(And why is he writing about science misconceptions?)
David Rudel is a senior editor at ExploreLearning, an award-winning science and math educational software company supporting teachers throughout the United States and Canada. He has written curriculum for and/or designed dozens of their virtual manipulatives on a wide range of topics, including ecology, quantum mechanics, genetics, evolution, thermodynamics, mechanics, chemical equilibrium, phase changes, Newtonian dynamics, and astronomy.
To read more about how his work at ExploreLearning prompted him to write a series about common misconceptions perpetuated by middle-school and high-school textbooks, read the introduction to the series (.pdf).