Course Home Page

1. Week 1 - Jan 7-11

2. Week 2 - Jan 14-18

3. Week 3 - Jan 21-25

4. Week 4 - Jan 28 - Feb 1

5. Week 5 - Feb 4 - 8

6. Week 6 - Feb 11 - 15

7. Week 7 - Feb 18 - 22

8. Week 8 - Feb 25 - Mar 1

9. Week 9 - Mar 4 - 8

10. Week 10 - Mar 11 - 15

11. Exam Week Mar 18 - 22

Monday 2/25

• Areas of Spherical Triangles
• Areas of Spheres and the number Pi

Assignment 2/25 Due

• Answer to Question 1 on Assignment is given by interactive web page.

Assignment Due 2/27

• Questions on Handout on Spherical Triangle Area

Wednesday 2/27

Class

• Constructing a point D from collinear A, B, C, using a straightedge alone. This party trick turns out to construct D so that CD divides AB harmonically. It is written up in Ogilvy on pp. 101-104 as the complete quadrangle.
• Introduction to cross-ratio worksheet and answer sheet. Read Ogilvy, pp. 39-41 and Chapter 7, pp.  97-101.

Lab -

• Origami Geometry Presentation
• Lab 8. Experiences with Ruler Geometry

Friday 3/1