A coordinate system has two axes that meet at the origin.
The axis going right counts how far a point lies to the side.
The axis going up counts how high the point lies.
This is how you read off a point:
1. From the origin go to the right first and read off the number.
2. Then go upwards and read off the second number.
3. Write both numbers as a pair, for example (2 | 3).
In the example below the answer written in shows what the pair looks like.
Example
A: (2 | 3)
B: (5 | 1)
C: (1 | 5)
D: (4 | 4)
For parents
What does this exercise practice?
Reading the coordinates of points in a grid and writing them down as a pair of numbers.
Common pitfalls
Children often swap the order. It is always to the right first, then upwards.
How to practice at home
Draw a small pair of axes on squared paper, mark points and read off the coordinates together.
Related: Magic picture