes several sit-ups
  • Runs and changes directions without falling