They shrink! They grow! They morph and they fly!”, The "Metric Family” uses their super powers to reveal the logic of the metric system. You may know that 1,000 meters equal one kilometer. But do you know why? This is a great teaching resource. Perfect for home schooling or just to help you really understand how the metric system works. Visuals are the key to understanding the metric system. This book gets it right.  The kit enhances and reinforces the concepts with hands on practice.