### 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?

### Three Squares

What is the greatest number of squares you can make by overlapping three squares?

# Sounds Great!

##### Stage: 1 Challenge Level:

We have two animals in this activity - a donkey and an owl - and what a noise they can make!
You have lots of each animal, and the idea is to drag them onto the wheel. As they go round on the wheel, they each make their own sound.
Place two or three animals on the wheel and have a listen.
You can mix them - two owls and one donkey, one donkey and one owl, or you might like to stick to all owls or all donkeys.
What is the difference between the sound of the largest donkey and the smallest donkey?
What is the difference between the sounds of the different sized owls?

You can make the wheel go round at three different speeds. Use the controls to choose slow (1), normal (2) or fast (3).
You can also decide how many times the wheel will turn (up to 10 times).
Have a go.
See what you notice and talk to others about it - please tell us what you find out.

When the wheel has stopped, I want to have heard two owl "twittwoos" and four donkey "eeyores". How could I do that?
Can I put animals on the wheel so that I hear owl, donkey, owl, donkey, owl, donkey ...? Explain your answer.

Full Screen Version
If you can see this message Flash may not be working in your browser
Please see http://nrich.maths.org/techhelp/#flash to enable it.