Rod Keller, Doris Davidson
A collaboration between an English and Math teacher to have students apply their knowledge of mathematics to another field while writing fresh, clever, and memorable poems. Includes student samples.
Peggy House
Extensions of a geometry problem that give students firsthand experience with what it means to think mathematically.
Roza Leikin
Introduces a triangle for which many different problems can be posed on the basis of one unusual property. Three problems on this property are posed, along with solution strategies that can be used in classroom activities.
Thomas Hutcheson
Two problems, easily solved in three dimensions, that are often approached in two.
Peter Oliver
Presents discovery activities for Elementary, Middle, and High school students based on the Varignon Parallelogram Theorem.
Alan Lipp
A method for visualizing the complex roots of a polynomial equation, thereby making them a little more "real" and a little less "imaginary."