FOCUS: Sketching, rigidity, 3D-geometry, estimation. GRID REFERENCE: ________ EQUIPMENT: Stopwatch, conversion table for speeds, calculator

This is the southern elevation of the .

1) In the space below, draw the eastern elevation.

2) Name all the geometrical shapes that appear in the structure of the

? ___________________

Which of these shapes gives rigidity to the structure?_________________________________

___________________________________________________________________________

3) Estimate the length of the track.__________________

4) Which category do you think best describes the speed of the ride?

a) fast jog b) pushbike racing speed c) suburban road speed d) open road speed

5) Time how long it takes for one car to complete a circuit? (Give your answer in

seconds)___________

6) Knowing that the length of the track is 330m, (shhhhh!!!! Don’t tell any of your friends who haven’t done question 3 yet!) calculate the average speed of the ride. _________________________________________________________________________

7) Using the conversion table for speeds, convert the answer for question 6 from metres per second to kilometers per hour. ________________________________________