map skills package 2017
TRANSCRIPT
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Sec 1 / 2
Express & Normal Academic
Stream
CBSS Humanities – Constantly Adding Value to Everyone
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1.Grid references
2.Bearings
3.Scale and Distance
4.Keys and Legends
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Integral to the learning of
Geography
Gives perspective
Identifies location
Provides sense of space
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Contour lines –
lines that show
elevation in height
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Gridlines – lines
that segment the
topographical map
into parts
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Eastings – gridlines
that increase as
they move East!
10 11 12 13 14
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Northings –
gridlines that
increase as they
move North!
10 11 12 13 14
23
24
25
26
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Unique number combinations (4/6
digit) that identifies locations
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4 DIGIT GRID REFERENCE 6 DIGIT GRID REFERENCE
Refers to a grid
square
Gives general
area
Non-specific
Like your block
number.
Refers to a point
on the map
Gives specific
place
Like your house
unit number.
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Read the Eastings first
Match the point with the
intersecting Northing.
Square on the top-right of the
location.
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4 Digit grid reference(1224)
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Divide the Grid square into 10
equal parts.
Each marking provides the 3rd
reference point.
Eastings first, Northings next.
Specific point located.
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6 Digit grid reference(125245)
What’s the6 digit
ReferenceOf Y?
X
Y
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The Angle of one location from another on the map
Provides accurate directional informationMore accurate than Cardinal Directions
(North / South / East / West)
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Measurement of angle of one
location from another location.
Needs a protractor
Need a Ruler
Set Squares (optional)
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X
Y
N
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X
Y
N
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X
Y
N
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X
Y
N
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X
Y
N
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X from Y
Y from X
H from S
S from H
X
Y
H
S
N
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Converting distance on the map
into real life distances
Measuring the different types of
distances on a map.
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Straight line distance• Distance between 2 locations.
• Joined in a straight line.
• Regardless of landforms in between.
Road / Actual distance• Distance between 2 locations.
• Measured along major transport routes
Roads / Rivers / Railway tracks / etc.
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Visual representation of scale
If no ratio scale is provided, measure with
a ruler and convert into ratio form
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Measure to find out how
many units (cm)
represents 1 unit (km) on
the map!
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Measure : Map
4cm : 1km
4 cm : 1000m
4 cm : 100 000 cm
1cm : 25 000cm
Ratio is:
1 : 25 000
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16.2cmAnswers to be in km.
To 2 decimal places unless
otherwise stated.
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• Connect the
locations with a
line
• Ignore the
landforms between
• Measure the
length of the line
• Convert into actual
distance
• Answer in km
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6.8cm
Scale 1 : 15 0006.8cm = 6.8 x 15 000
= 102 000cm
= 1020m
= 1.02km
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Start and Stop at
the point nearest
to the landform
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Using a string,
measure the distance.
Keep as close to the
actual track as
possible.
Mark the end of the
track.
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Making sense of the symbols on a
map
Understanding and seeing
relationships
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Can be images
Can be symbols
Can be letters/ abbreviations