1. Agenda 02.11.11 Warm Up/Reflection Questions from HW? Ch 8.8 Similarity and Dilations Making Faces Project (Due Monday)

2. Warm Up Graph the following points to create triangle ABC. A (1, 2) B (4, 1) C (2, 4) Now, complete the following transformations: Reflect across the x-axis Translate 8 units left and 6 units down Rotate 90º counterclockwise

3. Similarity and Dilations Chapter 8.8

4. Similar Polygons: have the same shape, but can be different sizes Dilation: stretches or shrinks a figure. The image created is similar to the original figure Distortion: scales the figure in one dimension, leaving the other dimension the same

6. TASK #1 Place a sheet of graph paper over the face parts worksheet, and trace the desired parts to make a face Place letters along the width and numbers along the length of the graph paper to provide reference coordinates for each cell of the face. Create the face

7. TASK #1

8. TASK #2 Enlarge the face To do this, you will double the width and length of the cells of the face.

9. You will need to copy each cell’s content form the original into the appropriate cell of the enlargement. (What is in cell D3 of original will go in cell D3 of enlargement, it will just be much larger) TASK #2

11. TASK #3 Distort the face To distort the face, you will scale up one dimension, and leave the other dimension the same. Please scale the one dimension by 3 or 4.

12. TASK #3

13. To Recap: Task #1: Draw the face (one box for each dimension) Task #2: Enlarge the face (two boxes for each dimension) Task #3: Distort the face (one box for each on one dimension, three boxes for each on the other dimension) When you are done, color in the faces. Note: each face should be on a separate piece of graph paper.