Guess and Check

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How can you find the solution to an addition or subtraction problem by guessing? Practice the guess-and-check strategy with a fun math activity based on Ms. Squid's ink mess on the homework. Kids determine which number is covered by the ink in each problem using reasonable guesses.

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CCSS: Adaptable
Instructional Ideas

  • Include in a homework packet for extra practice
  • Have kids work together in small groups or in a math center to complete the worksheet
  • Come up with additional magic squares for kids to work on
Classroom Considerations

  • The example focuses on a magic squares activity, but the actual exercise contains standard problems rather than magic squares
Pros

  • Includes a fun story that goes with the math worksheet
  • A good strategy to introduce to learners before moving on to more complex concepts
Cons

  • None
Common Core