"Simple Machines lesson for 3rd grade unit. From Disney's Bill Nye the Science Guy. Levers, pulleys, and wheels. Also clips from Eureka!, a 1980 animated short series from Toronto. Music by John Williams"
Both of these interactive charts could be useful in starting lessons about energy and natural resource consumption. Have students use both interactives to see how they compare to others. Then ask students to identify opportunities for reducing consumption.
From HHMI. A lesson that requires students to work through a series of questions pertaining to the genetics of sickle cell disease and its relationship to malaria. These questions will probe students' understanding of Mendelian genetics, probability, pedigree analysis, and chi-square statistics.