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Average Developmental Stages

1–3 Months
Grasp small objects that are placed in their hands. Lift their heads briefly when on their tummy. React to sudden movements or noises. Follow moving objects with their eyes. Make sounds such as “cooing.” Smile when they’re played with.

3–6 Months
Turn their heads toward sounds such as a bell or voice. Lift their head and chest when on their tummy. Make babbling sounds such as “ee”“ih” or “uh.” Recognize familiar objects and people. Reach for and hold objects. Laugh or chuckle. Roll over.

6–9 Months
Sit by themselves when placed in a sitting position. Roll from their tummy to back and back to their tummy. Use crying to show different needs like hunger or anger. Play simply games like peekaboo and pat-a-cake. Make sounds such as “bab”,“gugu” or “didi.” Differentiate strangers from family. Pass objects from hand to hand. Feed themselves a cracker. Creep on their tummy.

9–12 Months
Copy sounds and words such as “Mama” and “Dada”. Understand simple words like “Mommy,” or “Bye-bye”. Pay attention to simple commands like “Give it to me.” Pull themselves to a sitting and/or standing position. Creep or crawl, perhaps backwards at first. Pick things up with their thumb and forefinger. Simple stacking of blocks or objects. Know their own name.

12–15 Months
Turn two or three pages at a time. Walk by holding onto furniture. Drink with a cup using two hands. Eat with a spoon. Build and stack objects. Talk nonsense words. Say two or more words besides “Mama” and “Dada.” Understand more of what is being said to them. Play by themselves.

15–18 Months
Imitate simple actions such as cleaning and reading. Point to simple pictures such as dog, baby and car. They can often walk upstairs with help. Throw a ball without falling. Ask for help when needed. Scribble with crayons. Push and pull toys. Imitate simple words. Walk independently.

18–24 Months
Walk well. They may begin to run. Play for longer periods of time. Put squares and circles into puzzles. Recognize themselves in a mirror or pictures. Combine two or more words (“Play ball,” “Me want cookie”). Say “no” to bedtime, certain foods and simple requests. Enjoy moving to music. Climb stairs.

24–30 Months
Jump, run, kick a ball, walk up and down stairs. Help with dressing and undressing themselves. Play with other children, usually for short periods of time. Feed themselves well with a spoon. Point to four or five parts of the body. Speak in short sentences. Name objects in books. Turn pages one at a time. Know some colors.

30–36 Months
Know the difference between “big or little”, and “boy or girl”. Share, tell stories and play pretend with other children. Ask to use the toilet during the day. Walk upstairs (one foot per step). Brush their teeth with some help. Put their shoes on (no lacing). Repeat some nursery rhymes. Say their first and last names.