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Curated Video
Let’s Dive In
Dr. Forrester shows the various landforms and bodies of water located in the different regions of the United States.
Khan Academy
Vi and Sal Explore How We Think About Scale, Algebra II
Why do people perceive a bigger difference between the numbers one and two than between the numbers 1001 and 1002? In this interesting video, Sal is accompanied by Vi Hart. They talk about how we tend to think according to the...
Khan Academy
Logarithmic Scale, Logarithms, Algebra II
In this thought-provoking video, Sal shows how a typical linear scale is different from a logarithmic scale. He plots numbers on both scales and compares them to show why the logarithmic scale is useful. This video gives an intuitive...
Khan Academy
Khan Academy: Pre Calculus: Vi and Sal Explore How We Think About Scale
A video exploring the idea of the logarithmic scale by comparing it to a piano keyboard. Frequencies made by each note on a piano follow a logarithmic scale. For example, the frequency made by a C is double the frequency of the C just...