Explaining, convincing and proving
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problemFavouriteTriangle or no triangle?
Here is a selection of different shapes. Can you work out which ones are triangles, and why?
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problemFavouriteFruity pairs
Which two items of fruit could Kate and Sam choose? Can you order the prices from lowest to highest?
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problemFavouriteArranging additions and sorting subtractions
Order these four calculations from easiest to hardest. How did you decide?
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problemFavouriteColouring triangles
Explore ways of colouring this set of triangles. Can you make symmetrical patterns?
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problemFavouriteChain of changes
In this activity, shapes can be arranged by changing either the colour or the shape each time. Can you find a way to do it?
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problemFavouriteSkeleton shapes
How many balls of modelling clay and how many straws does it take to make these skeleton shapes?
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