C?mo utilizar una regla (Using a Ruler)
Superherramientas cient?ficas (Super Science Tools)
Rulers seem like such simple tools, but their importance can?t be overstated. Without rulers?and the knowledge of how to use them?so many inventions, buildings, and other man-made achievements would just fall apart. In this volume, readers will review the basics of rulers and observe them being used by young student-scientists as well as by professionals in the working world. They?ll even test out their own ruler skills as they find out that rulers rule the world of science!
