#### You may also like

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!

### Cutting Corners

Can you make the most extraordinary, the most amazing, the most unusual patterns/designs from these triangles which are made in a special way?

### Cut and Make

Cut a square of paper into three pieces as shown. Now,can you use the 3 pieces to make a large triangle, a parallelogram and the square again?

# World of Tan 28 - Concentrating on Coordinates

##### Age 7 to 11 Challenge Level:

This activity follows on from World of Tan 27 - Sharing .

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.

On a sheet of paper covered with dots Little Ming and Little Fung are playing a game.
It is almost suppertime and Granma T is busy preparing the meal. Repeated requests to clear the table and set out bowls and chopsticks have gone unheard.

Granma T: For the last time MOVE and SET the TABLE!

Taken by surprise the two children splutter..

LM: We were only doing our homework.

LF: And I was winning.

GT: Perhaps over supper you will explain what has kept you so engrossed; that has got Mai Ling and Chi Ping so animated while the workmen appear to have forgotten they come here to work.

LM: It is game we have been taught at school

LF: To help us learn all about coordinates.

GT: Coordinates you mean a point P (x , y). That takes me back now what did we call them back then?

LF: Call what Granma T?

GT: An ordered sequence of two numbers that locate a point on a sheet of paper - the plane.

LM: Plain! What do you mean Granma T?

GT: Yes a point on the plane and an ordered sequence of three numbers locates a point in space.

LF: No, no Granma T! This is just a game we will show you after supper - you might like to play!

GT: And is this the game everyone in the yard has been playing?

LM: I am afraid so but there was not that much to do anyway that could not wait!

GT: So I am paying others to play games? Even Mai Ling was playing wasn't she?

GT: Now let us eat.

In the meantime, complete the silhouette of Little Ming studying the board game and trying to win.

You can play Little Ming and Little Fung's game in Play Games .

There are more activities in the notes . The story continues in World of Tan 29 - The Telephone .