line graphs SBHS

1. Skills in Social
Studies
The Line Graph

2. Key Features of a Line Graph
A Line Graph should have the same key
points to it as a Bar Graph:
• A Title
• Both axis ruled
• Clearly labelled unit of measurement on
both axis
• Equal spacing on both axis
• Numbers increasing at regular intervals

3. Key Features of a Line Graph
A Line Graph should have the same key
points to it as a Bar Graph:
• The only main difference is that the
horizontal labels should be on the point
instead of in between the points

4. Identify what is wrong with this
Line Graph
1. No Title
2. No Labels
3. Vertical Axis too high
400
360
0
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80
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240
280
320
J F M A M J AJ S O N D

5. Identify what is wrong with this
Line Graph
1. No Labels
2. Vertical numbering
not even
400
375
0
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80
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200
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240
310
315
J F M A M J AJ S O N D
Rainfall for Hong Kong

6. Identify what is wrong with this
Line Graph
1. No Title
2. No Vertical label
3. Vertical axis spacing
uneven
F M A M J AJ S O N D
400
360
0
40
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320
Months
J

7. Identify what is wrong with this
Line Graph
1. Horizontal spacing not even
2. No Horizontal Label
3. Vertical axis is too big
Rainfall for Kenya
400
360
0
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Rainfall(mm)
DFJ M A M J SAJ O N

8. Line Graph of Temperature of
Lake Tekapo
Temperature of Lake Tekapo
9 lines down your page
11cms across your page
Temperature(°C)
Months
Month Temp
Jan 15 °C
Feb 13 °C
Mar 12 °C
Apr 9 °C
May 5 °C
June 2 °C
July 1 °C
Aug 3 °C
Sep 6 °C
Oct 8 °C
Nov 11 °C
Dec 13 °C
18
0
2
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12
14
16
J F M A M J AJ S O N D

9. Create your own Line Graph
• Use these figures to create your
own line graph.
• Remember the Key Features of a
Line Graph.
• Hint: Decide on vertical axis
spacing now.
• Be careful when plotting the
years as not all the figures are in
10 year intervals.
• Complete graph and then put
your hand up so I can check your
graph.
Year Maori Popn in NZ
1901 45,000
1911 52,000
1921 56,000
1936 82,000
1951 115,000
1961 167,000
1971 227,000
1976 257,000
1981 280,000

10. Maori Population in New Zealand
Years (1900s)
Maori Population in New Zealand
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0
30
60
90
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210
240
01 21 4131 51 61 8171
300
11
Population(000s)

11. Maori Population in New Zealand
• Now you have completed your graph I
want you to write 2-3 sentences describing
what your graph is showing.
• e.g. The above line graph is showing . . .

12. Maori Population in New Zealand
• Now answer these questions about your
completed graph.
• Between which 10 year period was the
biggest increase in population?
• Between which 10 year period was the
lowest increase in population? 1911-1921
1971-1981

13. THE END

14. Key Features of a Line Graph
DNOSJ AJMAMFJ