*

*
* *

How Do You Know It's a Rectangle?

Lesson Plan Snapshot. Sign up or Log in for access to complete peer-reviewed lesson plans, teaching tools & more. It's all FREE. Sign Up »
Log in to View Complete Lesson Plan

Theme:

Coordinate Geometric Proofs

Grades:

9 - 12

Subject:

Math

Duration:

45 minutes to 1 hour

Standards
& Goals:

New Jersey Core Curriculum Content Standards

Standard 4.2
All students will develop spatial sense and the ability to use geometric properties, relationships and measurement to model, describe and analyze phenomena.

Standard 4.5

All students will use mathematical processes of problem solving, communication, connections, reasoning, representations and technology to solve problems and communicate mathematical ideas.

Objectives:

Thinking Objective: Students will use their knowledge of geometric properties and the slope, distance and midpoint formulas to discover how to prove geometric shapes.

Mastery Objective: Students will be able to prove a quadrilateral is a square, rhombus, rectangle, trapezoid or isosceles trapezoid when given its four vertices.

Log in to View Complete Lesson Plan
Child writing on chalkboard

Are you an RFB&D member? Most of the books featured in these lesson plans are in the RFB&D Library. Check out the RFB&D Online Catalog today.

Not an RFB&D member? Learn how to become a member today.

Not sure if you are a member?
Call 1-800-221-4792 to find out.

Recording for the Blind & Dyslexic®, RFB&D®, Learning Through Listening®, the “Heart and Headphones” design, AudioPlus®, AudioAccessSM and all trademarks are owned by Recording for the Blind & Dyslexic, Incorporated.

LACP Bronze Award WinnerWinner of a Bronze Spotlight Award from the League of American Communications Professionals


Privacy Policy | Terms of Service | Accessibility Policy
Level A conformance icon, W3C-WAI Web Content Accessibility Guidelines 1.0