One to one correspondence is the ability to match a each member of one set to each member of a second set. This could mean while setting the table, setting one plate, one fork, and one spoon for each member of the family. It could mean separating specific amounts of crackers for snacks, or giving one ball to each friend. Click here for another post about one to one correspondence.
One to one correspondence is a foundational math skills. A popular activity is called egg carton counting. Supplies include an empty egg carton, some numbered cards (I used Uno), and some sort of counters.
Invite your child to draw a card and identify it’s name. Then have your child count the appropriate number of counters into the egg carton, one counter in each space.
Take care to make sure that only one counter is in each egg compartment. Hence one to one correspondence. Have your child count the counters a second time once they are all in the carton. This is just for additional practice.
Enjoy!

I’m Sarah, an educator turned stay-at-home-mama of five! I’m the owner and creator of Stay At Home Educator, a website about intentional teaching and purposeful learning in the early childhood years. I’ve taught a range of levels, from preschool to college and a little bit of everything in between. Right now my focus is teaching my children and running a preschool from my home. Credentials include: Bachelors in Art, Masters in Curriculum and Instruction.
Great idea!!!!
Thanks for sharing with my Super Link Party! 🙂
Great info, love the idea of drawing a card. Pinning this!
Having them go back and count again helps them to check their work and make sure they got it right. Great activity! Thanks for sharing at Mom’s Library!
Great post.
Cathie at toddlersthroughpreschool.com
Great activity and such an important skill. Thank you for linking up to The Sunday Showcase.