Monday, January 08, 2007
Geometry (Class 39)
Overview
In today’s class we spend some time working through the review problems for the upcoming final. In addition, we return to the work we did before break concerning defining a parallelogram. We build on this work by proving various statements about parallelograms.
Key Attitudes
Mathematics can be a tool for investigating and uncovering facts.
Investigating requires creativity and persistence.
If you don’t first succeed, try, try again.
Key Ideas
The sum of the interior angles of a quadrilateral is 360˚
A parallelogram is defined by our book to be a quadrilateral with both pairs of opposite sides parallel. However, there are other ways to define a parallelogram.
Key Skills
Writing two-column proofs
The sum of the interior angles on a quadrilateral is 360˚
Assignment
§6.1 (Txt. p.325) #12-17, 37, 38, 41, 42
Review for Final through Chapter 2 should be finished.
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