Year 7

1. Year 7 Grid References

2. S D S C D Grid References • Let’s play battleships Grid references 1 2 3 4 5 6 7 A B C D E F X X C X B2 X D3 C5 F7 X A4

3. Grid References • Copy out the grid • Name each column and row • Shade the column 83 in green • Shade the row 35 in red • Shade the square 8335 in red and green stripes • This gives a four figure grid reference • 83 35 Grid references 38 37 36 35 34 33 32 81 82 83 84 85 86 87

4. Grid References • Copy out the grid • Name each column and row • Name each of the squares • E.g. 1=5346 Grid references 48 47 46 45 44 43 42 51 52 53 54 55 56 57 Square name 1 2 3 4 5 6 7 8 9 10 .3 .9 .1 .10 .7 .6 .8 .2 .5 .4

5. Grid References • To be more accurate we need to estimate the position of a place within each square. • This gives a six figure reference • The filled in point will be 815327 9 8 7 6 5 4 3 2 1 0 32 0 1 2 3 4 5 6 7 8 9 81

6. Grid References • Copy out the grid • Name each column and row • Name each of the points • E.g. 1=834364 Grid references 38 37 36 35 34 33 32 81 82 83 84 85 86 87 .3 .9 .1 .10 .7 .6 .8 .2 .5 .4