One Year

Social and Emotional

• Is shy or nervous with strangers
• Cries when mom or dad leaves
• Has favorite things and people
• Shows fear in some situations
• Hands you a book when he wants to hear a story
• Repeats sounds or actions to get attention
• Puts out arm or leg to help with dressing
• Plays games such as “peek-a-boo” and “pat-a-cake”

Language/Communication

• Responds to simple spoken requests
• Uses simple gestures, like shaking head “no” or waving “bye-bye”
• Makes sounds with changes in tone (sounds more like speech)
• Says “mama” and “dada” and exclamations like “uh-oh!”
• Tries to say words you say

Cognitive (learning, thinking, problem-solving)

• Explores things in different ways, like shaking, banging, throwing
• Finds hidden things easily
• Looks at the right picture or thing when it’s named
• Copies gestures
• Starts to use things correctly; for example, drinks from a cup, brushes hair
• Bangs two things together
• Puts things in a container, takes things out of a container
• Lets things go without help
• Pokes with index (pointer) finger
• Follows simple directions like “pick up the toy”

Movement/Physical Development

• Gets to a sitting position without help
• Pulls up to stand, walks holding on to furniture (“cruising”)
• May take a few steps without holding on
• May stand alone

Source: https://www.cdc.gov/ncbddd/actearly/milestones/milestones-1yr.html