Instituto Latinoamericano de la Comunicacion Educativa
Red Escolar: Poligonos Regulares Y Sus Angulos
In Spanish. This site has an introduction to regular polygons, classification of polygons according to the number of sizes and an activity of constructing polygons by folding papers.
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.
University of Cambridge
University of Cambridge: Nrich: Logo Programming Overlapping Polygons
Using this Logo Program you can experiment with different values for N in the procedure and see the changes in the results.
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Symmetry in Regular Polygons [Pdf]
An activity for students to explore symmetry on different regular polygons.
University of Georgia
University of Georgia: Inter Math: Regular Polygon
This site gives a description of regular polygons along with visual representations of several polygons. There are links to related terms, everyday examples, challenging problems, more information, and the interactive check point...
Math Open Reference
Math Open Reference: Center of a Polygon
A complete reference guide to the center of a polygon. It provides definitions and an interactive activity that enhances further explanation. Includes links to related topics.