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= Welcome to Utilizing Geometer's Sketchpad to Explore Quadrilaterals! = =**Purpose**= This wiki has been created to provide a resource for teachers both during and after this workshop. This wiki contains activities and Geometer's Sketchpad files that teachers may be able to use when teaching quadrilaterals and extensions of quadrilaterals.

=North Carolina Standard Course of Study- Geometry= GOAL 2: The learner will use geometric and algebraic properties of figures to solve problems and write proofs.
 * 2.01 Use logic and deductive reasoning to draw conclusions and solve problems
 * 2.02 Apply properties, definitions, and theorems of angles and lines to solve problems and write proofs
 * 2.03 Apply properties, definitions, and theorems of two-dimensional figures to solve problems and write proofs:
 * b) Quadrilaterals

=Common Core Standards in Mathematics= Prove geometric theorems Make geometric constructions
 * 11. Prove theorems about parallelograms. Theorems include: opposite sides are congruent, opposite angles are congruent, the diagonals of a parallelogram bisect each other, and conversely, rectangles are parallelograms with congruent diagonals.
 * 12. Make formal geometric constructions with a variety of tools and methods (compass and straightedge, string, reflective devices, paper folding, dynamic geometric software, etc.). Copying a segment; copying an angle; bisecting a segment; bisecting an angle; constructing perpendicular lines, including the perpendicular bisector of a line segment; and constructing a line parallel to a given line through a point not on the line.
 * 13. Construct an equilateral triangle, a square, and a regular hexagon inscribed in a circle.

==Use the navigation bar to the left to view the different activities of the workshop.==