Unit Plan
Arizona Department of Education

Area and Perimeter of Regular and Irregular Polygons

For Teachers 3rd - 6th Standards
Extend young mathematicians' understanding of area with a geometry lesson on trapezoids. Building on their prior knowledge of rectangles and triangles, students learn how to calculate the area of trapezoids and other...
Unit Plan
Buffalo State

A Five Day Approach to Using Technology and Manipulatives to Explore Area and Perimeter

For Teachers 3rd - 6th Standards
Young mathematicians build an understanding of area and perimeter with their own two hands in a series of interactive geometry lessons. Through the use of different math manipulatives, children investigate the properties of...
Unit Plan
CK-12 Foundation

Ck 12: Regular and Irregular Polygons

For Students 9th - 10th
[Free Registration/Login Required] Students explore the concept of regular and irregular polygons by navigating through the interactive learning module and then answering questions that go along with the module. Students can also learn...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Regular and Irregular Polygons

For Students 6th - 7th
[Free Registration/Login may be required to access all resource tools.] Understand the difference between regular and irregular polygons.
Unit Plan
Cuemath

Cuemath: Regular Polygon

For Students 9th - 10th Standards
Introduces the concept of regular polygons along with regular polygon examples, not regular polygons, irregular polygons, and area of a regular polygon. Check-out the solved examples for better understanding and try your hand at solving...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Regular and Irregular Polygons

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Identify regular polygons and their characteristics
Unit Plan
Math Is Fun

Math Is Fun: Area of Irregular Polygons

For Students 9th - 10th Standards
Learn how to use coordinates to calculate the area of an irregular polygon.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Polygon Classification

For Students 8th
[Free Registration/Login may be required to access all resource tools.] Identifying polygons, their diagonals and their angles
Unit Plan
Math Is Fun

Math Is Fun: Properties of Regular Polygons

For Students 3rd - 8th
Find a definition of regular polygon, and learn how to calculate the internal angle, external angle, and number of diagonals of a regular polygon. Also, learn how to find the area of regular polygons.
Unit Plan
Sophia Learning

Sophia: Classifying Polygons

For Students 6th - 8th
This lesson explores the characteristics of various types of polygons. It includes two PowerPoint presentations that test students' understanding by grouping polygons in the correct categories.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area of Regular Polygons

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] This concept teaches students to calculate the area and perimeter of regular polygons. Students examine guided notes, review guided practice, watch instructional...
Unit Plan
E-learning for Kids

E Learning for Kids: Math: Russian Toy Store: 2 D Shapes

For Students 4th - 6th
Mattie and her four sisters are visiting a toy store. Can you help them find different shapes in the toy store?
Unit Plan
Vernet -Virtual Education Resources Network

Salon Hogar: Referencia Rapida De Formulas Geometricas

For Students 9th - 10th Standards
This site provides the user with a useful reference to different geometric forms, their elements, formulas, and areas. Entirely in Spanish.
Unit Plan
Khan Academy

Khan Academy: Area of Composite Shapes

For Students 5th - 7th Standards
Practice finding the areas of complex shapes that are composed of smaller shapes. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

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