Skip to main content
depth 0m · surfaceFirst Year

0–12 months.

The fastest year of brain growth a human ever has. Eighty-six billion neurons, learning what a face is, what a voice means, what comes after the cry.

  • 29articles
  • 24products
  • 1free printable
Nomi Radio
NonstopMinds · Lullaby Library · NonstopMinds · Lullaby Library · NonstopMinds · Lullaby Library
The shoals· depth 5m

The research swims past.

Reach in and pull out a question. The full archive is below.

baby-developmentTwelve-month-old baby leaning forward reaching for a soft ball on a cream blanket while mother sits across in a rolling-back-and-forth turn-taking activity

Activities for a 1 Year Old: What the First Birthday Actually Changes

The first birthday comes with a lot of milestone checklists — and a lot of quiet anxiety about whether your baby is hitting them on time. Here's what most activity guides skip: in 2022, the CDC moved both walking and first words to fifteen months. Twelve months is not a finish line. It's the moment when three specific cognitive shifts happen simultaneously, and each one changes what good play actually looks like.

16 min readRead →
baby-developmentEleven-month-old baby holding out a wooden spoon toward mother seated on the rug — show-and-give gesture as the precursor to pointing in activities for 11 month old language development

Activities for an 11 Month Old: When the Body Starts Doing the Talking

Most lists of activities for an 11 month old will tell you to start working on pointing — but the research from the last few years says that's a month early. The gesture you actually want to notice is one your baby already does forty times a day. Eleven months is when the body starts doing the talking, and the activities that earn their place are the ones that respond to gestures already happening.

15 min readRead →
baby-developmentTen-month-old baby cruising along the front edge of a couch while father sits on the floor watching — gross motor development and cruising activities for 10 month old babies

Activities for a 10 Month Old Baby: What Actually Changes This Month

Ten months is when one specific thing about language clicks into place. A 2013 study from Bergelson and Swingley pinpointed it: the meaning of "uh-oh" and "all gone" starts mapping right around now. The activities that fit a 10-month-old aren't more toys but a quieter set of shifts — narration with abstract words, in-and-out container play, real cruising space, and a wake-window rhythm that fits at home, in the car, even on a plane.

13 min readRead →
baby-milestonesFive-month-old baby just after first accidental roll lying on tummy on cream blanket with mother kneeling behind — illustrating when babies roll over for the first time

When Do Babies Roll Over? The Three Answers, and Why Direction Matters

The first roll usually arrives by mistake, with a soft thud and a startled face. Then nothing happens for two weeks. So when do babies roll over — the accidental version, the deliberate version, or the both-directions-on-demand version? Three different timelines, a 2022 CDC update most parents missed, and a study of 240 Hong Kong infants that flips the textbook "tummy-to-back-first" rule on its head.

15 min readRead →
baby-developmentTwelve-month-old baby taking first independent steps on a cream rug toward kneeling mother — illustrating when do babies start walking on their own

When Do Babies Start Walking? Why the Weeks After Matter More

Most articles answer "when do babies start walking" with a date and stop there. The more useful answer is what happens in the weeks after the first step — vocabulary accelerates, the room gets re-mapped, and the baby's social conversation with the parent reorganizes itself. The 2014 study that made the link, the 2023 follow-up that explained why, and what to do with it before the first step.

15 min readRead →
baby-developmentMother with light brown skin watching her 7-month-old in golden yellow onesie rocking on hands and knees during pre-crawling stage on a cream surface

When Do Babies Start Crawling? A Guide to the Most Variable Milestone

In 2022, the CDC quietly removed crawling from its milestone checklist. The scientific literature could not even agree on what crawling is, or when 75% of babies should be expected to do it. Here is the honest answer to one of the first year's most-Googled questions, with the variability that parenting blogs tend to bury.

18 min readRead →
The kelp forest· depth 20m

Free printables.

No email gate. Print, fold, use.

Uncharted· depth 50m

Reefs in progress.

Coming soon

Online activities

Crosswords, color-alongs, gentle games.

Coming soon

Books we love

A reading list with the why behind each title.