1. Objective: To be able to draw bar charts

2. I collected the results in a TALLY CHART.
The data
Last night I stood on Fulwood road for 5 mins and counted the different types of transport that passed me.
I collected the results in a TALLY CHART.
Type of transport
Tally
frequency
Car
Bus
Motor bike
Bike
other 18 5 2 3 5

3. From this data I can draw a BAR CHART
Type of transport
Frequency
Car 18
Bus 5
Motor bike 2
Bike 3
Other
From this data I can draw a BAR CHART
You need to add a title and label the axis

4. From this data I can draw a BAR CHART
Type of transport
Frequency
Car 18
Bus 5
Motor bike 2
Bike 3
Other

5. From this data I can draw a BAR CHART
Type of transport
Frequency
Car 18
Bus 5
Motor bike 2
Bike 3
Other

6. From this data I can draw a BAR CHART
Type of transport
Frequency
Car 18
Bus 5
Motor bike 2
Bike 3
Other

7. From this data I can draw a BAR CHART
Type of transport
Frequency
Car 18
Bus 5
Motor bike 2
Bike 3
Other

8. From this data I can draw a BAR CHART
Type of transport
Frequency
Car 18
Bus 5
Motor bike 2
Bike 3
Other

9. From this data I can draw a BAR CHART
Type of transport
Frequency
Car 18
Bus 5
Motor bike 2
Bike 3
Other

10. Construct bar chart questions
Q1 A survey of how 30 pupils got to school
Q2 How Cameroon spent his £40 birthday money
Q3 Who is your favourite Telly-Tubby survey.
Method
Walk
Cycle
Car
Bus
Frequency 15 5 7 3
How
Games
Clothes
Books
Cinema
Amount £6
£19 £9
Telly-Tubby
Tinky-Winky
Dipsy
La-La Po
Frequency 12 20 18 40

11. Pie Charts
Be able to construct a pie chart from a collection of data, using a protractor.

12. Makes of car in a school car park
Toyota
Ford
Citroën
Volvo
Frequency 3 2 4 1
Construct a pie chart to show this information.
A full circle is 360o
There are a total of = 10 cars
We use 36o to represent each car
360o

13. Makes of car in a school car park
Toyota
Ford
Citroën
Volvo
Frequency 3 2 4 1
Angle in pie chart
3x36o =108o
2x36o =72o
4x36o =144o
1x36o =36o
We use 36o to represent each car so the 3 Toyotas are represented by 3x36o = 108o
Work out the angle needed for each of the other models of car

14. Makes of car in a school car park
Toyota
Ford
Citroën
Volvo
Angle
108o
72o
144o
36o
Mark the centre of the pie and draw the circle.
Draw a line from the centre to the edge
Measure the first angle needed (108o)
Draw in the line and label the section
Toyota
108o

15. Makes of car in a school car park
Toyota
Ford
Citroën
Volvo
Angle
108o
72o
144o
36o
From this line measure the next angle, draw the line and label the section.
Continue in this way
Check that the last section has the correct angle and label it.
Volvo
Toyota
Citroën
Ford

16. Why? Why do we use 36o to represent 1 car?
What would happen if there were 20 cars?
What about 60 cars? Or 15 cars?
If there were 20 cars in your survey, what angle would you use to represent 4 cars? 7 cars? 12 cars?

17. Construct Pie charts questions
Q1 A survey of how 30 pupils got to school
Q2 How Cameroon spent his £40 birthday money
Q3 Who is your favourite Telly-Tubby survey.
Method
Walk
Cycle
Car
Bus
Frequency 15 5 7 3
How
Games
Clothes
Books
Cinema
Amount £6
£19 £9
Telly-Tubby
Tinky-Winky
Dipsy
La-La Po
Frequency 12 20 18 40