Birth to six months

• responds to sounds
• looks at faces
• reaches for objects
• sits with some support

Six to twelve months

• sits independently
• crawls and begins to pull to stand
• responds to name
• babbles, says "dada" or "mama"

Twelve to eighteen months

• walks five steps without falling
• begins using words
• points or gestures to show wants
• builds tower using three cubes

Eighteen to twenty-four months

• uses two word sentences
• points to three body parts
• sits in chair without falling
• refers to self by name

Twenty-four to thirty-six months

• jumps with feet together
• imitates drawing lines and circles
• completes simple puzzles
• follow two step directions