Triangular Numbers & Sums of Sequences

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Taught by IsAllAboutMath
  • Currently 3.0/5 Stars.
1928 views | 1 rating
Part of video series
Lesson Description:

Learn how to generalize a sequence and find related sums by using triangular numbers and their geometric interpretation.

Questions answered by this video:
  • How can you find the nth triangular number geometrically?
  • Why is the sum of two consecutive triangular numbers equal to a square number?
  • How are triangular and square numbers related?
  • What is abstraction?
  • What is generalization?
  • Staff Review

    • Currently 3.0/5 Stars.
    This video explains some very interesting geometrical and algebraic properties of triangular and square numbers. It shows a geometrical way of thinking about computing these numbers. Then, this video explains how sequences are generalized and how their sums can be found.