They save paper and trees, and make learning more fun and interactive.

VOA: special.2009.08.27

The events draw a diverse audience. "We have people who are professionals that range from engineers and physicians,to people that just have an interest in science and may be retired, may not be employed, may be students, and have just an interest in learning more."

VOA: standard.2010.05.04

This happens when an official language is used more often and children stop learning the local language of their parents.

VOA: special.2009.12.02

As both the North and South were learning quickly, the Civil War was becoming more costly than anyone had imagined.

VOA: special.2009.09.17

And by learning what it is about economic development or housing that actually helps to improve health, we can then design more programs and ultimately make better use of the knowledge that we have."

VOA: special.2009.07.20

By intensively training more teachers, he says,he hopes more students will get a chance to experience this new approach to learning math.

VOA: standard.2010.08.10