Developmental Checklist by Age

Published: September 3, 2026

18 Months: Walking Alone and Adding New Words

Around 18 months, many toddlers walk without help and try several new words beyond “mama” and “dada.” Based on CDC developmental milestones, toddlers this age tend to show the following.

Social/Emotional

• Moves away from you but looks back to make sure you’re close by.
• Points to show you something interesting.

Language/Communication

• Tries to say three or more words besides “mama” or “dada.”
• Follows one-step directions given without any gestures, like sitting down when you say “sit down.”

Cognitive (Learning, Thinking, Problem-Solving)

• Knows what ordinary things are for, like a telephone, brush, or spoon.
• Scribbles on their own.

Movement/Physical Development

• Walks without holding on to anyone or anything.
• Tries to use switches, knobs, or buttons on a toy.

Caregiving Tip

Since walking independently quickly widens a toddler’s range of movement, it’s considered a good time to double-check safety around stairs and outlets. As scribbling begins, offering a crayon or large marker and letting them scribble freely is considered supportive for fine motor development.

When to Consider Talking with a Pediatrician

If a toddler still isn’t walking alone, isn’t attempting three or more words, or shows no understanding of familiar objects’ uses, checking in with a pediatric provider may be helpful. This information isn’t a diagnostic tool and doesn’t replace advice from a medical professional.