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Moving Squares

14 to 16

How can you represent the curvature of a cylinder on a flat piece of paper?

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Price Match

7 to 11

Can you find pairs of differently sized windows that cost the same?

problem

Latin Lilies

7 to 14

In this game you are challenged to gain more columns of lily pads than your opponent.

problem

Favourite

What is the Time?

5 to 11

Can you put these times on the clocks in order? You might like to arrange them in a circle.

article

Reasoning: Identifying Opportunities

5 to 11

In this article for primary teachers we consider in depth when we might reason which helps us understand what reasoning 'looks like'.

problem

Approximately Certain

14 to 18

Estimate these curious quantities sufficiently accurately that you can rank them in order of size

problem

Sports Equipment

7 to 11

If these balls are put on a line with each ball touching the one in front and the one behind, which arrangement makes the shortest line of balls?

problem

Double Cover

11 to 14

Weekly Problem 3 - 2007
What is the ratio of the area of the table covered twice, to the uncovered area?

problem

Triangular Clock

11 to 14

Trinni rearanges numbers on a clock face so each adjacent pair add up to a triangle number... What number did she put where 6 would usually be?

problem

Semicircle in a Semicircle

14 to 16

The diagram shows two semicircular arcs... What is the diameter of the shaded region?

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Moving Squares

Price Match

Latin Lilies

What is the Time?

Reasoning: Identifying Opportunities

Approximately Certain

Sports Equipment

Double Cover

Triangular Clock

Semicircle in a Semicircle