How to use this sheet

  • Have the child read the label of each circle or row and say it as a question: is it even? is it more than 20?
  • Test each number against both labels before placing it.
  • Have the child check the overlap last: which numbers fit both?

Common mistakes

  • Putting a number that fits both labels in only one circle. It goes in the overlap.
  • Leaving out numbers that fit neither label. They go outside the circles.
  • Reading a Carroll diagram row as a column.

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