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Thursday, May 5, 2016

5/5 Lesson 6.2.2 Dilations and Similar Figures

1.  Warm-up:  Solving and Graphing Inequalities (on side whiteboard)

2.  Lesson 6.2.2 Dilations and Similar Figures

Key Concepts:
  • Congruent vs. Similar
  • Rigid transformations vs. Dilations
  • How to undo a dilation
Problem 52 using eTool
Problem 53 using eTool.  This problem is a little confusing.  The coordinates given are AFTER she dilates the original shape by a scale factor of 1/3 

Discuss the questions in Problem 54 (no need to write).  CPM is expecting you to start making connections about dilations.

Problems 55 through 57 are the most important.
  • Take your time. Make predictions and discuss them with your team.  Then, test the predictions using the eTool
Homework:  Lesson 6.2.2 R/P #58-62 (skip 60)