Dilations 2

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SWBAT understand dilations with the origin as the center of dilation.

Big Idea

Biggie or Smalls? Continue setting the foundation for students' understanding of dilations.

Warm Up

10 minutes

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

40 minutes


10 minutes

For the huddle in this lesson, I like talking about #6, 7, and 8, because they push on some conceptual understanding of dilations beyond the simple application of scale factors.  They push to the next level of thinking, and are nice opportunities for kids to get up and defend their positions in front of the entire class.


15 minutes

Homework is to be completed at home and should take students approximately 15 minutes.