Educating the sustainability...
Transcript of Educating the sustainability...
Ioannina, 14 June, 2012 Eindhoven University of Technology
Educating the sustainability generation
Kees HuizingElise Quant – Daniël de Wolf
Erasmus IP Light & Sustainability
Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
The sustainability generation
When you live in trees, waste is another one’s problem...
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
The sustainability generation
a child of the 21st century grows up knowing she is not only consumer but also producer
of waste, CO2, etc.
she is part of a technologically complex network
what is needed to operate as a responsible citizen in this network?
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
take responsibility
a generation grows up realizing that
your behaviour has consequences for the planet
what is responsible behaviour?
need to understand what the ecological impact of your actions is
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
21st century skills
collaborationcommunicationICT literacysocial and cultural competencies (including citizenship)creativitycritical thinkingproblem solving
Twente University research
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
skills for the sustainability generation
ICT literacy
science literacy
math literacy (numeracy)
citizenship
critical thinking
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Skills (ctd)
environmental issues are not black/white or moral things
they are about trade-offs like:
Living in Eindhoven, should I buy lettuce from Egypt (air transport) or from local farmer (greenhouse heating) ?
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Literacy
these trade-offs involve:
physics, chemistry, biology → science literacy
numbers → math literacy
information → ICT literacy
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Or not?
do we have to bother our children with all this?
forbid bad behaviour by law and publish simple advice?
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
the CFLEC has banned the incandescent bulb (not halogen)
in favour of the Compact Fluorescent Lamp (CFL)
Dutch journalist Karel Knip has estimated the effect
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Estimationa.80% is saved by a CFL compared to a bulb
b.20% of household electricity is for lighting
c.16% of electricity is for households
rest is factories, schools: hardly any incandescent bulbs
d.15% of primary energy is for electricity
(Dutch situation)
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
MAX SAVING
0.80 · 0.20 · 0.16 · 0.15 = 0.38 %
assume 80% can be replaced by CFLs
then saving is 0.3%. How much is this really?
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
MAX SAVING
0.3 % saving...
you save more energy when:
you go to work by car every day of the year and
you take the bicycle
one day a year
is this worth it?
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Critical thinking
Behaviour change only has ecological effect if many people change
manipulation is around the corner
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Drinking example
(Dutch news): Europeans are the heaviest drinkers of the world
12.5 liter of pure alcohol
that is almost 3 glasses of wine per day
That’s a lot! Hmm...
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
3 glasses of wine per day?12.5 liter per year = 12.5 / 365 * 1000 = 34 ml per day
what is the size of a wine glass?
125 ml is a normal wine glass; glasses are often larger than this (Dutch bars)
1 glass of wine contains 125 * 0.13 = 16.3 ml alcohol
that is 34 / 16.3 = 2.1 glass per day
beer: 300 * 0.05 = 15 ml alcohol → 2.3 beers per day
13% is a common
percentage
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Other example
Politician starts campaign against energy drinks for children
Radio interview
energy drinks are popular among children
contains lots of caffeine, taurine, sugar
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Group estimate
how much caffeine contains 1 (small) can of energy drink?
relative to a average cup of coffee e.g., ½ cup of coffee, 2 cups
think, do not google, do not talk
and write this number down
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Group estimate 2
how much sugar contains 1 (small) can of energy drink?
in lumps of sugar
think, talk with yor neighbour, don’t google
and write this number down
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
back to the story
radio interview with politician
she visited schools ans asked children to guess the amount of sugar in one glass of soft drink
answer she gave: 18 lumps of sugar
this is in a liter of coca cola...
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Discussion
Discuss in groups of four
Were these simple mistakes or intended?
What would you tell in class?
Does it depend on the age?
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Skills for critical thinkingon sustainability
(a.o.)
math (arithmetic)
estimating
measuring
collecting data
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Class activity
How many euro coins do you need to make a stack as high as the Eiffel Tower?
Do they fit in your classroom?
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Hints
Eiffel tower is 324 m
Euro coin is 23 x 2.3 mm
You don’t need the thickness for the second question!
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Eiffel calculation example
Eiffel tower is 324,000 mm high
1 coin is 2.3 mm thick
324,000 / 2.3 = 140870 coins
stack them in piles of 3 m high
324 / 3 = 108 piles = 9 · 12 piles = 20.7 cm x 27.6 cm
so the coins fit on a sheet of A4 paper!
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
and...
can you do it with the Mount Everest?
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Estimating
How many words are there in a good-sized novel?
How fast does human hair grow in km/h?
How many water melons fit in the Parthenon?
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Estimating
all kind of levels
number of bricks in school wall
number of bikes in the city
number of cars that pass your house in one day
the power of powers:
going to area or volume can be surprising
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Measuring etc.counting
light bulbs, cars in your street, lamps in the school
measure
consumption in your house of electricity, gas, water
observe your own behaviour
flights, car kilometers, television hours
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Other activities
ideas?
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Dimensions
when all people in the world join hands you get a chain that …
wraps around the world 250 times
when all people in the world stand together, they fill an area of…
Crete (actually, half of it)
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Dimensions
When all people in the world are stacked together…
you could fill up the Lake of Ioannina
and get a pile of 150 m above water level
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Every breath you takeWhat’s the chance that you inhale now one molecule of air that was exhaled by Socrates in his last breath?
Assume all Socrates’s breath molecules are still in the air
Long time ago, so all molecules are spread out evenly all through the atmosphere
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Calculation (1)
a: number of molecules in one in-/exhalation
n: number of molecules in the atmosphere
a/n: chance that an arbitrary molecule is exhaled by S
a/n is very small: 2.2 · 10-22
but...
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Calculation (2)
a/n: chance arbitrary molecule is an S-molecule
1-a/n: chance arbitrary molecule is not an S-molecule
Suppose you inhale 2 molecules chance that they are both not from S: (1-a/n)·(1-a/n) = (1-a/n)2
Suppose you inhale a molecules (same as S)chance that they are all not from S: (1-a/n)a
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
… << 0.01
so chance of inhaling at least one molecule of Socrates’s last breath is >> 1-0.01 =
calculation (3)
(1� a/n)a = (1� 2.2 · 10�22)2.2·1022
almost 1
very small very big
} } = . . .
99%
power wins…
chance of not inhaling
an S-molecule
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Gathering data
be critical
mistakes
lazy copy
own interests
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Group activity
Calculate the total energy consumption of this workshop
Energy consumed in form of electricity, gas, oil
Put your calculations in the provided spread sheet, add explanation
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Subcalculations1.international transport (IRL, NL, S)
2.international transport (P, I, CY)
3.local transport (GR)
4.activities (Going out, transport)
5.personal (food, shower, airco, telephone, hairdryer, ...)
6.lecture hall (light, beamer, airco, ...)
7.excursion39
Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Links
http://huizing.name
then click on Erasmus: energy footprint files and then Energy Footprint spreadsheet
collect in this room at 13:15
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Ioannina 14 June 2012 – Kees Huizing – Eindhoven University of Technology
Schedule
lecture part 1 11:00
break + discussion 11:45
break part 2 12:00
group assignment 30 min 12:45
collect + summerize 15 min 13:15
lunch 13:30
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