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# Simple Geometric Proofs Bundle - Interactive Note-Taking Materials

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Introducing proofs in Geometry can be difficult. This product contains simple geometric proofs that you can use with your students while they begin to explore the process of writing their own two-column proofs. There is a quick review of the contents that students will need to know before beginning the proofs. Then, they will finish a few proofs that have statements listed by writing the reason for each statement. Finally, they will write a few two-column proofs of their own.

This bundle contains the following products:
Introduction to Proofs
Simple Proofs with Parallel Lines
Simple Proofs with Triangles
Simple Proofs with Similarity and Proportion

These math journal and/or note-taking activities can be used for introduction of topics or to reflect/review what you have covered in class discussion. The problems listed in this activity packet build nicely on each other if introduced in the order that they appear. Our students enjoy filling them out and organizing them in their math journals so that they can refer back to them throughout the year. These activities are a great way to promote writing in math. Keys for scaffolded notes are included for reference.

**With the exception of Introduction to Proofs, these products are not included in our Geometry Bundle. This is a new product line.

Scaffolded Note Sheets with Sample Teacher Keys are included for the following topics:

What is a proof?
Formal Proofs (Two-Column Proofs)
Steps for Writing a Formal Proof
Example of an Informal Proof Using Algebra
Review: Properties of Equality for Real Numbers
Which property justifies the statement?
Simple Algebra Problems: Solve and Justify
Justifying the Steps for Algebra Problems
Solve and Justify the Steps for Each Algebra Problem
Write it Out: Simple Proof with Segment Addition
Cut it Out: Simple Proof with Segment Addition
Write it Out: Informal Proof (Segment Addition)
Cut it Out: Writing a Two-Column Proof (Segment Addition)
Write it Out: Simple Proof with Angle Addition
Cut it Out: Simple Proof with Angle Addition
Write it Out: Informal Proof(Angle Addition)
Cut it Out: Writing a Two-Column Proof (Angle Addition)
Your Turn: Simple Proof with Complementary Angles
Your Turn: Writing a Two-Column Proof (Supplementary Angles)

Solving for Variables 1-Parallel Lines Cut by a Transversal
Solving for Variables 2-Parallel Lines Cut by a Transversal
Solving for Variables 3-Parallel Lines Cut by a Transversal
Practice #1 Writing a Two-Column Proof
Practice #2 Writing a Two-Column Proof
Practice #3 Writing a Two-Column Proof

Solving for Variables – Proving the Angles of a Triangle have a sum of 180°
Preparing for Your Proof: Proving the Angles of a Triangle have a sum of 180°
Solving for Variables – Similar Right Triangles
Preparing for Your Proof: Similar Right Triangles
Solving for Variables – Exterior Angle Theorem
Preparing for Your Proof: Exterior Angle Theorem
Solving for Variables with Congruent Triangles 1
Preparing for Your Proof: Congruent Triangles 1
Solving for Variables with Congruent Triangles 2
Filling in the Blanks Two-Column Proof-Congruent Triangles
Corresponding Parts of Congruent Triangles are Congruent

Reviewing Parallelograms
Preparing for Your Proof - Parallelogram
Reviewing Parallelograms Part 2
Preparing for Your Proof- Another Parallelogram
Reviewing Rectangles
Reviewing Parallelograms and Rhombi
Preparing for Your Proof – Parallelograms and Rhombi
Reviewing Trapezoids and Parallelograms
Preparing for Your Proof – Trapezoids and Parallelograms

Reviewing Similar Triangles in a Trapezoid
Preparing for Your Proof - Similar Triangles in a Trapezoid
Reviewing Right Triangle Similarity
Preparing for Your Proof - Similarity in Right Triangles
Reviewing Triangle Similarity and Parallel Lines
Preparing for Your Proof-Triangle Similarity and Parallel Lines
Reviewing Similarity in Triangles with Altitudes
Preparing for Your Proof-Similarity in Triangles with Altitudes
Reviewing Similarity in Triangles with Medians
Preparing for Your Proof-Similarity in Triangles with Medians
Similarity and Proportion Proof Review Page

Plus 2 Interactive Math Notebook Foldable Activities. Please check out our preview for a closer look!

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