### 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

A game for 2 people that can be played on line or with pens and paper. Combine your knowledege of coordinates with your skills of strategic thinking.

# Coordinate Tan

##### Stage: 2 Challenge Level:

Remember that the origin is $(0,0)$. Watch out for negative coordinates! When you change the origin, look carefully at each old point compared with its new position. Ask yourself:

• What has happened to the $x$ coordinate?
• What has happened to the $y$ coordinate?