## Lesson
Plan Guide

## Georgia
Learning Connections

*TITLE: Polygons by Tennille
Rushin

* *

* *

***Annotation**

**Students
will learn the names for different sided polygons and then make conjectures
about the relationship between the number of sides and the sum of the angles.**

## *Primary Learning Outcome:

For students to understand the relationship between the
number of sides and the sum of the angles in a polygon.

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Additional
Learning Outcomes:

Students will need to learn names of polygons and
discover characteristics of polygons.
Questions asked to students:
What do all polygons have in common? What type of angles make up each polygon? Do you see a relationship between the
number of sides and the sum of the angles?

***Assessed QCC:**

QCC 13: Angle components, Angle types

Standard-Identifies the component parts of an angle, its
vertex, and sides or rays; and classifies angles as acute, right, obtuse or
straight.

***Total Duration:**

*One class period: 50 minutes *

## *Materials and Equipment:

*1.**
**Protractor*

- GSP
- paper
- pencil

##

## Technology Connection:

*Geometer’s Sketchpad*

**Procedures:**

__Step One__

*Discuss names of different sided polygons up
to a decagon. Have students say specific characteristics for these
polygons. 5 minutes*
*Have students in groups measure the angles (using
protractors) inside a triangle, quadrilateral, and pentagon. They will find the sum of the
angles for each polygon and then make a conjecture as to the relationship
between the number of sides and the sum of the angles. 25 minutes*
*Once each group has made their conjecture they
will use GSP to create a triangle, quadrilateral and pentagon. They will measure the angles and
determine if they made a correct conjecture. They can create different polygons and see if their
conjecture holds true. 20 minutes*
*The assessment will be the conjecture they
made and the polygons they created using GSP.*

***Assessment:**

**The student will be graded
on their conjecture as well as their polygon drawings.**

Extension:

Students can find the lines of symmetry in the polygons
they created and compare their figures to regular polygons.

Remediation:

Students will practice using a protractor and measuring
angles. They will classify the
angle and then find its exact measure.