energy around/in us let’s make science teaching better… ludányi lajos

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 = ?