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Your 16-Month-Old: Grouping, Climbing, and Naming What They See

By the Growbaby team · Published Aug 4, 2026

Written against AAP, CDC and WHO guidance. How we write these guides

A mother lifting her baby into the air outdoors

At a glance

  • Toys get gathered into rough groups: cars here, animals there.
  • Sofas, stairs and low shelves are all treated as things to climb.
  • Objects get named out loud, sometimes correctly, always confidently.
  • Imitations get closer to the original action, and the timing improves.
  • Furniture that seemed safe last month may need anchoring now.

Something shifts in how your toddler handles a pile of toys this month. Instead of picking things up one at a time, they start putting like with like, gathering all the cars or all the soft toys without being asked.

Climbing arrives at roughly the same point, along with naming things out loud and copying actions more accurately. Together they make for a month with a lot of upward movement and a lot of talking.

What is new this month

Grouping is categorisation in its earliest form. To put two cars together, your toddler has to hold an idea of car that survives the differences between them, which is serious mental work dressed up as tidying. The category usually rests on one obvious feature, so a round blue ball and a round blue plate may well end up in the same pile.

Climbing is the same curiosity that drove walking, applied vertically. Toddlers are generally better at getting up than getting down, and the gap between those two skills is where most falls happen. Anchoring bookcases and dressers, and offering something safe to climb, works better than trying to stop the impulse.

Naming makes vocabulary visible. When your toddler labels an object unprompted, they are practising the link between sound and thing, and getting it wrong is part of the process: calling every animal a dog is a category being tested rather than an error to correct sharply. Saying the right word back inside a normal sentence gives them the fix without the correction.

Week by week, in the app

Our paediatric specialist wrote one thing to notice and one thing to try for every week of the first three years. Here is what this month covers. The app works out which week your child is in from their birth date and brings each one to you on the day.

  1. Week 66Your baby is Grouping Objects
  2. Week 67Your baby is Trying to Climb
  3. Week 68Your baby is Naming Objects
  4. Week 69Your baby is Making Simple Imitations

This week, for your baby

Growbaby works out which week your baby is in from their birth date and brings that week's activity to you on the day, so you are not looking up where you are. Plus adaptive soothing for the nights and Growy for the questions in between.

This guide is for general informational purposes only. Growbaby is not a medical device and does not provide medical advice, diagnosis or treatment. Every baby develops at their own pace; for any question or concern about your baby's health or development, always consult your pediatrician or another qualified healthcare provider.