Transcript Introduction to Maps

Maps and how to read them!
L/O: 1. To understand why maps are useful and how
they should be created!
2. To use ordnance survey map symbols
3. To use compass points and grid references
What are maps?
A map is a 2 dimensional drawing or picture of an area.
Maps can vary from a simple sketch to a complex
Ordnance Survey map.
Why are maps useful?
Maps can help you plan your route. You are more likely to
arrive at your destination quickly and safely if you use a map.
They can also help you visualize what a place looks like and
so you will know what to expect when you get there.
Map rules
A map always needs a:
Title
Scale
Compass Point
Key
What is missing from this map?
Map projections
The Earth is round and three-dimensional.
As we flatten the globe onto a piece of paper (a projection) we slightly change
the shape of the countries and/or the size of the countries.
Where do we use symbols?
Why do we use symbols?
When drawing a map to scale, it is important to
include as much detail as possible.
However, not all the detail will fit on the map, so we use
different images, abbreviations and letters to represent
the main items on the map.
Why do we use symbols?
What are O.S. symbols?
What can we learn from place names?
What are 4 figure and 6 figure grid references?
O.S. map symbols
Objective: To use ordnance survey map symbols
Match the O.S. symbol to the correct description
1
2
coniferous forest
bus station 7
3
4
deciduous forest 3
picnic site
5
camp site 1
view point 5
6
marsh 4
church with a tower
secondary road
7
train station 8
8
main road 6
church with a spire 2
Objective: To use ordnance survey map symbols
O.S. map symbols
Identify all the symbols you can spot on this
Ordnance Survey map.
Hint - There
are 11
different
symbols to
identify!
Objective: To use ordnance survey map symbols
O.S. map symbols
Identify all the symbols you can spot on this
Ordnance Survey map.
Hint - There
are 11
different
symbols to
identify!
Objective: To use ordnance survey map symbols
Did you spot them all?
contour line
minor road
river
buildings
pond
telephone
public house
main road
chapel
footpath
church with a tower
Objective: To use ordnance survey map symbols
Compass rose
NOW MAKE UP YOUR
OWN WAY TO
REMEMBER THIS!
How can we remember the points of the compass?
‘Never eat shredded wheat!’
Objective: To use compass points and grid references 14
Grid references
Geographers use maps constantly but
sometimes they can seem a little confusing.
Maps are often covered by a grid.
This is so we can
find places more
easily. These
grids have numbers.
01 02
03
04 05
06
07 08
09
10
11
Objective: To use compass points and grid references 15
Eastings and northings
Specific areas on maps can be identified using a
grid reference. These come in the form of numbers,
for example 0431. To find this place on a map is simple:
The second two digit
number is called the
northing. This is the
number at the side of
the map.
The first two digit number is
called the easting, this is
the number along the
top or bottom of the map.
01 02
03
04 05
06
07 08
09
10
Objective: To use compass points and grid references 16
11
Finding a grid reference
To find the number 0431, first place your finger on the 04 line.
Draw your
fingers together
along the lines.
Place a
second
finger on the
31 line.
01 02
03
04 05
06
07 08
09
10
11
The square you
are looking for is
to the
north-east
of where the
lines cross.
Objective: To use compass points and grid references 17
Using this map
complete these tasks
in your book:
1. What is at grid
square 0162?
_________________
2. What is at grid
square 0262?
_________________
3. Give a four figure
grid reference for
the camping site.
_________________
4. Give a four figure
grid reference for
the person
_________________
5. Give a four figure
grid reference for
the mast
_________________
4-figure grid references
Do now task . . .
Discuss, what type of
map is this?
What can you see in?
What do the symbols
mean?
Exactly Where?
L/O: To be able to use 6 figure grid references
How did you do?
Give a four figure grid reference for:
1. Mickleham Hall
3245
2. Cowslip farm
3145
3. Nichols field
3044
4. Ext: What can be found in grid reference 32,44?
Fredley Manor
Six figure grid references
Sometimes geographers need to be more specific and will use sixfigure references, such as 045315.
Don’t panic. Click on
square 045315.
01 02
03
04 05
06
07 08
09
10
11
21
L/O: To be able to use 6 figure grid references
Finding a grid reference
You can then imagine that you can divide box 0431,
further into a ten by ten grid.
32
Use the same
rules for finding
eastings and
northings.
045315 will be
here.
22
L/O: To be able to use 6 figure grid references
What is the 6-figure grid reference of…
1. The site of the battle.
2. The bus station in
Naperton.
2. The church with a tower in
Bingham.
23
L/O: To be able to use 6 figure grid references
What is the 6-figure grid reference of…
1. The site of the battle.
705 342
2. The bus station in
Naperton.
692 332
2. The church with a tower in
Bingham.
680 321
24
L/O: To be able to use 6 figure grid references
Task
• Geog 1
• Page 14-15