Sort and count with graphs
Charts and tallies show your child that numbers can answer real questions, like which snack the family likes best, a habit they will need in every grade and in daily life. In 2nd grade they make picture graphs and bar graphs with up to four groups, and in 3rd grade those graphs use scales where one picture stands for several things. Questions like "how many more" also give extra practice with subtraction.
In this video, your child will learn to sort things and make a graph.
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 shapes are there in all?
Example 2
How many fewer rainy days than sunny days?
Your child's turn
How many more stars than moons?
The three key steps
- 1Count the pictures in each row.
- 2Add the rows to find how many in all.
- 3Subtract to find how many more or fewer.
Mistakes to listen for
- Answering only for the biggest group when asked how many there are altogether, instead of adding all three groups.
- Naming the apple total, 6, for "How many more chose apples than grapes?" instead of finding the difference, 3.
- Losing or double counting items while sorting, so the group totals no longer add up to the whole collection.
The lesson shows every step, so your child sees why it works. Read our parent's guide to sorting, tallying, and reading simple charts →
Is your child ready to practice what they've learned?
Bobby's Math Club offers unlimited practice for free.
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More 1st grade Measurement & Data, 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 sorting, tallying, and reading simple charts, 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 sorting, tallying, and reading simple charts 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 sorting, tallying, and reading simple charts
Questions at your child's level, about five minutes a day, on sorting, tallying, and reading simple charts and whatever PK-5 skills they need to develop. Unlimited practice, free forever.
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