Introduction to Geometric Proofs - Guided Notes, Presentation, and INB

Grade Levels
9th - 12th
Subjects
Standards
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Pages
21 pages
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Description

This flexible resource on Introduction to Proofs allows Geometry students to either build interactive math notebooks with guided notes (keys included) and foldable activities OR use the included presentation handouts (keys included) with the PowerPoint presentation for focused instruction. Choose what works best for your class and modify to make the content fit your needs. Notes are designed to clearly present the topics and reach all types of learners.

The zip file includes BOTH editable, plain-font resources and ready-to-print, non-editable PDFs. Suggested use guides are included.

Interactive Math Notebook FORMAT – Includes 2 parts: guided notes and foldable activities. Piece the components together and students can create their own “math textbook” in a math journal.

Presentation Sheets FORMAT – Includes guided notes that are organized in the same order as the included PowerPoint and are designed to print and present.

Presentation – Plain-font, no frills, PowerPoint presentation that you can use to present content to students. Slides have blank, student note templates followed by filled in teacher keys. Modify the editable presentation to best fit your needs.

This product covers 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)

Do you need more resources for teaching proofs? We have the following resources available, including a bundle!

Simple Geometric Proofs with Parallel Lines

Simple Geometric Proofs with Quadrilaterals

Simple Geometric Proofs with Triangles

Simple Geometric Proofs with Similarity and Proportion

Geometric Proofs BUNDLE (contains all of the above plus Introduction to Proofs)

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Algebra 1 INB Bundle

Geometry INB Bundle

Algebra 2 INB Bundle

Pre-Calculus INB Bundle

Pre-Calculus Add on for Algebra 2 INB Bundle

Statistics INB Bundle

High School Math Interactive Notebook Bundle (Algebra 1, Geometry, Algebra 2)

Student Practice Pages Bundles

Algebra 1 Student Practice Pages Bundle

Geometry Student Practice Pages Bundle

Algebra 2 Student Practice Pages Bundle

High School Math Student Practice Pages Bundle (Algebra 1, Geometry, Algebra 2)

Assessment Bundles

Algebra 1 Assessment Bundle

Geometry Assessment Bundle

Algebra 2 Assessment Bundle

High School Math Assessment Bundle (Algebra 1, Geometry, Algebra 2)

Consumer Math

Consumer Math Bundle

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Total Pages
21 pages
Answer Key
N/A
Teaching Duration
N/A
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Standards

to see state-specific standards (only available in the US).
Prove theorems about lines and angles.

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