1. LEARNING OBJECTIVE: Use real life statistics as a persuasive device
PLASTIC PERSUASION
LEARNING OBJECTIVE:
Use real life statistics as a persuasive device

2. THE DIRTY DOZEN
Almost a decade ago, Surfers Against Sewage conducted a Plastic Pollution Brand Survey; a brand audit that revealed that the majority of all beach litter (56%) was attributable to just twelve corporations, dubbed the ‘Dirty Dozen’.
Talk in pairs, remember to prepare reasons for your answers.
What might Surfers Against Sewage’s motive be for doing this survey?
Can you suggest who the top culprits may be?
How useful is this data now?

3. The Dirty Dozen Data No. of items Corporation
Nestle 51
Coca Cola 49
Walkers/Frito Lays 47
Kraft 45
Tesco 34
Mars 22
Unilever 19
PepsiCo 16
United Biscuits 15
Carlsberg 13
Co-op 10
Asda 9
Corporation
In your pairs, choose three of the following questions to discuss.
If the litter pick had been repeated the following week would the data be the same or different? Why?
Is the data reliable? Why?
What story does the data tell us?
How can this
data be updated?
How many items of litter were collected in total?
What is the range of this data set?

4. QUESTION: If the survery was repeated today would the Dirty Dozen remain the same? WHY?

5. Plastic Pollution Brand Survey
YOUR MISSION:
Surfers Against Sewage are inviting you to conduct your very own
Plastic Pollution Brand Survey
‘Wherever you are, and whether it’s a mountain or a river, in the city or by the sea, you can play a part. Let’s make the polluter pay!’
Find the new ‘Dirty Dozen!’
Arm yourself with statistics!
Lead the change with some plastic persuasion!

6. Plan the pick! As a class, plan how you will collect your data.
Where/when will you conduct your survey?
For what duration?
How will you record your findings?
Will you do it more than once to observe differences?
Why are you gathering this data? What purpose will it serve?

7. Data Collection: Tally Chart
A tally chart to show the frequency of plastic litter found for each brand
Item of plastic
Brand
Tally
Frequency
Bottle
Revian 2
Wrapper
Frankies 5
Example tally chart

8. Data Collection: Tally Chart
A tally chart to show the TOTAL frequency of plastic litter found for each brand
Item of plastic
Brand
Tally
Frequency
Collate class results. Of course, you may have collected items from more than 12 brands. Decide together if you will record or dismiss this data.

9. Data Collection: Pie Chart
Brand
No. of items (frequency)
Angle
(rounded to nearest whole number)
Nestle 51
56˚
Coca Cola 49
53˚
Walkers/Frito Lays 47
Kraft 45
Tesco 34
Mars 22
Unilever 19
PepsiCo 16
United Biscuits 15
Carlsberg 13
Co-op 10
Asda 9
To draw a pie chart for the Dirty Dozen data
Find total frequency = 330
Find proportion of total items for each
brand
Nestle
51 ÷ 330 x 360˚= 55.6˚
Coca Cola
49 ÷ 330 x 360˚ = 53.4˚
Choose a brand, tell your partner how you would calculate the proportion of the pie chart to allocate it.

10. Data Collection: Pie Chart
A pie chart to show the frequency of
plastic litter found for each brand: The Dirty Dozen
Use one of the following phrases to
make a statement about the data depicted.
proportion
approximately
most common
least common

11. Using the data collected in your brand survey, draw a pie chart.
Our success criteria
Success criteria could include, for example:
Include a clear title
Use a key to explain segments
Be accurate to the nearest degree

12. QUESTION: Did the Dirty Dozen remain the same
QUESTION: Did the Dirty Dozen remain the same? Are there any similarities? What are the key differences? What is the biggest surprise?

13. Plastic Pollution Brand Survey
YOUR MISSION:
Surfers Against Sewage are inviting you to conduct your very own
Plastic Pollution Brand Survey
‘Wherever you are, and whether it’s a mountain or a river, in the city or by the sea, you can play a part. Let’s make the polluter pay!’
Find the new ‘Dirty Dozen!’
Arm yourself with statistics!
Lead the change with some plastic persuasion!

14. CHALLENGE: Numbers are power
CHALLENGE: Numbers are power. Use them to PERSUADE a brand to make a change.

15. Brainstorm key features of a persuasive text

17. Brainstorm appropriate language and phrases