- Definition
One-to-one correspondence means matching one item to exactly one other item, like giving one cookie to each child. When counting, it means touching or pointing to each object only once as you say its number.
When counting blocks, your child touches each block once while saying 'one, two, three.'
How to teach this in 30 seconds
Try this analogy: One-to-one correspondence is like giving each person at the table exactly one plate.
Ask your child: Can you give each of your toys one block?
Common mix-up: Kids may just recite numbers without pointing. The key is to match one number word to exactly one object as they count.
Examples
- Placing one hat on each doll's head.
- Drawing one line from each dog to its own doghouse.
one-to-one correspondence is a term used in Ontario’s Kindergarten to Grade 8 curriculum.
Where this shows up
The descriptions on this page are SmartStudy’s own original, plain-language writing — not the Ministry’s wording. They are aligned to the Ontario Curriculum, © King’s Printer for Ontario. For the Ministry’s official wording, see the source link below. SmartStudy is an independent service and is not affiliated with, endorsed by, or sponsored by the Government of Ontario or the Ministry of Education. Ontario Curriculum and Resources ↗
