Friday, March 02, 2007
Geometry (Class 54)
Overview
Today, which looks like it will be sunny, students will take quiz 7 which focuses on using the ideas related to similar triangles. In addition, they will be going outside to put similarity to work in order to measure the height of the gym and the flag pole.
Textbook Sections
§8.4 (Txt. p.480) Similar Triangles
Key Attitudes
Mathematics is about justification.
Key Ideas
If triangles are similar, their corresponding sides are proportional.
If you know three values in a proportion, you can solve for the fourth value.
Key Skills
Using a scale factor to enlarge or reduce a triangle
Writing proportions when given two similar triangles
Calculating a scale factor when given two similar triangles
Measurement
Working with equivalent fractions
Handouts
No Handouts Posted
Assignment
§8.4 (Txt. p.483)18-26, 39-42, 53
Chapter 8: Lesson 2
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