1. The Omniscience Flaw:Reflection in practice requires teachers to effectively address whatever provokes them in the moment, yet sometimes the challenges that require action are not the ones teachers see or hear. For example, while working with a small group or helping an individual student, teachers may miss off-task students in other corners of the classroom. To maximize reflection in practice, teachers need extraordinary, all-knowing powers. While many teachers have superhero-like qualities, omniscience is not one of them.2. The Symptom-Treatment Flaw:Another inadequacy of situational thinking is that it does not provide time for the consideration of root causes. Because teachers must react in the moment, the critical pause required to conduct an “act of search or investigation” is not possible (Dewey, 1910).3. The Recollection Flaw:Reflection on practice relies on the accuracy of memory. Educators must recall the details of prior lessons to maximize their diagnosis, but those details often fade in memory. Reflection is best when specific, yet memory can only deliver an adumbrated version of what happened in any given hour.