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Sept27toOct1

Geometry

Write a summary blog post by Friday 10/1


SSBAT Formally define and explain interior and exterior angles of polygons (10th Geometry and Spatial Sense #1)

http://www.mathopenref.com/polygoninteriorangles.html


http://www.mathopenref.com/polygonexteriorangles.html


MONDAY
You should know a bit about using Software to help analyze properties and show proof or properties.
Someone draw a Polygon (not regular)
Someone measure interior angles
Someone add up interior angles
Someone draw exterior angles
Someone measure exterior angles
Someone add up exterior angles

Now Partners draw one polygon > rectangle (1 type per group, no repeats)
measure & add interior & exterior angles
put the data together in a class spreadsheet  & try to find a pattern.

TUESDAY
- a couple of questions about  relative error
- get a book & give me your number
- look at class folders in my Google Docs.  Who is missing?
solve some polygon angle problems on paper (notes)
p. 510 #3-10 ; p. 511 #24-25 ; p. 512 #31
HOMEWORK look at the book problems ; create a student account with the book so you can get the book online.

WEDNESDAY
- Finish the book problems
- partners will do eWorkbook  chapter 8 section 1
show me your results so we can discuss what you did right or wrong

SSBAT define and explain key aspects of segments related to triangles (angle bisector, perpendicular bisector, median, altitude, midsegment) and will construct  these segments using a compass & straightedge and software.
THURSDAY
chapter 5  NEED COMPASS from now on
We need the definition/description of angle bisector, perpendicular bisector, median, altitude, midsegment
We should include a sketch with descriptions

Interesting site   
HOMEWORK due Mon
Polygon Angles

FRIDAY
How do we construct these using a compass & straightedge?

what is the proof that we have what we think we have?
HOMEWORK due Mon
Polygon Angles
review how to construct these. Practice each one
Read chapter 5 section 1

coming up using Geogebra to construct & analyze
chapter 5.2, 5.3, 5.4 book problems and eWorkbooks

EXCELLENT math site  (http://www.mathopenref.com/)







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