1. W.A.L.T: Reading and Writing Co-ordinates

2. Our Aim To locate things using co-ordinate grids. 1 3 2 4 5 0 6 1234506

3. Definition x axis – a horizontal number line on a coordinate grid. 1234506 x

4. Hint x ‘is a cross’ (across ) 1234506 x

5. Definition y axis – a vertical number line on a coordinate grid. 1 2 3 4 5 0 6 y

6. Definition Coordinates – an ordered pair of numbers that give the location of a point on a grid. (3, 4) 1 2 3 4 5 0 6 1234506 (3,4)

7. Hint The first number is always the x or first letter in the alphabet. The second number is always the y the second letter in the alphabet. 1 3 2 4 5 0 6 1234506 (3,4)

8. How to Plot Ordered Pairs Step 1 – Always find the x value first, moving horizontally. 1 3 2 4 5 0 6 1234506 (2, 3) y x

9. How to Plot Ordered Pairs Step 2 – Starting from your new position find the y value by moving up. 1 3 2 4 5 0 6 1234506 (2, 3) y x

10. How to Find Ordered Pairs Step 1 – Find how far over horizontally the point is by counting to the right (positive) or the left (negative). 1 3 2 4 5 0 6 1234506 (5, 4) y x

11. How to Find Ordered Pairs Step 2 – Now count how far vertically the point is by counting up (positive) or down (negative). 1 3 2 4 5 0 6 1234506 (5,4) y x

12. What is the ordered pair? 1 3 2 4 5 0 6 1234506 (3,5) y x

13. What is the ordered pair? 1 3 2 4 5 0 6 1234506 (2,6) y x

14. What is the ordered pair? 1 3 2 4 5 0 6 1234506 (4,0) y x

15. What is the ordered pair? 1 3 2 4 5 0 6 1234506 (0,5) y x

16. What is the ordered pair? 1 3 2 4 5 0 6 1234506 (1,1) y x

17. Plot This Ordered Pair -2 0 1 2 -3 3 -2012-33 (-1, 2) y x

18. Plot This Ordered Pair -2 0 1 2 -3 3 -2012-33 (1, -1) y x

19. Plot This Ordered Pair -2 0 1 2 -3 3 -2012-33 (2, -2) y x

20. Plot This Ordered Pair -2 0 1 2 -3 3 -2012-33 (-3, -2) y x