Free Lesson Plans » Classroom Teaching Tools

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 »

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.

Brought to you by and CAST

Special thanks to our Educator Review Panel.

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

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

How Do You Know It's a Rectangle?

Theme:

Grades:

Subject:

Duration:

Standards& Goals:

Objectives:

Standards
& Goals: