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Secondary Interactive Resources
These resources for students aged 11+ have interactive content, making them ideal for students to tackle on tablets or laptops.
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Going Deeper: Achieving Greater Depth With Geometry
This article for Primary teachers outlines how providing opportunities to engage with increasingly complex problems, and to communicate thinking, can help learners 'go deeper' with geometry.
problem
Triangle in a Square
7 to 11
Do you agree with Badger's statements? Is Badger's reasoning watertight? Why or why not?
problem
Succession in Randomia
16 to 18
By tossing a coin one of three princes is chosen to be the next King of Randomia. Does each prince have an equal chance of taking the throne?
problem
Pebbles
7 to 11
Place four pebbles on the sand in the form of a square. Keep adding as few pebbles as necessary to double the area. How many extra pebbles are added each time?
problem
Favourite
Attractive Tablecloths
14 to 16
Charlie likes tablecloths that use as many colours as possible, but insists that his tablecloths have some symmetry. Can you work out how many colours he needs for different tablecloth designs?
problem
Favourite
Surprising Transformations
14 to 16
I took the graph y=4x+7 and performed four transformations. Can you find the order in which I could have carried out the transformations?
problem
Favourite
Polygon Rings
11 to 14
Join pentagons together edge to edge. Will they form a ring?
article
Inspect Your Gadgets
Read about the mathematics behind the measuring devices used in
quantitative chemistry
problem
Polite Numbers
16 to 18
A polite number can be written as the sum of two or more consecutive positive integers, for example 8+9+10=27 is a polite number. Can you find some more polite, and impolite, numbers?