Instructional Video

Series

Curated and Reviewed by Lesson Planet

Add it all together. Pupils learn how Gauss was able to add the numbers from 1 to 100 so quickly and arrive at a formula to find the sum of a given number of terms of an arithmetic series. Scholars learn the formula to find the sum for a geometric series. Using the formulas, they solve a variety of problems.

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CCSS: Adaptable
Instructional Ideas
  • Confirm class members know how to identify arithmetic and geometric sequences
Classroom Considerations
  • Expects the class to know how to solve exponential and quadratic equations
  • Segment two of a three-part sequence and series unit 
  • This video is hosted on YouTube
Pros
  • Provides two additional worksheets to help struggling learners reach mastery
  • Shows each step while solving problems
Cons
  • None