Problem Solving Series: Triangular Numbers

Challenge yourself to a problem solving task!

In this series one of our teachers works through a problem solving task showing you how they would solve it and common misconceptions students have when solving it. Try solving the problem on your own first before watching the solutions in the video.

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This week's problem is Triangular Numbers from NZ Maths

Watch the full video of how we work through the Triangular Numbers problem. Watch at your own pace and pause when you need to. Did you use the same strategies or do something different?

When attempting this task, many students make this common mistake.

Another strategy is drawing out each triangular number until you get to number 10 and number 20.

Try this strategy to challenge yourself.

We hope you enjoyed challenging yourself with this week's problem solving task and finding out what teachers would expect from this task. 

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