Curated OER
Classification of Cerealites
Middle schoolers create a dichotomous key. In this categorizing lesson, students create a dichotomous key for different types of cereal. Middle schoolers classify the cereal into groups such as flakes and cereal with holes. Students...
Biology Pages
Kimball's Biology Pages: Self Incompatibility: How Plants Avoid Inbreeding
Since evolution favors genetic variability what prevents pollen from fertilizing its own eggs? This effective site presents answers to this question.
PBS
Pbs Learning Media: American Chestnut Tree
This annotated slideshow adapted from KET's Electronic Field Trip to the Forest illustrates how blight decimated the American chestnut tree and the methods scientists use to identify and pollinate the remaining trees to create...