The following is NOT HOMEWORK unless you miss part or all of the class. See the Main Class Web Page for ALL homework and due dates.

Angeles: http://www.dynamicgeometry.com/General_Resources/Advanced_Sketch_Gallery.html

Austin: http://www.cut-the-knot.org/Curriculum/Geometry/TangentTriangleToEllipse.shtml

Brandy: http://www.saltire.com/applets/advanced_geometry/napoleon_executable/napoleon.htm

Brett: http://nlvm.usu.edu/en/nav/category_g_4_t_3.html

Casey: http://www.cut-the-knot.org/Curriculum/Geometry/TangentTriangleToEllipse.shtml

Cayce: http://www.analyzemath.com/Geometry/properties_triangles.html

Darrell: "Two Trees.gsp" under Investigations

Dewey: http://www.members.shaw.ca/ron.blond/SimilarTriangles.APPLET/index.html

Emily: http://aleph0.clarku.edu/~djoyce/java/elements/usingApplet.html

Edgar: Soccer Ball Application

Katy: http://www.cut-the-knot.org/Curriculum/Geometry/HingedPythagoras2.shtml

Kimberly: http://www.frontiernet.net/~imaging/pythagorean.html

Lianna: http://faculty.evansville.edu/ck6/GIAJSP/EulerLine.html and http://aleph0.clarku.edu/~djoyce/java/Geometry/eulerline.html

Lee: Application/Sketchpad/samples/sketches/geometry/area.gsp

Mandi: http://www.saltire.com/applets/simtri1/simtri1.htm

Robby: Applications/Sketchpad/samples/sketches/geometry/Fractal Gallery.gsp

Toni: http://www.cut-the-knot.org/Curriculum/Geometry/HingedPythagoras2.shtml

Take questions on Test 2. If time remains, then search for references for the final project.

Save each Sketchpad file (control/click and then download it to the documents folder) and then open it up from Sketchpad and follow the directions:

Sketchpad Shortest Distance Paths

Image of Shortest Distance Paths

Sketchpad Equidistant 1

Image of Equidistant 1

Sketchpad Equidistant 2

Image of Equidistant 2

Review our Euclidean proof that parallel means equidistant and discuss what goes wrong in hyperbolic geometry.

Go over an application - a proof that the perpendicular bisectors are concurrent.

Build a right triangle in Sketchpad and investigate the Pythagorean Theorem.

Go to Applications/Sketchpad/ Samples/Sketches/Geometry/Pythagoras.gsp

Go through Behold Pythagoras!, Puzzled Pythagoras, and then Shear Pythagoras. Click on Contents to get to the other Sketches.

Go through Euclid's proof. Discuss Sibley

1) Name

2) Something that will help us remember them

Next discuss how can we tell the earth is round without technology?

Mention the related problem on Project 2 for Friday [Wallace and West Roads to Geometry 1.1 8].

Where is North? Also discuss 8/08 article

Begin the Geometry of the Earth Project. Groups choose their top three problems and turn these in to Dr. Sarah.

Induction versus deduction. An introduction to minesweeper games as an axiomatic system.

Axiom 1) Each square is a number or a mine.

Axiom 2) A numbered square represents the number of neighboring mines in the blocks immediately above, below, left, right, or diagonally touching.

Examine game 1. History of Euclid's elements and the societal context of philosophy and debate within Greek society. Intro to Geometric Constructions. Begin Euclid's Proposition 1 by hand and by a proof.