Consecutive Number Sums

Determine equivalent methods to find sums of consecutive numbers. Learners watch a video of a computer program that finds the sum of five consecutive numbers given a starting number. Pupils hypothesize how to determine the sum without adding each number. Finally, classmates share and compare their solutions.

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CCSS: Designed
Instructional Ideas
  • Ask learners to come up with the expression that would give the answer to five consecutive odd or even numbers
  • Use the activity to introduce equivalent expressions
Classroom Considerations
Pros
  • Provides connections to highlight
  • Includes a link to the program to investigate further
Cons
  • None