Algebraic Expressions, Formulae
Key Stage: 3 ★
Start with any number. Follow the instructions given, and see what number you end up with. Does the same thing always happen?
This problem provides a great opportunity to introduce a very useful way of representing operations on unknown numbers visually and symbolically (algebraically).
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.
Key Stage: 3 ★
Start with any number. Follow the instructions given, and see what number you end up with. Does the same thing always happen?
This problem provides a great opportunity to introduce a very useful way of representing operations on unknown numbers visually and symbolically (algebraically).
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.
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