*Dec 16:*Grades are now available on eCampus. Note:- The regular homework score is multiplied by 80/315 to get the properly scaled score.
- Class participation scores are based on your team presentations and web postings, plus half a point for every day you signed the attendance sheet, plus extra points for various contributions that I was able to record, plus a 6-point bonus to bring the median up to something reasonable. (On the other hand, I did not deduct points from the term paper scores to bring that median down to something reasonable.) Failure to reach a perfect score should not be interpreted as a "deduction" for doing something wrong, but rather as a shortage of extra contributions. As with the papers, the threshold of perfection is infinite.
- To the course total I added 20 points, because the regular homework and final exam scores were not as high as I think they should be. So, add 20 to your course total and divide by 5.5 to get your average, which should match your letter grade.
- I hope to post test keys before Monday.

*Dec 2:*End-of-semester office hours:- On Monday,
**December 5**, I will try to be in my office 2:00-2:50 and 4:10-5:00 but can't promise I'll be there the whole time. (That's a Friday, after all!) - Tuesday,
**December 6**, there will be the usual office hour at 11:10 (even though it's a Thursday). - Thursday,
**December 8**, I plan to be there most of the afternoon (2-5).

- On Monday,
*Nov 18:*Office hours on Monday,**November 21**, will be at 2 and 4 (more precisely, 2:00-2:50 and 4:10-5:00).*Nov 14:*Next Math Club meeting,**Tuesday, Nov. 15**. poster.*Nov 11:*Office hours on Monday,**November 14**, will be at 2 and 4 (more precisely, 2:00-2:50 and 4:10-5:00).*Nov 4:*Office hours on Monday,**November 7**, will be at 2 and 4 (more precisely, 2:00-2:50 and 4:10-5:00). (The physics seminar at 3:00 involves projective geometry.)*Nov 1:***Change in policy regarding term papers:**In your second paper, please format the references exactly as prescribed by the MAA Reference Guide, paying particular attention to on-line items. Note that in this style, bibliography items are numbered and therefore should be cited in the text by numbers in brackets (such as "[3]"), not by, for example, author and year.*Oct 15:*- Office hours on Monday,
**October 17**, will be at 2 and 4 (more precisely, 2:00-2:50 and 4:10-5:00). - Midterm exam key is now visible at the proper spot below.

- Office hours on Monday,
*Oct 12:*Graded paper rough drafts will be returned Friday, Oct. 14. Revisions are due Monday,**October 24**.*Oct 7:*Office hours on Monday,**October 10**, will be at 2 and 4 (more precisely, 2:00-2:50 and 4:10-5:00).*Oct 5:*- In the next homework (due October 19) you need to "formulate" and prove a lemma as the W problem. Then you need to use the lemma in the next regular problem. Please copy your formulation (lemma statement) into the regular homework paper so the grader will know what you are trying to do there.
- A proof of Prop. 3.13 (this morning's exercise) is now linked below.

*Sep 30:*Office hours on Monday,**October 3**, will be at 2 and 4 (more precisely, 2:00-2:50 and 4:10-5:00).*Sep 24:*The revision of the first term paper will be due Friday,**October 21**. Somehow this information got lost from the syllabus handout. (A revised handout is now here.)*Sep 16:*- Somebody left a textbook (Greenberg) and unfinished homework paper in the classroom at 10:00 today. They are in the wall pouch next to my office door.
- I may be late for the office hour on Tuesday,
**September 20**.

*Sep 2:*Office hour news- The Monday hours will be 2:00-4:00, not 3:00-5:00 as previously announced. In certain weeks I may be elsewhere during the 3 o'clock hour and back during the 4 o'clock hour; I'll try to let you know well in advance.
- I may be late for the office hour on Tuesday,
**September 6**.

- Course handout (updated 24 Sep)
- Please see my home page for up-to-date office hours.
- Track your grades on eCampus
- Summary of axioms, definitions, and theorems ._. misprints
- Review exercises for Chapter 2 (a correction to the textbook)
- Policies about term papers (subject to change) ._._. Guidelines for authors ._._. MAA Reference Guide
- Help from ITS about how to put math content into a wiki, or attach a file to it.
- Information from University Writing Center
- Proof of Proposition 3.13
- Preview of midterm exam. (SIGNIFICANTLY UPDATED FROM PREVIOUS SEMESTERS)
- Preview of final exam.
- Excerpt from Halsted's report on Dehn's
models (G. B. Halsted, Science 14 (1901) 705-717).
The missing words at the beginning are
- Manning says, p. 27: "The three hypotheses give rise to three systems of geom-"

- Teams ._._. See Spring 2009's most enthusiastic team.

- Fall 2015
- Fall 2014
- Fall 2013
- Spring 2013
- Spring 2011
- Fall 2010
- Fall 2009
**(Homework solutions will be visible here after the due date.)** - Spring 2009 ._. Note that the point value of the final exam was larger that time.

[These links start out pointing to previous semesters' notes. They will be replaced as I make revisions.]

- Chapter 1 (updated)
- Chapter 2 (updated)
- Chapter 3 (updated)
- Chapter 4 (updated)
- Chapters 5 and 6 ((now GENUINELY) updated)
- Interlude: Arc Length and Riemannian Metric Geometry (updated)
- Chapter 7 (updated)

- Chapter 1 (updated)
- Chapter 2 (updated)
- Chapter 3 (updated)
- Chapter 4 (updated)
- Chapters 5 and 6 ((now GENUINELY) updated)
- Interlude (updated)
- Chapter 7 (updated)

- Week 1 (Introduction and Chapter 1) (updated)
- Weeks 2 and 3 (Chapter 2) (updated)
- Weeks 4 and 5 (Chapter 3, betweenness part (and Chapter 8)) (updated)
- Weeks 6 and 7 (Chapter 3, remainder) (updated)
- Weeks 8 and 9 (Chapter 4) (updated)
- Weeks 10 and 11 (Chapters 5 and 6) (updated and then revised)
- Weeks 12 and 13 (Chapter 7) (updated)
- Week 14 (Appendix A (and Chapter 8)) (updated)

- MacTutor History of Mathematics Archive (University of St. Andrews)
- Evans Library mathematics course guide
- University Writing Center
- David Borthwick's lecture on hyperbolic surfaces

Go to home pages: Fulling ._._. Calclab ._._. Math Dept ._._. University

e-mail: fulling@math.tamu.edu