Learn how to tell which way is north on a sunny day using only a watch.
Tip: Bringing technology into the classroom is a major endeavor for most teachers. School days are not designed for experimentation and classrooms are often not designed well for a smooth use of technology. And new users often make the mistake of trying to do it all at once. But adding technology a step at a
Watch a webcast of teachers learning how to teach the properties of two-dimensional figures.