Most toddlers can recite "one, two, three, four, five" well before they turn two. Parents understandably take this as a sign their child can count. It usually isn't — and the gap between reciting numbers and actually understanding them matters more than it sounds like it should.
Reciting the number sequence is a memorized chant, the same part of the brain that learns the alphabet song. Counting, in the way that actually matters for math later on, requires something different: knowing that the last number you say when you count a group tells you how many are in it. Researchers call this cardinality, and most children don't reliably grasp it until somewhere between two and a half and four years old — often well after they've been reciting numbers for a year or more.
The skill hiding underneath cardinality
Before a child understands cardinality, they usually pass through a stage where they can instantly recognize small quantities without counting at all — looking at two dots and just knowing it's two, the same way you instantly recognize two coins on a table without counting them one by one. This is called subitizing, and it's a strong predictor of later math skill. It's also one of the easiest things to build at home, with nothing more complicated than everyday objects: two shoes, three crackers, one banana.
A simple way to tell where your toddler actually is
Put down a small group of objects — say, three blocks — and ask "how many?" If your child counts "one, two, three" and then, without prompting, repeats "three" as the answer, that's a real sign of cardinality starting to click. If they count to three but then look at you for what comes next, they're still in the reciting stage — which is completely normal, not a problem to fix.
What actually builds this, instead of flashcards
Counting real objects out loud, one at a time, while touching each one, builds something flashcards can't: one-to-one correspondence — the understanding that each number word matches exactly one object, no skipping, no double-counting. This is the quiet skill underneath everything that looks like "counting" later.
This is the exact progression — subitizing, one-to-one correspondence, then cardinality — that My First Numbers is built around, using real photographed objects instead of illustrations, because toddlers transfer what they learn from real photos to the real world more reliably than from cartoons.