Informal Assignments:
  1.  Viewing Tubes
  2.  Computer Lab 1
  3. Neutral Geometry Worksheets
  4. Postulate checking on the sphere:  Which of Euclid's five postulates, and which of the axioms 1-4' from the worksheets, are true on the sphere?
  5. Henderson Problem 7.1
  6. Postulate checking on the 450 degree cone:  Which of Euclid's five postulates, and which of the axioms 1-4' from the worksheets, are true on the 450 degree cone?
  7.  Computer Lab 2
  8. NCTM standards
  9. Shape of Space