(Lectures Index) Is All About Math Video Podcast at iTunes
Lecture Level: Easy
Lecture Length:5:52 minutes






Lecture Index
0.25Pythagoras
0.36Triangular numbers
1.38Guess the next triangular number
1.56triangular number definition
2.49Gauss story about the sum of first 100 natural numbers
4.15problem
4.29solution



Elementary explanation of triangular numbers and Gauss demonstration for the sum of the first 100 natural numbers.

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