Sine, cosine, and tangent by Sal Khan at Khan Academy
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From the Gilder Lehrman Institute of American History.
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A good video primer from Study.com.
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Calculus is one of the more intimidating ideas in mathematics, but at its root it’s just about change. Continuous change. For example, a staircase has a changing slope, but because it is composed of right angles we can use algebra to figure things out. The same applies for a ramp–it’s at an angle, but it’s […]
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Some people find their greatest success outside the classroom. But don’t conflate classroom performance with learning. The people shown here never stopped learning, and they all worked hard. A lot of people will say, “follow your passion.” Some of us believe that is bad advice. Your humble editor may be passionate about cycling, but no […]
Read moreThis is one of our favorite videos. Justice Stephen Breyer gives C-SPAN a tour of his chambers but more importantly does the best job we’ve ever seen of explaining how the US Supreme Court actually works. This is “the missing tour” for visitors to the Court, and is the one we point to whenever someone […]
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PBS’ excellent series on the U.S. government can be found here.
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From the Dude. Be Nice. Project
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