Lesson 11 of 18
Objective: SWBAT understand dilations with the origin as the center of dilation.
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 here.
Play of the Day
For the huddle in this lesson, I like to review #4, since it has a scale factor that is not a whole number. It gets kids to move away from just their instincts (double or triple is easy) to apply the idea of image over original, which yields a scale factor of 3/2. It's also 1.5 times larger, which is a relatively simple concept for kids to master. This sets the stage for even more fractions as scale factors.