Count how many, up to 20
Your child will count groups of things every day, from coins in a jar to plates for every guest. In math, accurate counting is the base for adding and comparing groups in kindergarten, and for 1st grade, where children count bigger collections by bundling them into tens. Keeping track of what has been counted also builds the habit that makes later problem solving careful rather than rushed.
In this video, your child will learn to count to find how many, to twenty.
The lesson stops at each question for your child's answer.
Three problems, each a little harder
Each problem is worked step by step. Your child will solve the last one before Bobby shows how.
Example 1
How many dots?
Example 2
How many dots?
Your child's turn
How many dots?
The three key steps
- 1Say one number for each dot.
- 2In a circle, don't count the first dot twice.
- 3The last number tells how many.
Mistakes to listen for
- Jumping between the two rows of an egg carton, losing track of which eggs are done and ending with 10 or 14.
- Counting out 17 blocks when asked, then adding more because they are not watching for the moment to stop.
- Counting 9 scattered cars correctly, but recounting some when there are 10, because the bigger pile is harder to track.
The lesson shows every step, so your child sees why it works. Read our parent's guide to counting groups of up to 20 things →
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More Kindergarten Numbers & Place Value, with questions your child answers along the way.
Questions parents ask
Does my child need an account to watch?
No. You can watch this on any device at any time. If your child would like to practice counting groups of up to 20 things, and you'd like parent-friendly reports on your child's progress and growth, you can join Bobby's Math Club for unlimited free practice.
What happens when my child answers a question?
A right answer gets a cheer, and the lesson carries on. If your child isn't sure, they can tap "I don't know yet", and Bobby gives the answer and shows another example. Nothing is scored or stored.
Is this the same lesson that's on YouTube?
Yes. Here, the lesson stops at each question and waits for your child to answer. On YouTube, each question stays on screen for a few seconds, and then the lesson plays on.
Where can I learn more?
There's a short, kid-friendly lesson like this one for every Pre-K to 5th grade math skill, all in our video library. Our parent's guide to counting groups of up to 20 things has more on where kids get stuck and how you can help at home. In the club, your child practices at just the right level, about five minutes a day, and you get parent-friendly reports as they grow. Learn more about how it works →
Practice counting groups of up to 20 things
Questions at your child's level, about five minutes a day, on counting groups of up to 20 things and whatever PK-5 skills they need to develop. Unlimited practice, free forever.
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