Mrs. Kempf's Math
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Math 7
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Math Videos
Lesson 2 (Unit 4) Math 7
Lesson 8 (Unit 3): Relating Area to Circumference
vimeo.com/222585631
Circumference and the Dragon of Pi Video
Unit 3 lesson 3
www.youtube.com/watch?v=1JwZMsiytEU&feature=youtu.be