Congruence (Geometry - Unit 5)

Teacher Mine
Grade Levels
8th - 11th, Homeschool
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75 pages
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  1. Cover ALL THE ANGLES with this Geometry Full Curriculum Bundle!This is a bundle that currently contains presentation notes, glossaries, practice worksheets, section quizzes, unit tests, study guides, weekly reviews, quarter tests, bellringers, and all items do have keys included. Updates may be adde
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Is this triangle the same as that one? How do you know? How can you be sure? What does it mean for them to be the same? All of these questions and many more are answered in this unit on the congruence of triangles and the various details related to types of triangles. You will most certainly want this one in your library of Go-To items for any unit on triangle congruence.

This is a unit bundle that currently contains presentation notes, student follow-along notes handouts, glossary, glossary cards, 6 practice worksheets, 6 section quizzes, a study guide, and a unit test. Other items will be added over time, and the price will be modified as necessary during this process.

I am and have been a high school Geometry teacher for 20+ years, and all of the content has been used in my classroom.

The notes introduce each concept along with a few examples. They are in-depth enough to cover a topic well, and, at the same time, are brief enough to allow you to add related topics/examples of your choice without being overwhelming or stifling your own creativity/flexibility.

The topics included are:

1) Congruent Triangles & CPCTC - including naming congruent figures, identifying corresponding parts, and congruence statements

2) Congruence Theorems - including SSS, SAS, ASA, AAS and why SSA and AAA are invalid

3) Congruence for Isosceles Triangles - including relationships and parts of isosceles triangles

4) Congruence for Right Triangles - including HL and when to use it

5) Congruence for Overlapping Triangles - including identifying overlapping parts and using overlapping triangles to prove other triangles are congruent

6) Vocabulary - 21 terms/theorems/postulates

Several proofs for these new concepts are also included.

The preview contains a sampling of the notes, assessments, and practice.

Related Units

Geometry Basics: Introducing Points, Lines, Planes, & Angles (Geometry - Unit 1)

Reasoning & Proof: Using Logic (Geometry - Unit 2)

Parallel & Perpendicular Lines (Geometry - Unit 3)

2D & 3D Shapes: Perimeter, Area, & Volume (Geometry - Unit 4)

Transformations (Geometry - Unit 6)

Relationships in Triangles (Geometry - Unit 7)

Constructions (Geometry - Unit 8)

Quadrilaterals (Geometry - Unit 9)

Similarity (Geometry - Unit 10)

Right Triangles & Trigonometry (Geometry - Unit 11)

Circles (Geometry - Unit 12)

Geometry Full Curriculum

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Total Pages
75 pages
Answer Key
Teaching Duration
2 Weeks
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to see state-specific standards (only available in the US).
Use congruence and similarity criteria for triangles to solve problems and to prove relationships in geometric figures.
Prove theorems about triangles.
Prove theorems about triangles.


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