Unit Plan
Khan Academy

Khan Academy: Constructing Triangles

For Students 6th - 8th Standards
Practice constructing triangles. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Handout
Wolfram Research

Wolfram Math World: Math World: Geometric Construction

For Students 9th - 10th Standards
Offers an explanation of what a geometric construction is and what some of the tools are that are used for it, including the traditional straightedge and compass. The site explains how to construct various polygons inscribed within a...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Tangent Lines

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] This concept teaches students about tangent lines and how to apply theorems related to tangents of circles.

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