By Sarah Tantillo When you ask teachers what they would call Do Nows if they couldn’t call them that, they come up with terms like warm-up, quick review, and first steps. My favorite is brain defibrillator. The point is, people come up with different titles because they have different perspectives on the purposes of Do Nows (or whatever you want to call them)—and for good reason. Do Nows can be used for different objectives: to review material, introduce new material,…