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Instructional Video22:30
Why do prime numbers make these spirals? Instructional Video
3Blue1Brown

Why do prime numbers make these spirals?

12th - Higher Ed
A curious pattern in polar plots with prime numbers, together with discussion of Dirichlet's theorem
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Instructional Video
Glencoe Online Learning Center: Personal Tutor: Estimate Square Roots Instructional Video
McGraw Hill

Glencoe Online Learning Center: Personal Tutor: Estimate Square Roots

6th - 8th Standards
This step-by-step example explores how to use rational approximations of irrational numbers to compare the size of irrational numbers.
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