png, 3.28 KB
png, 3.28 KB
html, 702 Bytes
html, 702 Bytes
Patterns and Sequences
Key Stage: 3 ★

Can you use the interactivity to help you to quickly calculate triangle numbers?

This problem offers students an opportunity to relate numerical ideas to spatial representation, and vice versa. The interactivity allows students to explore large triangle numbers. Visualising the combination of two identical triangle numbers can lead to an understanding of the general formula for triangle numbers.

This resource has comprehensive teachers' notes and resources, linked from the problem page. This includes possible approaches and key questions, as well as possible support and extensions.


The file attached is a HTML file, which, when opened, automatically redirects you to the problem on the NRICH website.
Creative Commons "Sharealike"

Review

4

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markhquinn

12 years ago
4

Great activity for bright KS3 students

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