Volume 10 Number 1  ◊  December 1993

Table of Contents


Vol 10 No 1 Cover
Inside Cover
Rainforest Sourcebook by Laura K. Harmon
Mathematics, Nature, and Rep-Tiles by Linda S. Fosnaugh and Marvin E. Harrel
The Useful Syphon by Paul Janzen
Pythagorean Triples and Their Mental Calculation by Bryan Dawson
Logarithms, Slide Rules, and Calculators: Conventions by John Richard Schrock
Earth Science Activities for Elementary and Middle School Students by Susan Stover
Expanding Your Horizions Program
Book Review by Linda Landis