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As Sheldon knocked on the door of the conference room in his irritating way: tap, tap, tap, Mrs. Rodely: tap, tap, tap, Mrs. Gammill: tap, tap, tap, Mrs. Ellis, he could hear teachers chanting: "What do we want students to learn?", "How will we know if they have learned it?", "What will we do if they don't learn it?", "What will we do if they do learn it?" He was curious.
What are the 4 guiding questions of a PLC?