Activity
CK-12 Foundation

Ck 12: Tessellations: Hexagon Tessellation

For Students 6th - 8th
[Free Registration/Login Required] Students determine whether a hexagon can tessellate or not. Click challenge me to answer practice questions and click learn more to watch a video.
Interactive
Shodor Education Foundation

Shodor Interactivate: Tessellate!

For Students 3rd - 8th Standards
This creative applet allows you to tessellate variations you create starting with either a triangle, rectangle or hexagon. Directions are only a click away.
Lesson Plan
PBS

Pbs: Mathline: Tessellations Wow! [Pdf]

For Teachers 3rd - 5th
An integrated geometry lesson on spatial sense in which students identify and use different shapes to create a tessellation. "Through a variety of modalities such as writing, music, art, poetry, and literature, students are introduced to...
Activity
University of California

Geometry Junkyard: Dissection Tiling

For Students 9th - 10th Standards
A great and very informative article about dissection tiling or tessellation.
Activity
PBS

Pbs Teachers: Architecture: Community Geometry

For Teachers 3rd - 8th Standards
Identify architectural structures and objects in the community that represent different figures and types of geometry and mathematics.
Website
PBS

Pbs Learning Media: Triangles

For Students 3rd - 5th Standards
In this video segment [2:01] from Cyberchase, the CyberSquad finds that by arranging triangle tiles they are able to create a path that will allow them to cross a river of hot lava.