Lesson+Plan

=Finding the Cicumcenter of a Circle=

Overview:
Students will learn about perpendicular bisectors of triangles and finding the circumcenter of a circle circumscribed about a triangle.

Standards:

 * 2.03** Apply properties, definitions, and theorems of two-dimensional figures to solve problems and write proofs:
 * 1) Triangles.

Essential Question:
How do you find the circumcenter of a circle?

Learning Outcomes (What can they do?):
Create perpendicular bisectors to find the circumcenter of a circle.

Duration:
90 minutes

Classroom Logistics:
Students will be in pairs with desks together or on the floor working with the laptops. I will be around the room monitoring.

Tools + Rationale for each tool used:
Geometers Sketchpad - Creating incenter Internet - work with applet

Prior Content Knowledge:
Definition of angle bisectors and how to find them using Geometers Sketchpad.

Prior Internet/Web 2.0 Resource Knowledge:
===Instructional Strategy/Activities (Lecture, workshop, etc.):===