Every parent compares at some point. A cousin is already talking in sentences, a classmate can hop on one foot, and suddenly you’re wondering whether your child is on track. Milestones are a useful way to check in, as long as you know what they do and don’t mean.

At Focus On Kids Pediatrics, we track development at every well visit. This guide walks through the milestones most children reach from age 1 to 5. It’s based on the Centers for Disease Control and Prevention (CDC) checklists, and it explains when to talk with us sooner.

What a Milestone Really Means

A developmental milestone is something most children, 75% or more, can do by a certain age. So a milestone isn’t a deadline or a test. Many children reach skills earlier, and some reach them a little later.

Milestones cover four areas: social and emotional skills, language and communication, thinking and problem-solving, and movement. Looking across all four gives a much clearer picture than any single skill.

One point matters more than any checklist: if your child loses a skill they once had, talk to us right away.

Milestones From Age 1 to 5

By 1 Year

• Plays games with you, like pat-a-cake
• Waves bye-bye and calls a parent “mama,” “dada” or another special name
• Understands “no” by pausing or stopping when you say it
• Looks for things they see you hide, like a toy under a blanket
• Pulls up to stand and walks while holding on to furniture
• Picks up small things between the thumb and pointer finger

By 2 Years

• Notices when others are hurt or upset
• Says at least two words together, like “More milk”
• Points to things in a book when you ask, and to at least two body parts
• Plays with more than one toy at the same time, like putting toy food on a toy plate
• Kicks a ball, runs and walks up a few stairs
• Eats with a spoon

By 3 Years

• Calms down within 10 minutes after you leave, like at childcare drop-off
• Notices other children and joins them to play
• Has a conversation with at least two back-and-forth exchanges
• Asks “who,” “what,” “where” or “why” questions
• Talks well enough for others to understand most of the time
• Draws a circle when shown how, and uses a fork

By 4 Years

• Pretends to be something else during play, like a teacher, superhero or dog
• Comforts others who are hurt or sad
• Says sentences with four or more words
• Talks about something that happened during the day
• Names a few colors and tells what comes next in a well-known story
• Catches a large ball most of the time and holds a crayon between fingers and thumb

By 5 Years

• Follows rules or takes turns when playing games with other children
• Keeps a conversation going with more than three back-and-forth exchanges
• Tells a simple story with at least two events
• Counts to 10 and writes some letters in their name
• Pays attention for 5 to 10 minutes during an activity like story time
• Hops on one foot and buttons some buttons

The CDC offers a free Milestone Tracker app and printable checklists if you want to follow along at home.

How Developmental Screening Works at Well Visits

Watching milestones at home is helpful, but it isn’t the same as a formal screening. The American Academy of Pediatrics recommends general developmental screening with standardized tools at 9, 18 and 30 months. It also recommends autism screening at 18 and 24 months. We also screen any time you or your child’s doctor has a concern.

Screening usually involves a short questionnaire you fill out about what your child can do. Before some visits, we may ask you to complete these questionnaires online through our CHADIS portal. There are no right or wrong answers. Just tell us what your child does day to day.

To see what else happens at these visits, read what to expect at well-child exams for preschoolers.

When to Call the Doctor

You know your child best. Don’t wait for the next checkup if your child:

• Isn’t meeting one or more milestones for their age
• Has lost skills they used to have
• Has trouble making eye contact, responding to their name or playing with others
• Is hard for family members to understand by age 3
• Seems to have trouble hearing or seeing

Getting help early makes a real difference. Our articles on developmental delay in children and speech therapy for children explain what the next steps can look like.

Everyday Moments That Build These Skills

Children build skills through ordinary routines. Talking through your day, reading together, singing and letting your child help with simple chores all support language and thinking. Unstructured play, especially outdoors, builds movement and problem-solving skills.

You don’t need special toys or apps for any of this. One of our most popular articles, environmental factors that affect child development, explains how routines, relationships and surroundings all play a part. Time with other kids matters too, as we cover the importance of socialization in early childhood.

The CDC suggests limiting screen time for 2- and 3-year-olds to no more than one hour a day of children’s programming, watched with an adult. Children learn most from talking, playing and interacting with people.

Free Support for Colorado Families

If there’s a concern, Colorado offers free evaluations. Children from birth to age 3 can be referred to Early Intervention Colorado. For children ages 3 through 5, your local school district’s Child Find program provides screening and evaluation at no cost to families. We can help you make the referral.

Final Thoughts

Every child develops on their own timeline, and small differences are normal. The checklists simply help you notice patterns. Pair them with regular well visits and ask questions early. That’s the best way to catch anything that needs attention.

If something about your child’s development is on your mind, our pediatricians in Littleton are glad to talk it through. With support from Focus On Kids Pediatrics, you can feel confident about each stage of your child’s growth.