# Three Cubed

Can you make a 3x3 cube with these shapes made from small cubes?

Can you make a $3\times 3$ cube with these shapes made from small cubes?

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You can record your answer as either pictures or as a net of the cube.

Make the shapes from interlocking cubes such as
"multilink".

The central small cube is blue.

We had great solutions to this problem from children at Cupernham Junior School and also from Christopher. Both Scarlett from Cupernham and Christopher began by drawing the faces of the cube they had made:

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However, it is a little difficult to be clear how the sides fit together and Scarlett explained that she decided to draw the results as a net instead:

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Then her friends joined in and sent us different nets of the same cube:

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Thank you to you all for emailing us with your answers.

### Why do this problem?

This problem is one which can help learners to relate 2-D representations and 3-D shapes. It is definitely one which requires making the shapes practically from interlocking cubes such as "multilink" using the 2-D drawings and then recording on squared paper (preferably in colour).### Key questions

Which shape are you making now?

How can those two shapes fit together?

Which side of the cube are you recording now?

Which side of the cube comes next to that side?