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http://en.wikipedia.org/wiki/Geometry


This article describes the history of Geometry and how it relates to the field of astronomy. This reminds me of a project I had my middle schoolers do, where they had to design an amusement park in outer space. For each roller coaster, they had to provide me with geometric measurements, drawing, and creative names. It was an exciting way for my students to tie geometry with astronomy.


http://en.wikipedia.org/wiki/Complementary_angles


This article defines "complementary angles" and has a link to an interactive demonstration I would use when teaching a lesson.


http://en.wikipedia.org/wiki/Degree_(angle)


This article discusses the history of degrees. It has a great poem included as well. This reminds me of how I have used writing and poetry, even in my math classes. One year, I asked students to write a poem on squares of the whole number from 1-12. I could ask students to do the same with a geometry concept.