A couple of weeks ago, I attended a conference on the science of reading held by John Gabrieli’s lab at MIT. It was, if nothing else, an eye-opening experience—not always in good ways, but certainly in ways that laid bare the problems involved in implementing broad changes to how reading is taught in the United States. At the reception after the conference, I happened to be introduced to Nancy Duggan, one of the founders of the Massachusetts chapter of Decoding Dyslexia, an organization that advocates for screening and support for dyslexic students. In the course of our conversation, I mentioned one of the stranger reading problems I’d seen among my students—namely,…