• 6 weeks
• 2 months, 3 months, 4 months
• 6 months, 9 months, 12 months, 15 months, 18 months
• 2 years, 3 years, 4 years, 5 years, 6 years
• Mnemonics

6 weeks

• Gross motor: Lifts chin occasionally when prone.
• Social: Social smile.

2 months

• Gross motor: Arms extend forward when prone.
• Fine motor: Pulls at clothes.
• Speech: Cooing sounds.

3 months

• Gross motor: Monro reflex gone.

4 months

• Gross motor: Rolls from front to back.
• Fine motor: Reaches, pulls objects to mouth.
• Speech: Responds to human voice.

6 months

• Gross motor: When prone, can put weight on hands.
• Fine motor: Ulnar grasping.
• Speech: Responds to name. Babbling starts.
• Social: Stranger anxiety.

9 months

• Gross motor: Pulls to stand.
• Fine motor: Finger-thumb grasping.
• Speech: 'Mamma, Dadda'.
• Social: Separation anxiety.

12 months

• Gross motor: Walks under support.
• Fine motor: Pincer grasp. Throws. Babinski begins to disappear.
• Speech: 2 words beyond 'Mama, Dadda'.
• Social: Drinks with cup.

15 months

• Gross motor: Walks without support.
• Fine motor: Draws line.
• Speech: Jargon
• Social: Points to needed items.

18 months

• Gross motor: Climbs steps with support
• Fine motor: Scribbling.
• Speech: Says own name. 10 words.
• Social: Uses spoon.

2 years

• Gross motor: Runs. Kick ball. Climb 2 steps.
• Fine motor: Undresses.
• Speech: 2 word sentences, with pronouns. Favorite word is 'No'.
• Social: Parallel play.

3 years

• Gross motor: Ride tricycle.
• Fine motor: Copies a circle.
• Speech: Prepositions.
• Social: All dress/undress except buttons.

4 years

• Gross motor: Hop on 1 foot.
• Fine motor: Copies a cross.
• Speech: Tells story.
• Social: Cooperative play. Toilet trained. Buttons clothes.

5 years

• Gross motor: Skip. Catch ball.
• Fine motor: Copies a square, Prints own name. Ties shoelaces.
• Speech: Alphabet. Future tense.
• Social: Oedipus complex.

6 years

• Gross motor: Rides bicycle.
• Fine motor: Copies a triangle.
• Speech: Begins reading.
• Social: Develops right vs. wrong sense.

Mnemonics

By year:

• 1 year:
  • Single words.
• 2 years:
  • Climb 2 steps.
  • 2 word sentences.
  • "Parallel" requires 2 things.
• 3 years:
  • Tricycle.
  • Repeats 3 digits.
• 4 years:
  • Copies a square [4 sides].

Shape copying:

• Shapes are in alphabetical order: Circle(3yr), Cross(4yr), Square(5yr), Triangle(6yr).
• The shapes are also in order clockwise around a PlayStation pad, starting at the 3:00 position and 3 years.