Pieter Hoff is the inventor of the Groasis Waterboxx. It was elected the `Best of Whats New 2010 by Popular Science, one of the most influential science magazin

As The Giving Tree turns fifty, this timeless classic is available for the first time ever in ebook format. This digital edition allows young readers and lifelo

This book describes how matrices of similarities or associations among entities can be modelled using trees in order to explain some of the issues that arise in

Provides specific information on how to transform schools into results-oriented professional learning communities, describing the best practices that have been