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Whiteboard
ClassFlow

Class Flow: Compass Constructions

For Teachers 6th - 8th
[Free Registration/Login Required] This flipchart provides the basic step-by-step guidance for making congruent constructions using a compass and a ruler.
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Whiteboard
ClassFlow

Class Flow: Congruency

For Teachers 9th - 10th Standards
[Free Registration/Login Required] Here are many variations of congruent triangles displayed for students to test their knowledge.
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Whiteboard
ClassFlow

Class Flow: Congruent Triangles, Bi Conditional Statements

For Teachers 9th - 10th Standards
[Free Registration/Login Required] This flipchart contains an introduction to congruent triangles. It also introduces logic (p->q) including bi-conditional statements. A challenge is presented to students.
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Activity
Math Is Fun

Math Is Fun: Congruent

For Students 9th - 10th Standards
The resource investigates congruent shapes. Examples and definitions are included.
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Website
National Council of Teachers of Mathematics

The Math Forum: Similarity and Congruence

For Students 9th - 10th
This site from Dr. Math at the Math Forum provides a collection of problems and exercises that require knowledge of the relations between similar or congruent shapes. Solutions are provided.