energy around/in us
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Energy around/in us. Let’s make science teaching better…. Ludányi Lajos. Does Chemistry & Physics have a future?. Why don’t students like these subjects? „We wrote many C and H letters. I have never known what these mean in the real world…” - PowerPoint PPT PresentationTRANSCRIPT
Energy around/in us
Let’s make science teaching better…
Ludányi Lajos
Does Chemistry & Physics have a future?
My favourite subject
0
5
10
15
age 14 age 15 age 16 age 17 age 18
percent of student
Maths
Biology
Physics
Chemistry
Why don’t students like these subjects?
„We wrote many C and H letters. I have never known what these mean in the real world…”
„I can recite the second law of Newton, but I can’t imagine where I can use…”
„I couldn’t make contact between theories of science and my own world, and my own experience”
Conclusion:
Can’t see the koherncy between science subjects.
Miss the reference to his/her earlier science knowledge among science subjects.
We have a false idea about students’ prerequisite knowledge
Our teaching method is academically, absolutly not learnerfriend
Where are we from?
Age Physics Chemistry Biology
12 1
13 2 2 2
14 2 2 2
15 2 2 2
16 2 2 2
17 2 2 2
18 2
blue: compulsory lesson red: facultative
Coordination between Curriculum of Science Disciplinary Age 16
Physics Chemistry Biology Geography
…
Vaporization
Boiling
…
Physical properties of alkanes
.
.
Destillation of crude oil
How was formed the crude oil
Heat and work
Carnot engine Fuel and engine
The business and economics of oil
Otto engine Biofuels Foods as fuels
Energy relase and energy storage in
cells
Energy usage through the agesPurpose of
energy usagePrimitive
societyHunting society
Early agricultural
society
Advanced agricultural
society
Industrial society
Technological society
food 8 13 16 26 30 42Home and commerce
- 8 17 50 134 277
Industry and
agriculture
- - 17 29 101 382
transport - - - 4 59 265total 8 21 50 109 324 966
Evaporation and boiling
evaporation and coolingHygrometer of Leonardo difference between
evaporation and boiling
what is in the bubble?
boiling at Himalaya
pressure cookerand room
temperature
Condensation and distillation
How was the crude oil and the coal formed
Politics and oil
Iraq invaded Kuwait
Arab-Israeli War
•II.W.W Germany’s for Caucasus’ oil
•Pearl Harbour partly result of American oil embargo
•Yom Kippur War
•Gulf War
•Iraq
Heat engine2nd law of thermodinamics
How works the heat engine„Home made” Carnot
engine
How works a ‘real’ heat engine?
Refrigerator
ATP – like a rechargeable battery
Food as our fuel
1 = ?