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🧺 Sorting and Counting

Sort objects into groups by color, size, or kind, count how many land in each group, and put the groups in order from most to fewest.

3
lessons
~15 min
to learn
🔢 Math
subject
Ages 6–12
level
Start the course →

What you’ll learn

  1. Sort Into GroupsSort objects into categories using a single rule such as color, size, or kind.Sorting means grouping things that are alike. First pick one rule — color, size, or kind — and that rule decides where every object goes. The same objects can be sorted a new way just by changing the rule.
  2. Count Each GroupCount the number of objects in each category, touching one object per number.After sorting, count each group on its own. Touch each object and say one number; the last number you say is the total. Writing the count for each group keeps the numbers straight.
  3. Most to FewestCompare category counts and order the groups from most to fewest.Once every group has a count, you can compare them. The biggest number is the most and the smallest is the fewest. Lining the groups up from most to fewest — like bars in a chart — makes comparing quick and clear.

Questions this course answers

If you sort toys BY COLOR, where does a red car go?

When the rule is color, a red car goes with the other red things.

You can sort the same rocks by color OR by…

The same objects can be sorted a new way, such as by size.

Which group is bigger: 3 apples or 2 bananas?

3 is more than 2, so the apples are the bigger group.

Groups have 5, 3, and 2 objects. Which has the MOST?

5 is the biggest number, so that group has the most.

Put in order from MOST to FEWEST: 3, 5, 2.

Most to fewest means biggest to smallest: 5, 3, 2.

Grounded in trusted sources

  • PBS Kids — early math
  • Khan Academy Kids
  • NAEYC — early math learning
  • National Council of Teachers of Mathematics (NCTM)

Every Wunder lesson is built from real, reputable sources — never invented.

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