DeSTRESS Film 4: Percentages
Percentages: Books, Wastewater, Chickens and Elections (14'37")
This film shows how percentages are useful in a succession of situations: designing a robust wastewater treatment plant, working out the value of discounts in a book shop, voting margins in an election and rating the return on investment on machinery in a chicken processing plant.
Watch on YouTube | Download (643 MB)
Interviewees:
- Kurt Keilback: Water Quality Analyst, City of Boulder WWTP
The DeSTRESS films are presented by Ken Heather of the University of Portsmouth and produced by StreamLearn LLC. Published online in 2011
Related questions
- MathsEG: Percentages
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DeSTRESS was funded by the Higher Education Academy/ JISC Open Educational Resource programme.
