Problem Solving Series Triangular Numbers

Can you solve the problem? One of our teachers at Total Teaching works through the

This video explains how to find the nth triangular number. For a refresher on triangular numbers see our video: https://youtu ...

This video explains what triangular numbers are and the patterns associated with them. Two puzzles are at the end of the video ...

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Triangular Numbers - Problem solving

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We give a zero formula, visual proof of the combinatorics of

This pre-algebra video tutorial explains how to find the next term in a

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Using material to develop conceptual understanding of

Triangular Numbers

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This is a short, animated visual proof showing how to find the sum of the first n