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Geometry

01

Visualizing Shapes and Transformations in 2D and 3D

  • How and why to include Computer-Aided Design (CAD) in your geometry middle school units or high school courses.

02

Reasoning and Common Logical Mistakes

  • Euler diagrams

  • The Gnu Project

  • Direct proof

  • Proof by contradition

  • Proof by induction

03

Dynamic Geometry - Constructions and Discoveries

  • Where was that Earthquake?

  • Always-and-All quadrilaterals

04

Coordinate Geometry - Have more tools in your toolkit

  • Distance formula, midpoint formula, and slope

  • Using fewer variables - efficient set-ups

05

Quadrilaterals and Original Student Proofs

  • Basic properties of quadrilaterals

  • Modified quadrilaterals

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