If the delay between a sound and its echo is less than 1/10th of a second, the human ear can’t distinguish it. Through the use of a Slinky, rubber band guitar, and straws, scholars explore where sound comes from and how it travels....

Representing data is as easy as pie. Class members construct pie charts given a frequency table. Individuals then determine the size of the angles needed for each sector and interpret the size of sectors within the context of frequency....

Turn the class into a percussive orchestra and let the kids take over as conductor. You'll explain a few ins and outs of what a conductor does. Then you hand over the baton and let your budding Beethovens conduct each other as they...