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Sound Absorption
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09 Jun 2013 | Contributor(s): James Daniel Lehman
This grade 3 lesson plan focuses on a design task to create a wall to absorb sound.
Exploring Whirligigs
09 Jun 2013 | Contributor(s): Brenda Capobianco, James Daniel Lehman
This inquiry lesson, for grades 3-4, involves students conducting a fair test investigation to determine the way an object (a whirligig) falls through the air and how this fall depends on its mass, surface area, and other factors. This lesson is an adaptation of a lesson developed by...