This talk was presented at the 100th "birthday party" for the School Science and Mathematics Association in the Chicago Area a month ago. The research started as a comparison of past geometry books, which I collect, but soon led to the quest for answers to:

Why change?
Who were suggesting the changes? (You will be surprised.)
When were the changes suggested?
What were the changes?
Were the changes accepted?
Are the changes in the textbooks?

Handouts will be provided, and a few old books will be available for inspection with your TLC.

The speaker's background includes teaching at the high school and college levels, past president of the Metropolitan Mathematics Club of Chicago, past president of School Science and Mathematics Association, co-chaired the ISMAA Geometry Committee, General Electric Fellow at Purdue University, and the Burlington Northern award at North Central College.

He also has authored a geometry text and a CD-text titled "Mathematical Bridges For Your Future".

Thursday, 29 November 2001
4:10 p.m. in Math 109
Coffee/treats at 3:30 p.m. Math 104 (Lounge)