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Stage 3 and 4 Toughnuts

These Stage 3 and 4 problems have not yet been solved. Can you be the first?

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Exploring Area

I wonder what we can find out about the areas of polygons drawn on dotty grids...

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Exploring Coordinates and Vectors

I wonder what we can find out when using coordinates and vectors on dotty grids...

Send Us Your Thoughts

This is the place to share how you got started on the problem, and any conclusions you have reached.

You can also share any questions you've come up with, and any progress you've made answering those questions.

You can upload pictures, documents or spreadsheets - whatever you like, as long as the file is less than 2MB.

You might also want to send a link to a video or picture you've uploaded somewhere else on the web. Please explain a little about what you have done, so we can share it with other students. 

It would also be nice to share a little information about everyone who contributes, so please feel welcome to include your name, age, school and country.