Teaching holds the tension between certainty and ambiguity. When teachers plan units and lessons, we draw upon our craft knowledge to design a series of experiences with logic, flow, coherence, and outcomes, to name a few aspects. And teaching is ambiguous at the same time because in the course of a lesson, students respond in […]

“Insanity is continuing to do the same thing over and over and expecting different results” is a quote often used in the press and by politicians. (It is misattributed to Einstein, but there is no proof he wrote or said it.) This witty and seemingly overused statement may be from a mysterious origin, but it […]