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Transparent Protractors


August 17, 2005

Each year before I start my geometry unit I run off a class set of protractors made on transparencies. I lay the protractors right on the glass of the Xerox machine and copy them onto the transparency film. I can usually fit seven on a page. I cut them out and give them to my class. This way everyone has one and if it is lost, it can easily be replaced. They are small enough to be used to take measurements right in their books and since they're transparent, they are much easier to read.

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