Triangular Numbers

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Taught by IsAllAboutMath
  • Currently 4.0/5 Stars.
3687 views | 3 ratings
Meets NCTM Standards:
Lesson Description:

An introduction to triangular numbers.

Questions answered by this video:
  • What are triangular numbers?
  • How do you find triangular numbers?
  • How can you compute the nth triangular number?
  • How did Gauss find the sum of natural numbers from 1 to 100?
  • Staff Review

    • Currently 3.0/5 Stars.
    This is a very basic video about triangular numbers, but the visuals help show them in a meaningful way. To find any triangular number, the video explains finding the sum of all natural numbers from 1 to n using a method that Gauss found. This historical anecdote is also explained.
  • Aishah

    • Currently 4.0/5 Stars.
    good it was okay but could be better thanks