Unit Plan
Khan Academy

Khan Academy: Properties of Shapes

For Students 4th - 6th
Identify and compare shapes based on their attributes. Shapes include triangle types, quadrilateral types, pentagons, and hexagons. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video...
Unit Plan
E-learning for Kids

E Learning for Kids: Math: Dojo: Polygons and Time Zones

For Students 5th - 6th
Students will play several learning games to explore polygons such as triangles, and how to determine the area of triangles and the different types of triangles. They will also explore time zones.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Identifying Polygons and Ellipses

For Students 4th - 5th
[Free Registration/Login may be required to access all resource tools.] For this learning module, students are asked to look at images and identify ellipses and different types of polygons. Includes video demonstrating a sample problem...
Unit Plan
Math Is Fun

Math Is Fun: Polygons

For Students 2nd - 8th Standards
This is an excellent outline of the terms used to describe polygons as well as the definitions of the different types.
Handout
The Math League

The Math League: Figures and Polygons

For Students 9th - 10th Standards
This site provides definitions of different types of polygons and figures.
Article
Mocomi & Anibrain Digital Technologies

Mocomi: What Is a Polygon?

For Students 2nd - 8th
Defines polygons and explores characteristics, types of polygons, and how to calculate the area of a polygon.
Unit Plan
E-learning for Kids

E Learning for Kids: Math: Riksjas, Toek Toek: Polygons

For Students 5th - 6th
Explore polygons with Wang, a ricksha puller. Answer his questions and he will give you a free ride!
Activity
University of Cambridge

University of Cambridge: Maths and Sports: Stadium Sightline

For Students 9th - 10th
How would you design the seating for an Olympic stadium to give spectators the best view of events? This geometry and modelling activity is designed to be accessible to both GCSE and A-level maths students (Key Stage 4 and Key Stage 5),...
Unit Plan
Shmoop University

Shmoop: Basic Geometry: Polygons

For Students 9th - 10th
The geometry resource explores polygons. Descriptions, examples, and practice exercises are included.
Activity
Rice University

Rice University: Cynthia Lanius: Hidden Polygon Activity

For Students 4th - 7th Standards
On this site students are instructed to locate different types of polygons on triangle grid paper. This page can be printed so that students can actually draw them. It also gives a definitions link for each polygon.
eBook
Other

Online Statistics Education: Graphing Distributions [Pdf]

For Students 9th - 10th Standards
This is the second chapter of a statistics e-text developed collaboratively by Rice University, University of Houston Clear Lake, and Tufts University. It looks at many different types of data displays and the advantages and...
Unit Plan
Math.com

Math.com: Quadrilaterals

For Students 4th - 9th Standards
The lesson investigates types of quadrilaterals. Definitions, examples, and a worksheet are available.
Handout
The Math League

The Math League: Figures and Polygons: Nonagons

For Students 9th - 10th Standards
This site provides definitions and examples of the various types of polygons including nonagons.
Graphic
Palomar Community College District

Palomar College: Behavioral Science Statistics: Cumulative Percent Polygon

For Students 9th - 10th Standards
A step-by-step worked problem demonstrating how to take a set of data and produce a cumulative percent polygon. Hints are provided along the way, and the final graph is shown for the user to check.
eBook
Mathigon

Mathigon: Geometry: Polygons and Polyhedra: More on Polyhedra

For Students 9th - 10th Standards
This lesson focuses on polyhedra other than the platonic solids; these include an Archimedean solid, a polyhedron made up of different kinds of regular polygons, that looks the same from every direction. There are 13 different...
Unit Plan
E-learning for Kids

E Learning for Kids: Math: Music: 2 D Shapes

For Students 4th - 6th
Kyan is an African villager. Can you help him name and define different parts of shapes?
Whiteboard
ClassFlow

Class Flow: What Is a Polygon?

For Teachers 3rd - 5th Standards
[Free Registration/Login Required] Explore the world of polygons. Review the different types of polygons and quadrilaterals. Practice counting angles and sides. Identify specific polygons and create your own polygons.
Interactive
National Council of Teachers of Mathematics

Nctm: Illuminations: Shape Tool

For Students 3rd - 8th
This resource will help students better understand polygons. The shape tool allows users to create and manipulate different types of polygons.
Handout
Khan Academy

Khan Academy: Identifying Quadrilaterals

For Students 3rd Standards
Learn about the properties of rectangles, rhombuses, and squares, and practice identifying them. Includes hints for questions. CCSS.Math.Content.3.G.A.1 Understand that shapes in different categories
Lesson Plan
Alabama Learning Exchange

Alex: Geometric Mean and Indirect Measurement

For Teachers 9th - 10th
In this inquiry-based lesson, students will work in groups to gather measurements needed to approximate the height of a building. Students will discover how geometric mean can be used to find the lengths of missing sides of right...
Activity
Beacon Learning Center

Beacon Learning Center: Anglemania!

For Students 3rd - 5th Standards
Students explore four types of angles in this interactive web lesson.
Handout
Richland Community College

Richland Community College: Stats Graphs Defined

For Students 9th - 10th Standards
Richland Community College provides a glossary of many terms that are needed in order to understand statistics graphs and charts. Each of the types of charts is quickly explained in terms of what it is most effective in displaying.
Unknown Type
OER Commons

Oer Commons: Pre Assessment

For Teachers 6th - 8th Standards
Students solve for missing angle measures by applying what they have learned about types of angles and the angle measures of polygons. Students do a pre-assessment at the end of the lesson.
Activity
CK-12 Foundation

Ck 12: Quadrilateral Classification

For Students 9th - 10th
[Free Registration/Login Required] Students move the vertices to the given ordered pairs to determine the type of quadrilateral. Click learn more to watch a video and click challenge me to answer a practice question.