Each day, students complete a warm-up that usually consists of spiraling the previous day's material, in addition to older material. Warm-up problems also sometimes extend lessons that students have encountered before to more unfamiliar contexts.
For a video narrative about how I structure each lesson, and how the warm-up fits in, click Warm UP.
In today's warm-up, I push kids to use logical reasoning to prove why each of the wrong answers are wrong, and I don't stop at just one explanation. I get kids to find multiple ways of proving something wrong, and then we land on the correct answer.