CK-12 Foundation
Ck 12: Geometry: Polygon Classification
[Free Registration/Login may be required to access all resource tools.] Recognize and classify different polygons
Education Development Center
Tune in to Learning: Polygons and Perimeter
Explore different polygons and find their perimeter with this interactive lesson from T.V.411. Students see examples of polygons in everyday life and have immediate feedback to your responses to lesson questions.
ClassFlow
Class Flow: Polygons and Quadrilaterals
[Free Registration/Login Required] Characteristics of polygons and quadrilaterals are presented. Student activities include opportunities to identify these figures.
Khan Academy
Khan Academy: Quadrilateral Problems on the Coordinate Plane
Challenge problems involving the coordinates of the vertices of the quadrilaterals Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
CK-12 Foundation
Ck 12: Elem Math: Visually Identifying Quadrilaterals
[Free Registration/Login may be required to access all resource tools.] Cursor down if needed to locate the video "Visually Identifying Quadrilaterals (Trapezoids, Parallelograms, Rectangles, Squares, Rhombi)." Students watch a video and...
CK-12 Foundation
Ck 12: Geometry: Quadrilateral Classification
[Free Registration/Login may be required to access all resource tools.] This concept teaches students to classify quadrilaterals in the coordinate plane.
CK-12 Foundation
Ck 12: Geometry: Quadrilateral Classification
[Free Registration/Login may be required to access all resource tools.] Recognize and classify quadrilaterals
CK-12 Foundation
Ck 12: Geometry: Quadrilateral Classification
[Free Registration/Login may be required to access all resource tools.] Recognize and classify quadrilaterals
CK-12 Foundation
Ck 12: Geometry: Quadrilaterals That Are Parallelograms
[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to prove that a quadrilateral is a parallelogram given the properties of parallelograms.
Texas Instruments
Texas Instruments: Measuring Polygons an Introduction to Cabri Jr.
This activity is designed as an introduction to using the Carbri Jr. application on the TI-83+/84+ calculators. Students are guided through the menu system and are shown how to draw triangles, quadrilaterals and and a pentagon. Perimeter...
Oswego City School District
Regents Exam Prep Center: Study of Quadrilaterals
An interesting technique is used for student viewers to learn about quadrilaterals. A viewer can meet the quadrilateral family by clicking on a link and characters will introduce themselves and tell you about their distinguishing...
Math.com
Math.com: Quadrilaterals
The lesson investigates types of quadrilaterals. Definitions, examples, and a worksheet are available.
Los Angeles County Office of Education
Los Angeles County Office of Education: Quadrilateral Quest
Use your knowledge of properties of quadrilaterals to correctly match quadrilaterals.
CK-12 Foundation
Ck 12: Quadrilateral Classification
[Free Registration/Login Required] Students will move the vertices of the quadrilateral to form the congruent quadrilateral. Click learn more to watch a video and click challenge me to answer a practice question.
CK-12 Foundation
Ck 12: Quadrilateral Classification
[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.
CK-12 Foundation
Ck 12: Quadrilaterals That Are Parallelograms
[Free Registration/Login Required] Students will move the interactice quadrilateral to determine which quads are parallelograms. Click learn more to watch a video and click challenge me to answer a practice question.
The Math League
The Math League: Figures and Polygons
This site provides definitions of different types of polygons and figures.
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Polygons and Areas of Plane Figures
Twenty-five problems cover the topics of polygons and finding the area for various plane figures. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View...
Khan Academy
Khan Academy: Quiz: Inscribed Quadrilaterals
Use the fact that opposite angles in an inscribed quadrilateral are supplementary to solve a few problems. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Quadrilateral Angles
Find missing angle measures in quadrilaterals. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Quia
Quia: Polyatomic Ions Quiz
This site gives you a little Quiz about how much you really know about polygons.
ClassFlow
Class Flow: What Is a Polygon?
[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.
ClassFlow
Class Flow: Segments and Polygons
[Free Registration/Login Required] This flipchart reviews segments, parallel and perpendicular lines and then introduces polygons including quadrilaterals. It has many real world examples of shapes and includes Activote assessment.