PBS
Pbs: Mathline: Tessellations Wow! [Pdf]
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...
Other
What Is Rubistar? How to Make Rubrics
This online tool is designed for teachers to create rubrics that correspond with project-based learning activities.