Your Baby (0–12 Months): Milestones & Early Learning

By First Cubby Editorial · Updated 2026-07-09

The first year is the fastest stretch of development your child will ever go through — from a newborn who mostly eats and sleeps to a near-toddler pulling up to stand. The best “curriculum” at this age is you: your face, your voice, and everyday closeness. Here’s the general picture, with the reminder that every baby’s timeline is their own.

Across the first year, many babies…

• Social: smile back at you, laugh, recognize familiar faces, and enjoy peek-a-boo.
• Language: coo and then babble like they’re talking, turn toward voices and sounds, and respond to their own name.
• Thinking: follow moving things with their eyes, reach for and mouth objects, and — later in the year — look for a toy they’ve seen you hide.
• Movement: hold their head up, roll over, sit without support, and by around the first birthday pull to stand and “cruise” along furniture.

What helps most

Talk and read all day. Narrate what you’re doing, name what your baby sees, and read together daily — even to a wriggly infant. Chunky, chew-proof board books turn reading into a habit and are the single best thing for early language.

Give lots of floor time and tummy time to build the head, neck, and core strength behind rolling and sitting. Late in the year, simple cause-and-effect play — like an object-permanence box — feeds a baby’s new love of “where did it go?”

Face-to-face beats screens: the American Academy of Pediatrics recommends avoiding screen media (other than video chat) before about 18–24 months. Your attention is the richest input there is.

This is general guidance, not a screening or diagnosis. Every child develops differently — if you have concerns about your baby’s development, talk to your pediatrician; don’t wait. Milestone ranges here follow the CDC’s “Learn the Signs. Act Early.” framework.

Frequently asked questions

When should my baby start talking?

Babies usually coo in the first few months, babble by around 6 months, and say a first word or two around their first birthday — but the range is wide and normal. Responding to their name and “talking back” in babble are the signs to watch for. If your baby isn’t babbling or making eye contact by 9–12 months, mention it to your pediatrician.

How much tummy time does a baby need?

Start with a few minutes several times a day from the newborn weeks and build up as your baby gets stronger. Tummy time builds the head, neck, and core strength behind rolling, sitting, and crawling, and helps prevent flat spots. Always supervise, and keep sleep on the back.

Is screen time okay for a baby under 1?

The American Academy of Pediatrics recommends avoiding screen media before about 18–24 months, apart from video chatting with family. At this age, face-to-face talking, reading, and play do far more for the brain than any app or video.

When do babies start preschool?

Most preschools begin around age 2.5–3, often with potty training expected. Before that, care for infants and young toddlers is through home care, a nanny, or licensed daycare. See our guide on when to start preschool for the full picture.

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