Geometry Proof Wall

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Display the 26 most commonly used postulates, theorems, and definitions in Geometric Proof as useful classroom decor. Cards include diagrams to illustrate the postulate/theorem/definition when applicable.

Choose from full color, black & white with star background, and black & white versions. (Both black and white versions look beautiful printed on colored paper.)

Is there a postulate, theorem, or definition that you would like to see not included? Just send me a message and I will add it at my earliest convenience!

Postulates, Theorems, & Definitions currently includes:

-Reflexive Property

-Symmetric Property

-Transitive Property

-Substitution Postulate

-Addition Property of Equality

-Subtraction Property of Equality

-Multiplication Property of Equality

-Division Property of Equality

-Triangle Sum Theorem

-Segment Addition Postulate

-Segment Bisector

-Midpoint of a Segment

-Angle Addition Postulate

-Angle Bisector

-Linear Pair Theorem

-Vertical Angles

-Corresponding Angles Theorem

-Alternate Interior Angles Theorem

-Alternate Exterior Angles Theorem

-Same-Side Interior Angles Theorem

-Perpendicular Lines Theorem

-Right Angle Congruence Theorem

-Base Angles Theorem

-Base Angles Theorem Converse

-Corollary to the Base Angles Theorem

-Corollary to the Converse of the Base Angles Theorem

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Related Products

-Common Core Geometry Word Wall Vocabulary Cards

-Common Core High School Geometry Standard Posters

Total Pages
40 pages
Answer Key
Teaching Duration
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to see state-specific standards (only available in the US).
Prove theorems about triangles.
Prove theorems about lines and angles.
Know precise definitions of angle, circle, perpendicular line, parallel line, and line segment, based on the undefined notions of point, line, distance along a line, and distance around a circular arc.


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