1. Blurring the boundaries between science and mathematics Autumn 2009

2. Aims of the session To demonstrate the interconnectedness of mathematics and science To begin to explore a resource rich in learning opportunities for science, mathematics and citizenship sessions To learn something ourselves

6. What skills do science and mathematics have in common? Both require the ability to Read Communicate Reason Calculate Interpret Problem solve

7. Our topic for this session is… energy…. In particular, getting to grips with our use of energy.

8. Credits All subsequent material is drawn from “Sustainable energy – without the hot air” by David Mackay, downloadable as an e- book from http://www.withouthotair.com/

9. Professor Mackay sets the scene (Insert video hotlink if desired) http://www2.warwick.ac.uk/newsandeve nts/audio/http://www2.warwick.ac.uk/newsandeve nts/audio/

10. Energy.. Is consumed by Cars Jet flights Heating and cooling Making stuff Gadgets Can be generated by Wind Solar heating Photovoltaic panels Tide Biomass

11. So…… Q. How can we make sense of all this? A. By using numbers

12. Choosing a unit For ease of comparability we will use 1 kWh per day as our basic unit. This is the energy that would be used by a 40W bulb if switched on for 1 day.

13. Looking at some energy consumption data (in kWh per day) Stuff (48) Cars (40) Heating and cooling (37) Jet flights (30) Gadgets (5) UK total per person (125)

14. Finally We do not inherit the earth from our ancestors, we borrow it from our children. Native American proverb