Friday, September 21, 2007
Geometry (Class 9)
Overview
In today’s class we continue our work with missing angle puzzles, working towards writing steps for the solution process as well as justifying the steps with reasons. In addition, we take our first test which covers the materials from the first 8 classes (Chapter 1).
Textbook Sections
§1.6 (Txt. p.44) Angle Pair Relationships
Vocabulary
linear pair
vertical pair (vertical angles)
interior angles of a triangle
congruent angles
parallelogram
trapezoid
polygon
opposite angles
Key Attitudes
Math is about reasoning and justifying.
Key Ideas
You can use “If, then” reasoning to build up a solution to math problems.
Key Skills
Solving missing angle puzzles.
Writing steps to represent the solution path for solving the missing angle puzzle.
Turn-In (#8)
Chapter Test- Txt. p.63 #1-20
Handouts
No Handouts Posted
Assignment
Finish as many Missing Angle Puzzles as possible (eventually you will have to do them all).
Txt. p.47 #8-32, 45, 46, 49, 50, 53, 54, 56-58
Disclaimer- The assignment as stated in class is the official assignment. Every effort is made to keep this posting accurate, but you should refer to what was stated in class as the final word.
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