Student Teacher

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Overview:
Lesson OverviewStudents will compare the formula for the area of a regular polygon to discover the formula for the area of a circle.Key ConceptsThe area of a regular polygon can be found by multiplying the apothem by half of the perimeter. If a circle is thought of as a regular polygon with many sides, the formula can be applied.For a circle, the apothem is the radius, and p is C.A=a(p2)→A=rC2→A=rπd2→A=rπ2r2→A=rπr=πr2 GoalsDerive the formula for the area of a circle.Apply the formula to find the area of circles.SWD: Consider the prerequisite skills for this lesson: understanding and applying the formula for the area of a regular polygon. Students with disabilities may need direct instruction and guided practice with this skill.Students should understand these domain-specific terms:apothemparallelogramderivationheightapproximate (estimate)scatter plotpiperimetercircumferenceIt may be helpful to preteach these terms to students with disabilities. 
Subject:
Geometry
Level:
Middle School
Grades:
Grade 7
Material Type:
Lesson Plan
Author:
Provider:
Pearson
Date Added:
11/02/2020
License:
Creative Commons Attribution Non-Commercial Creative Commons Attribution Non-Commercial
Language:
English
Media Format:
Interactive, Text/HTML

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