1. Putting things in perspective Adrian Oldknow a_oldknow@compuserve.com 9 th December 2004

2. Where’s this bridge?

3. Get the point?

4. Been there, done that – got the photograph

5. Is it a circle?

6. Is this a circle?

7. It all depends where you stand

8. A cone-slicing machine

9. How to draw an ellipse?

10. Just need a little light to see by

11. Cabri II Plus knows it’s a hyperbola

12. Cabri 3D draws a 5 point conic

13. Ellipse as a locus

14. 5-point ellipse with focus F, near point P and far point Q.

15. Worth it? Planets or electrons?

16. Geometry 11-19 The RS/JMC report The curriculum - no conics anywhere! Circles at KS3, KS4, AS, A2 Locus at KS3/4 in Ma3 OK to do parabola, ellipse, hyperbola But not statutory Even though they’re all around

17. From the RS/JMC report Recommendation 8: We recommend that the geometry curriculum be developed to give greater emphasis to work in 3- dimensions and to make better use of Information and Communication Technology (ICT).

18. So perspective could be another linking theme, and bring in Art, too. Resources: ICT, models, books, videos.. Technical know-how: –Subjects – school/LEA –Cabri 3D – Adrian + developers –ICT tools – school/LEA/Adrian