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How can the same pieces of the tangram make this bowl before and after it was chipped? Use the interactivity to try and work out what is going on!

### Teddy Town

There are nine teddies in Teddy Town - three red, three blue and three yellow. There are also nine houses, three of each colour. Can you put them on the map of Teddy Town according to the rules?

### Four Triangles Puzzle

Cut four triangles from a square as shown in the picture. How many different shapes can you make by fitting the four triangles back together?

# Rod Ratios

##### Stage: 2 Challenge Level:

You may like to use our Cuisenaire rod environment for the problem below. Here is the environment (just scroll down for the problem itself):

FULL SCREEN VERSION

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Here are three pairs of rods. The ratio of all the pairs is 3 : 2.

What is the ratio of the pair below?

Using only single rods what pair can you find with the same ratio as the pair below?

Using only pairs of single rods what pairs can you find with the same ratio as those below?

Using only pairs of single rods what pairs can you find with the ratio 9 : 6?