Getting to Grips with Grid References Learning Objective

Getting to Grips with Grid References!

Learning Objective To understand how to use four-figure and six-figure grid references. Success Criteria • To understand the purpose of grid references. • To use four-figure and six-figure grid references to locate features on a map. • To apply the use of four-figure and six-figure grid references to an OS map.

OS Map Symbols 1 viewpoint 2 viewpoint coastguard 3 viewpoint picnic site 4 viewpoint golf course 5 viewpoint parking 6 viewpoint bus/coach station

OS Map Symbols 7 viewpoint campsite 8 viewpoint information centre 9 viewpoint public house 10 viewpoint windmill 11 viewpoint place of worship 12 viewpoint telephone

What Are Four-Figure Grid References? 80 Four-figure grid references are used to locate a particular grid square on a map. 79 Why might this be useful? To create a four-figure grid reference you use the grid lines and grid numbers. 78 77 01 02 03 04 © Crown copyright and database rights 2018 Geographical Association and Twinkl Education Publishing under licensed agreement with OS

What Are Four-Figure Grid References? 80 The horizontal gridlines are called northings and they increase as you move northwards. 79 The vertical gridlines are called eastings and they increase as you move eastwards. 78 77 01 02 03 04 © Crown copyright and database rights 2018 Geographical Association and Twinkl Education Publishing under licensed agreement with OS

What Are Four-Figure Grid References? 27 How to find a grid square. If the grid reference is: 3226 The second two numbers give the northings. Locate the point where the easting and northing grid lines meet. This is the bottom Left-hand corner of grid square 3226… …the campsite. 25 24 northings The first two numbers give the eastings. L 26 23 22 31 32 33 34 35 36 eastings viewpointeastings Remember…. thentelephone northings! camp site Along the corridor and picnic site golf course church up the stairs!

What Are Four-Figure Grid References? 27 Your Turn! 26 a. 1 What OS map symbol is found in each of these grid squares? b. 3124 viewpoint c. 3323 picnic site 22. What is the grid reference for the: a. church? 3524 b. telephone? 3122 24 northings a. 3526 golf course 25 23 22 31 32 33 34 35 eastings viewpoint telephone camp site picnic site golf course church 36

What Are Six-Figure Grid References? 80 Four-figure grid references are used to find a grid square… …but we can use six-figure grid references to find an exact location within a grid square, so they are much more accurate than four-figure grid references! 79 78 Let’s look at grid square 0179 in more detail… 77 01 02 03 04 © Crown copyright and database rights 2018 Geographical Association and Twinkl Education Publishing under licensed agreement with OS

What Are Six-Figure Grid References? 80 The grid square is divided into tenths. 9 Example: 8 015795 7 6 5 4 The first three numbers give the easting which includes the number of tenths. 3 2 1 79 01 1 2 3 4 5 6 7 8 9 The last three numbers give the northing which includes the number of tenths. 02 Find the point where the easting and northing grid lines meet to find your grid reference point. © Crown copyright and database rights 2018 Geographical Association and Twinkl Education Publishing under licensed agreement with OS

What Are Six-Figure Grid References? 80 What is the six-figure grid reference of the star? 9 8 7 If a symbol is exactly on a grid line, this means 0 tenths along or up. You must write the 0 in the grid reference! 6 5 4 e. g. The star is: 3 015790 2 1 79 01 1 2 3 4 5 6 7 8 9 02 © Crown copyright and database rights 2018 Geographical Association and Twinkl Education Publishing under licensed agreement with OS

What Are Six-Figure Grid References? 80 Your Turn! 9 8 a. 1 What OS map symbol is found at: 7 6 a. 015793 railway station 5 b. 018798 campsite 4 22. What is the six-figure grid reference for: a. the school? 014791 3 2 Sch 1 79 01 1 2 campsite railway station 3 4 5 church 6 7 8 9 02 b. the church? 017791 c. the woodland? 013798 woodland Sch school © Crown copyright and database rights 2018 Geographical Association and Twinkl Education Publishing under licensed agreement with OS

What Are Six-Figure Grid References? 80 Important! On a map, the grid squares do not have the tenths marked on them… so you have to use a ruler to help you or carefully estimate where the tenths are! 79 01 02

Figure It Out: Swanage Complete the Swanage Map Activity Sheet.

Feeling Maptastic? Success Criteria • To understand the purpose of grid references. • To use four-figure grid references to locate features on a map. • To use six-figure grid references to locate features on a map. 19 18 17 • To apply the use of four-figure and six-figure grid references to 16 an OS map. 28 29 30 31