by Bittinger, Marvin L., Beecher, Judith A., Penna, Judith A.
fromAlways learning
Trigonometry, a work in the collection of the Gelfand School Program, is the result of a collaboration between two experienced pre-college teachers, one of whom, I.M. Gelfand, is considered to be among our most distinguished living mathematicians. His impact on generations of yo…
by Neill, Hugh, Abbott, P., (Percival)
fromTeach yourself books (Lincolnwood, Ill.)