Your 17-Month-Old: Balls, Puzzles, Spoons, and Big Feelings
By the Growbaby team · Published Aug 4, 2026
Written against AAP, CDC and WHO guidance. How we write these guides
At a glance
- Throwing comes long before catching, and aim is not the point yet.
- Puzzle pieces get tried in every hole before the right one.
- A spoon is used with intent, and a good deal of food goes elsewhere.
- Emotions show up whole: delight, fury and grief, at full size.
- Music produces bouncing, swaying, or a very serious nodding head.
Halfway through the second year, several different threads start moving at once. Balls get thrown, puzzle pieces get pushed at holes, a spoon gets used with real intent, and feelings arrive at full volume.
Music becomes part of it too, with bouncing and swaying to a beat. These weeks cover throwing and catching, simple puzzles, eating independently, emotional expression, and responses to rhythm.
What is new this month
Throwing and catching are not two halves of one skill. Throwing needs a release at the right moment, which toddlers manage early, while catching needs a prediction of where a moving object will end up, which takes considerably longer. Moving to music draws on related timing, since matching a bounce to a beat means anticipating when the next one lands.
Puzzles and self-feeding both come down to the hands. Fitting a shape into a slot asks the wrist to rotate while the fingers hold steady, and loading a spoon asks for the same control in a different direction. Mess is not a sign it is going badly, it is the visible part of the learning.
Big emotions at this age are not manipulation and not a discipline problem to be solved. Your toddler now feels things clearly but has almost none of the machinery for managing them, so the feeling arrives and takes over. Naming what you see, calmly and briefly, gives them the words they will eventually use in place of the outburst.
Week by week, in the app
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.
- Week 70Your baby is Throwing and Catching a Ball
- Week 71Your baby is Trying Simple Puzzles
- Week 72Your baby is Eating Independently
- Week 73Your baby is Showing Emotions
- Week 74Your baby is Responding to Rhythm
Read next
- When Do Babies Start Walking?First unaided steps arrive anywhere from about 9 to 18 months, and the whole of that span is ordinary.
- Baby Sleep Regressions: What They Are and When They HappenA sleep regression is a description of a pattern, not a medical diagnosis.
- If Your Toddler Is Not Talking YetYou can request a free evaluation yourself. No doctor's referral and no diagnosis are needed first.
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.
Frequently asked questions
Throwing comes long before catching, and aim is not the point yet. Catching needs prediction and timing that arrive considerably later.
By trying every hole before the right one, which is the method rather than a failure of it. Letting the trying run a little longer than feels comfortable is usually what gets the piece in.
Because they arrive whole. Delight, fury and grief all show up at full size at this age, with none of the dampening that comes later, and none of the words that would let your child explain them.
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.