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This Sequence of Partial Sums: Partial Sums interactive also includes:
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Have some fun building squares out of triangles. Pupils investigate the partial sums of odd numbers. Using the sum of the first four odd numbers, learners see that it can be rewritten as a sum containing a triangular number. Simplifying the expression, scholars recognize the sum is a perfect square.
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Instructional Ideas
- Lead a discussion on the properties of triangular and square numbers
Classroom Considerations
- Class members should be able to simplify algebraic expressions
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Pros
- Provides feedback about the correct answer for many of the questions
- Includes additional practice within the supplemental material
Cons
- None