PBS
Scale City — Scaling up Recipes and Circles in the Real World
What a great big skillet you have. The resource introduces the class to the world's largest stainless steel skillet. The class creates a model of the skillet and a typical 12-inch skillet and compares the relative sizes of their areas....
Numberphile
Tau vs Pi Smackdown
Who wins the tau vs pi debate? Two mathematicians share their view of whether tau or pi is better in a video from the Numberphile Pi series. Spoiler alert: Pi wins.
Curated OER
What is a Circle?
A circle is a set of all the points that are equal distance from a center point. Learn the definition of some of the terms that are associated with a circle: diameter, radius, chord.
Khan Academy
Speed Translation
Teaching young mathematicians to use consistent units in their expressions as well as numbers, Sal demonstrates several ways to translate speed units in pre-algebra. He encourages viewers to memorize common speed units, such as the...
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