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

Have you ever asked a student how they got their answers? You probably heard a response like "I don't know. I just did it in my head." Well, as you know Geometry requires students to think logically and to explain their thinking, and that is what this unit focuses on. This unit will walk you through inductive reasoning all the way to proofs.

This is a unit bundle that currently contains presentation notes, student follow-along notes handouts, glossary, glossary cards, 9 practice worksheets, 2 mini-quizzes, 9 section quizzes, 1 mid-unit quiz, a study guide, and 3 unit test versions. 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) Conjectures and counterexamples

2) Conditionals - including identifying the hypothesis and conclusion, drawing Euler diagrams, and negations

3) Variations of conditionals - including converse, inverse, contrapositive

4) Biconditionals and good definitions

5) Truth tables - including conjunctions, disjunctions, conditionals, and biconditionals

6) Deductive reasoning - including Law of Detachment & Law of Syllogism

7) Basic proofs - including using definitions, algebraic properties of equality/congruence, Vertical Angles Theorem, Congruent Complements Theorem, and Congruent Supplements Theorem

8) Vocabulary - 26 terms along with relevant symbols

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

Related Units

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

Parallel & Perpendicular Lines (Geometry - Unit 3)

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

Congruence (Geometry - Unit 5)

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

Other Related Products

7 Little MATH Words - Reasoning & Proof - Group 1 Terms - Digital Activity

7 Little MATH Words - Reasoning & Proof - Group 2 Terms - Digital Activity

Conditional Statements - Which One? Activity

Converse, Inverse, & Contrapositive - Which One? Activity

Geometry Digital Question Bank 8 - Conjectures & Counterexamples

Geometry Digital Question Bank 9 - Conditionals

Geometry Digital Question Bank 10 - Converse, Inverse, & Contrapositive

Geometry Digital Question Bank 11 - Basic Algebraic Proofs

Geometry Digital Question Bank 12 - Basic Geometric Proofs

Geometry Digital Question Banks - Unit 2 - Reasoning & Proof BUNDLE (includes banks 8-12)

Geometry to the Point - Lesson 8 Notes - Conjectures & Counterexamples

Geometry to the Point - Lesson 9 Notes - Conditionals

Geometry to the Point - Lesson 10 Notes - Converse, Inverse, & Contrapositive

Geometry to the Point - Lesson 11 Notes - Basic Algebraic Proofs

Geometry to the Point - Lesson 12 Notes - Basic Geometric Proofs

Geometry to the Point - Unit 2 - Reasoning & Proof BUNDLE (includes lessons 8-12)

Geometry Truth Tables with Conjunctions and Disjunctions

Word-Fall - Reasoning & Proof - Digital Activity

**This purchase is for one license only.**

If you are interested in purchasing multiple site licenses for a grade/department, school, or district, contact me at teacherminestore@gmail.com. Please protect the proprietary nature of this product. It should not be made available to others without purchasing the license.

Become a follower and get notified when new products are made available. They are 30-50% off for the first 48 hours!

If you have any questions or requests, feel free to email me at teacherminestore@gmail.com.

Discover something valuable!