### Coordinate Tan

What are the coordinates of the coloured dots that mark out the tangram? Try changing the position of the origin. What happens to the coordinates now?

### A Cartesian Puzzle

Find the missing coordinates which will form these eight quadrilaterals. These coordinates themselves will then form a shape with rotational and line symmetry.

### Criss Cross Quiz

A game for 2 players. Practises subtraction or other maths operations knowledge.

# Coordinate Cunning

##### Stage: 2 Challenge Level:

This month's game is linked with our World of Tan. It is for 2 players. Little Mai and Little Fung explain how you play:

This text is usually replaced by the Flash movie.

LM: First you must decide where to place the origin, (0,0). It can be anywhere.

LF: Now you must decide who is blue and who is red.

LM: Blue goes first and chooses a point. Blue has to state the position of their chosen point in relation to the origin.

LF: BUT, if you get the coordinates of the dot wrong, you don't get that point.

LM: And you lose a go.

LF: Red now chooses a point and gives its coordinates.

LM: You then take it turns to go?

LF: Until one person has four dots in line of their colour.