what is a map? a drawing or picture (in 2-d) of a landscape or area of a country 3-d maps: google...
TRANSCRIPT
What is a map?
•A drawing or picture (in 2-D) of a landscape or area of a country •3-D maps: google earth, streetmap etc• It could be anything from a sketched map for a visitor to find your school, to a detailed map of a town centre or mountain range.
Why use maps?
• To get from A-B
•To visualise what a place looks like and to see what landmarks and features there are
• To help you know what to expect, and know you are going in the right direction
•To understand where places are in relation to each other
Ordnance Survey maps are always printed so that north is at the top of the sheet.
How is the view from above (Aerial view) different from what we actually see?
LO: I can explain and use an aerial view
Ordnance Survey map are covered in a series of blue grid lines. These grid lines help you to pinpoint an exact location anywhere on the map by giving a number known as a grid reference.
The vertical lines are called eastings, since they increase in value as you travel east on the map.
The horizontal lines are called northings, since they increase in value as you travel north on the map
Ordnance Survey map are covered in a series of blue grid lines. These grid lines help you to pinpoint an exact location anywhere on the map by giving a number known as a grid reference.
The vertical lines are called eastings, since they increase in value as you travel east on the map.
The horizontal lines are called northings, since they increase in value as you travel north on the map
What is the 4-figure grid reference of the hat?
1st
2nd
Flower = 01 62
LO: I can use 4-figure grid references KS1
The 6-figure grid reference of the church with a spire is 253 762.
3
2
1st
2nd
LO: I can use 6-figure grid references KS2
Divide the square into 10 equal intervals to help you work out the 6 figure GR
What is scale?
•Scale is what makes map drawing possible. It takes real life things and•reduces them in size many times so they can be shown on a map
•The scale of a map shows how much you would have to enlarge your map to get the actual size of the piece of land you are looking at.
•Ordnance Survey maps have been designed to make understanding scale easy. The scale has been written out for you like this: 4 cm to 1 km
•This means that every 4 cm on a map = 1 km in real life. •To make it easier, the grid lines are exactly 4 cm apart, so every square is 1 km by 1 km.
Here are 3 views of the same location on maps with different scales:
Here are 3 views of the same location on maps with different scales:
How are hills and mountains shown on a map?
The ability to understand the shape of the ground from a map is a useful skill to learn, particularly in mountainous landscapes. The height and shape of the ground is shown on 1:25 000 scale maps by brown contour lines. A contour is a line drawn on a map that joins points of equal height above sea level.
For a 1:25 000 scale map the interval between contours is usually 5 metres, although in mountainous regions it may well be 10 metres.
This diagram shows the link between theshape of a hill and the contours representing it
Count the contours from the outside and work inwards (to find to the height of the mountain)