Comparing Freezing Points

This Comparing Freezing Points activity & project also includes:

Subtracting negative numbers can be confusing to your middle schoolers. Here, they are able to draw a number line and put their answer in sentence form to check their understanding of negative numbers. 

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CCSS: Designed
Pros

  • Good warm-up problem
  • Encourages sentence form answers
Cons

  • No examples of subtracting with negative numbers
Common Core