What do preschoolers learn about cardinal numbers?
Cardinal numbers tell how many. In preschool, kids learn that when they count a group of objects, the last number they say is the total. If they count "1, 2, 3, 4" bears, there are 4 bears. They practice touching each object once, counting up to 10, and matching numbers to groups. They also start seeing small amounts, like 3 dots, without counting. The click comes when a child counts their crackers and proudly says, "I have five!" instead of counting again.
Our favorite ways to teach cardinal numbers in preschool
Little ones learn "how many" by counting real things again and again. Here's what works for us.
Count with a song
Sing a counting song while holding up fingers for each number. Stop at a random number and ask, "How many fingers?" Kids learn that the last number sung tells the total.
Why it works: a catchy, repeating tune gives the brain a hook to hang words on, so sung text is remembered better (Wallace, 1994).
Show kids how to touch each object once while counting out loud. Then ask "How many?" and repeat the last number with emphasis. Use a short screen lesson for extra practice in centers.
Why it works: handing over the work step by step, from teacher to student, is one of the most widely used teaching frameworks (Pearson and Gallagher, 1983).
Count the kids at circle time, the cups at snack and the steps to the playground. Ask "How many?" every time. Quick daily counting builds number sense faster than one long lesson.
Why it works: the brain holds on to what it meets again and again over time; spaced practice was rated among the very best methods (Dunlosky and colleagues, 2013).
Questions parents and teachers ask about cardinal numbers
What is a cardinal number?
A cardinal number tells how many of something there are, like 3 apples or 5 cars. It's different from an ordinal number, which tells position, like first or second.
What is the cardinality principle?
It's the understanding that the last number counted tells how many are in the group. When a child counts 1, 2, 3, 4 and knows there are 4, they understand cardinality.
How high should a preschooler count?
Many preschoolers count to 10 or 20 by the end of the year. Counting objects accurately up to 10 is a great goal for this age.
My child can count to 20 but can't tell me how many. Is that normal?
Yes. Reciting numbers and understanding quantity are different skills. Practice counting real objects and always end by asking, "How many are there?"
Written by the Have Fun Teaching team of elementary teachers and homeschoolers. Research: Wallace, W. T. (1994). Memory for music: Effect of melody on recall of text. Journal of Experimental Psychology: Learning, Memory, and Cognition, 20(6). Pearson, P. D., & Gallagher, M. C. (1983). The instruction of reading comprehension. Contemporary Educational Psychology, 8(3). Dunlosky, J., Rawson, K. A., Marsh, E. J., Nathan, M. J., & Willingham, D. T. (2013). Improving Students' Learning With Effective Learning Techniques. Psychological Science in the Public Interest, 14(1).
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