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ProRadian

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Visit this site: http://www.proradian.net/

Author:Jennifer Silverman
Description: Protractors for learning about radians "in the same way you learned about degrees — by measuring." ProRadian learning sets contain two protractors, one scaled in 0.1 radians and one scaled in π/24 radians. Silverman, who now writes math curriculum for a Digital Academy, developed ProRadian protractors after 14 years of teaching high school math in public and independent schools.

Levels: High School (9-12)
Languages: English
Math Topics: Terms/Units of Measure, Euclidean Plane Geometry, Trigonometry

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