easypeasy p1-3

8/3/2019 easypeasy p1-3

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Map readingmade easy



1. What is a map?

A map s smpy a drawng or pcture (n 2-D)of a andscape or area of a country (n 3-D).It coud be anythng from a sketch map for avstor to ind your schoo toa detaed map of a towncentre or mountan

range.

Usng a map you canvsuase n your mndwhat the pace ooks kethat you are gong to,and you can see whatandmarks and features

you w pass on the wayto your destnaton. Mapsmean you know what toexpect, and they hepyou to know you aregong n the rght drecton to arrve at yourdestnaton safey and qucky.

Sketch map of a school

1:25 000 scale extract showing part of London

1:25 000 scale extract showing Snowdon, the highestmountain in Wales

Why not try drawng your own mapto show a frend the route from yourhouse to schoo, showng budngs andandmarks you pass on the way?

Have a ook at a 1:25 000 scae map togve you some deas of what you couddraw f you are sghty unsure.

2. What are all the differentsymbols?

When drawng a map,you w ind that youhave to abe ots ofthngs you draw, such

as a shop or achurch, so

otherpeopecan te

what they are.If Ordnance Surveyhad to do ths on amaps there wouldbe too muchwrtng and t woudbe very confusng.

The way we getaround ths

probem s by usng dfferent shapes, cooursand symbos to show a the roads, budngsand rvers and other nterestng thngs n our

andscape. Maps may even show you thngsyou never even knew were there!

Maps usuay have a key that expans thesymbos and ther meanngs. If you ind asymbo on the map that you don’t know,smpy ook t up n the key.



2a. Have a ook at the key on a 1:25 000scae map and see f you can ind outwhat these symbos mean.

A B C D E

2b. You can nvent your own symbols forthngs on your own sketch map. Here aretwo deas; can you guess what they are?

A B

Get your frends and famly to test you onhow well you know the symbols. If youcan learn them, then map readng s easy.

3. Which direction am I going?

Just as t s mportant to know whch syour eft and your rght hand, n mapreadng t s mportantto understand wherenorth, east, southand west are. Youcan remember wherethe ponts of thecompass are by usng

one of these rhymes:

Naughty Eephants Squrt Water

or

Nobody Ever Swaows Whaes

If you are wakng n a drecton haf waybetween two of the ponts of a compass, youcan say you are headng north-east,south-east, south-west or north-west,dependng on the drecton.

Ordnance Survey maps are always prntedso that north s at the top of the sheet.

Usng the 1:25 000 scae BembrdgeExporer® extract on ths ealet can youanswer these questons?

3a. Whch genera drecton are you headngf you are wakng from pont 1 to pont 2?

3b. Whch genera drecton are you headngf you are wakng from pont 2 to pont 3?

3c. Whch genera drecton are you headng

f you are wakng from pont 3 to pont 1?

4. How do grid references helpme to find places?

You mght have notced by now that a 1:25 000 scale Ordnance Survey map s covered n aseres of blue grd lnes. These grd lnes helpyou to pnpont an exact locaton anywhere onthe map by gvng a unque number known asa grd reference. The vertcal lnes are calledeastngs, snce they ncrease n value as youtravel east on the map. The horzontal lnesare called northngs, snce they ncrease nvalue as you travel north on the map.

Four-figure grid references

A four-igure grd reference s a handy way ofdentfyng any square on a map. Grd referencesare easy f you can remember that you alwayshave to go along the corrdor before you go upthe stars. To ind the number of a square irstuse the eastngs to go along the corrdor untl

you come to the bottom left-hand corner of thesquare you want. Wrte ths two-igure numberdown. Then use the northng to go up the starsuntl you ind the same corner. Put ths two-igurenumber after your irst one and you now have thefour-igure grd reference, whch looks lke ths:

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easypeasy p1-3

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