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### Sept27toOct1

 GeometryWrite a summary blog post by Friday 10/1SSBAT Formally define and explain interior and exterior angles of polygons (10th Geometry and Spatial Sense #1)http://www.mathopenref.com/polygoninteriorangles.htmlhttp://www.mathopenref.com/polygonexteriorangles.htmlMONDAYYou 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 anglesSomeone add up interior anglesSomeone draw exterior anglesSomeone measure exterior anglesSomeone add up exterior anglesNow Partners draw one polygon > rectangle (1 type per group, no repeats)measure & add interior & exterior anglesput 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 #31HOMEWORK 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 1show me your results so we can discuss what you did right or wrongSSBAT 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.THURSDAYchapter 5  NEED COMPASS from now onWe need the definition/description of angle bisector, perpendicular bisector, median, altitude, midsegmentWe should include a sketch with descriptionsInteresting site   HOMEWORK due MonPolygon AnglesFRIDAYHow do we construct these using a compass & straightedge?what is the proof that we have what we think we have?HOMEWORK due MonPolygon Anglesreview how to construct these. Practice each oneRead chapter 5 section 1coming up using Geogebra to construct & analyzechapter 5.2, 5.3, 5.4 book problems and eWorkbooksEXCELLENT math site  (http://www.mathopenref.com/)