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

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?

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?

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

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!

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?

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

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.

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.

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

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

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?

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!

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

Brainstorm key features of a persuasive text

Brainstorm appropriate language and phrases