Andrea Rothbart: 2 books

An imaginative introduction to number theory, this unique approach employs a pair of fictional characters, Ant and Gnam. Ant leads Gnam through a variety of theories, and together, they put the theories into action—applying linear diophantine equations to football scoring, using a black-magic device...

This breakthrough book covers the head-to-toe, outside-inside health needs of today's 10- to 21-year-olds. Written by experts in adolescent medicine and parent-child relationships, this comprehensive reference gives no-nonsense, straightforward guidance on how to talk with teens in a way that will...