Understanding genetic drift is crucial for a comprehensive understanding of biology, yet it is difficult to learn because it combines the conceptual challenges of both evolution and randomness. To help assess strategies for teaching genetic drift, we have developed and evaluated the Genetic Drift Inventory (GeDI), a concept inventory that measures…

The questions for this research were: (1) what did preservice teachers know about the nature of science; (2) what were their religious beliefs that had implications for how they viewed science; and (3) what effect did instruction on the nature of science have in changing their knowledge level? A 25-item questionnaire was given to secondary science…

Designed to address the major conceptual problems associated with evolution and variation and survival in populations, this module can be used with high school students or college nonscience majors including those in elementary education. It is one in a series developed by the project "Overcoming Critical Barriers to Learning in Nonmajors'…