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# Making Longer, Making Shorter

Try making Ahmed's rods out of cubes yourself. You could start by making his first rod out of four cubes.

If Ahmed's second rod is twice as long as the first, how many of his first rod did he need to make it? Try for yourself.

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Age 5 to 7

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Try making Ahmed's rods out of cubes yourself. You could start by making his first rod out of four cubes.

If Ahmed's second rod is twice as long as the first, how many of his first rod did he need to make it? Try for yourself.

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?