Welcome to the Geometry Zone

(Geometry, Periods A and F)
Web address shortcut for this page: www.modd.net/89geom

Are you nervous when you see NCWEE? concerned when you see CIRC? perturbed when you see PBC? Visit Mr. Hansen’s fabled abbreviations page to make sense of those cryptic markings you see on your papers. Also (new in 2008!), visit the HW store at www.hwstore.org for all your homework browsing needs.


Schedule at a Glance (see archives for older entries)
Written assignments should follow the HW guidelines. See the HW store at hwstore.org for more examples.


T 5/26/09

Optional Review Session, 9:00 a.m., Room LJ-302. Invite your classmates from A period, F period, or any other geometry section (including Ms. Dunn’s classes and Mr. Kelley’s class) to join you if they wish. It would be helpful if you could work most of the review problems and check your answers against the answer key beforehand, but if you cannot, then please come anyway. See Thursday’s calendar entry regarding bonus points (for my students only) for the review problems. I will stay until lunch or until the last student has been helped.

Final Exam for Sope and Tip (only), 2:00 p.m. to 4:00 p.m., Room LJ-302.
There should be no conflict with this time, since I checked the schedules for both of you, but if you cannot make it, call me immediately at 703-599-6624. Voice mail is available 24 hours a day.

Number Bee/Spelling Bee, 4:10 p.m., Room LJ-302. The prize to be given away is a pin-grid toy (very cool). Most of you will be on campus for an exam from 2:00 to 4:00 anyway, which means that you can relax and unwind by coming to the bee! You will definitely want to study for the number questions. After the bee, I will be available for review questions or extra help.


W 5/30/09

Mr. Hansen will be working at home, grading. If you need emergency math help, please leave a message at 703-599-6624.


Th 5/29/09

Final Exam, 11:00 a.m. to 1:00 p.m., Lower School Music Room. What to bring: several sharpened pencils, eraser, and a formula card (3 by 5 inches) with up to 6 area or volume formulas of your choice. No other notes, calculators, electronic devices, or scratch paper will be allowed in the exam room.

Mrs. Dunn has prepared a wonderful review problem set and an answer key. Warning: Do not peek at the answer key until you have made a thorough attempt at the problems.

I would really like you to study and do well on the final exam, and as an encouragement, I will offer partial exam immunity (i.e., bonus points) to anyone who shows me a good set of review work before the exam starts. What do I mean by good work? The usual, of course: organized work, diagrams clearly labeled. But there is one other thing I would like to see, and that is your metaknowledge statements in the margin. For example, after you discover that your answer is wrong by a factor of 2 as compared with Mrs. Dunn’s answer, do not simply erase and make the correction. Instead, I would like you to use a different color of writing to make the correction, and then write about what you learned. You might write something like, “I forgot that we were working with a hemisphere instead of a sphere,” or “I couldn’t find my mistake until I went back and cross-checked with the original system, and then I discovered that I had copied one of the equations incorrectly.”



Fun Links:
-- World record for paper folding: Pomona, CA, teenager achieves a seemingly impossible 12 folds!
-- Lots and lots of online IQ tests
-- Fallacious proof that pi equals 5
-- Freshman cancellation
-- National Cryptologic Museum, brought to you by the National Security Agency
-- The famous three houses/three utilities puzzle
-- The amazing nine-point circle
-- Alpha version of GeometryQuest/BigTrig (still very buggy)
-- Abusive tax shelters: Maybe you will use your education to devise clever schemes like this, or better yet, to try to eliminate them
-- Optical illusions and more fun links on Mr. Hansen’s home page

Study-Related Links:
-- Chapter 1 practice test
-- Midterm exam study guide and practice exam
-- Angle-arc puzzles written by the Class of 2006 (in 2003)
-- More angle-arc puzzles written by the Class of 2007 (in 2004)
-- Brain teasers written by the Class of 2008 (in 2004-05)
-- Timed math quizzes, courtesy of Mr. Errett
-- Quizzes, quizzes, and more quizzes for various math subjects (don’t let the title ‘Math for Morons’ discourage you—that’s really a moronic name for the site)
-- Proficiency test for rising 9th graders from the great state of Illinois
-- B.J. Pinchbeck’s Homework Helper for all subjects

Serious Links


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Last updated: 24 May 2009