Thanks to the members of the Purdue International Biology Education Research Group for thoughtful feedback on this work. We are indebted to the late Dr. Aaron Rogat for his tremendous insights, tenacious demand for clarity, and constant support of our work. Many thanks to Mikhail Melomed and Drs. Elizabeth Suazo-Flores and Maurina Aranda for feedback on the article. This work benefited from ideas initiated within the Biology Scholars Research Residency program (S.M.G.). The interpretation of this work benefited from the ACE-Bio Network (National Science Foundation RCN-UBE 1346567).