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# Properties of Equality and Congruence

## Logical rules that allow equations to be manipulated and solved.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## SLT 36 Construct a logical argument to develop a formal proof.

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## Properties of Equality and Congruence

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This concept reviews properties of equality and congruence.

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• PLIX

## Properties of Equality and Congruence: Justifying Algebraic Steps

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Properties of Equality and Congruence Interactive

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• Video

## Properties of Equality and Congruence Principles

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This video gives more detail about the mathematical principles presented in Properties of Equality and Congruence.

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• Video

## Properties of Equality and Congruence Examples

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This video shows how to work step-by-step through one or more of the examples in Properties of Equality and Congruence.

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• Practice
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## Properties of Equality and Congruence Practice

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• Critical Thinking

## Properties of Equality and Congruence Discussion Questions

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A list of student-submitted discussion questions for Properties of Equality and Congruence.

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## Properties of Equality and Congruence Pre Read

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To encourage students’ critical thinking about vocabulary concepts, to allow students to reflect on their knowledge of individual vocabulary words, and to increase vocabulary comprehension using the Vocabulary Self-Rate.

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## Properties of Equality and Congruence Post Read

by CK-12 //at grade

To encourage students’ critical thinking about vocabulary concepts, to allow students to reflect on their knowledge of individual vocabulary words, and to increase vocabulary comprehension using the Vocabulary Self-Rate.

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• Pre and Post Read

## Properties of Equality and Congruence PrePostRead

by CK-12 //at grade

To encourage students’ critical thinking about vocabulary concepts, to allow students to reflect on their knowledge of individual vocabulary words, and to increase vocabulary comprehension using the Vocabulary Self-Rate.

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• Real World Application

## Properties Of Equality And Congruence

by CK-12 //at grade

Simply stated, the Transitive Property Fallacy of MMA is this: if Fighter A beats Fighter B, and Fighter B beats Fighter C, then Fighter A would beat Fighter C. Does this work?

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• Study Guide

## Proofs Study Guide

by CK-12 //at grade

This study guide reviews proofs: algebraic proof, properties of congruence, and geometric proofs (two-column).

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