Curated OER
Changemakers Lesson Plans
An astronaut, a fashion designer, a Secretary of the Interior, an actor, and an Olympic Gold Medal winner! Teens and tweens have an opportunity to be changemakers as they research modern Native Americans and their many accomplishments...
National Security Agency
Backyard Building - Area and Perimeter
Turn young mathematicians into landscape architects with this four-lesson series on area and perimeter. Beginning with a basic introduction to calculating perimeter and area using non-standard units of measurement, this...