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### Number and algebra

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# A City of Towers

You could draw the houses on squared paper or make them with cube bricks.

How will you know you have found all the different houses?

You could start by finding all the houses for four people, then five people etc.

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Age 5 to 7

Challenge Level

- Problem
- Getting Started
- Teachers' Resources

You could draw the houses on squared paper or make them with cube bricks.

How will you know you have found all the different houses?

You could start by finding all the houses for four people, then five people etc.

Vincent and Tara are making triangles with the class construction set. They have a pile of strips of different lengths. How many different triangles can they make?