- YEARS ago Dr. Gloria Sanok introduced me to wax paper graphing.
- On this topic, I've presented papers at profesional meetings including in 1991, a MAA-SIAM-AMS, "Making Mathematics More Concrete: Manipulatives MINICOURSE"
and in 2000, one entitled "Exploring Functions ... Lecture Notes & Intro, presentation page linked
- In 1991, GRAPHING WITH MANIPULATIVES was written and revised in 1994, under the title EXPLORING FUNCTIONS THROUGH THE USE OF
MANIPULATIVES. The Graphing w/Manipulatives Product Line was created and sold.