Eighth graders explore flight and the dichotomous key. In this flight instructional activity, 8th graders gain understanding of the dichotomous key and create one of their own. Students then use their dichotomous key to classify...

Third graders create dichotomous keys using donuts. In this dichotomous instructional activity, 3rd graders review what a property is and sort donuts by a specific property. Donuts are kept in plastic baggies for the activity so they can...