List

What's algebra all about?

Ip Dip
problem

Ip dip

Age
5 to 11
Challenge level
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"Ip dip sky blue! Who's 'it'? It's you!" Where would you position yourself so that you are 'it' if there are two players? Three players ...?

Super Shapes
problem

Super shapes

Age
7 to 11
Challenge level
filled star empty star empty star

The value of the circle changes in each of the following problems. Can you discover its value in each problem?

Plenty of Pens
problem

Plenty of pens

Age
7 to 11
Challenge level
filled star empty star empty star

Amy's mum had given her £2.50 to spend. She bought four times as many pens as pencils and was given 40p change. How many of each did she buy?

Shape Times Shape
problem

Shape times shape

Age
7 to 11
Challenge level
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These eleven shapes each stand for a different number. Can you use the number sentences to work out what they are?

Sticky Triangles
problem

Sticky triangles

Age
7 to 11
Challenge level
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Can you continue this pattern of triangles and begin to predict how many sticks are used for each new "layer"?