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The Lesson and the Meta-lesson

In class there's the lesson about a specific formula, sure, but the meta-lesson is how well the experience went. What worked? What didn't? How can we get more of the first and less of the second?

Einstein’s Theory of Special Relativity (MetaLearn Podcast)

I had another great chat with Nasos Papadopoulos on the wonderful MetaLearn podcast. Einstein’s Theory of Special Relativity has many consequences, including the famous equation E = MC² (Energy = Mass x Speed of Light²) and the notion that space and time are relative (observers can have different experiences of how large something is, or how much time elapsed).

Quick Insight: Intuitive Meaning of Division

While working on some math colorizations I ran across some interpretations of division.

Multiplication can be repeated addition, scaling, rotating (via imaginary numbers), and more.

What about division? Let's take a look.

It’s Time For An Intuition-First Calculus Course

**Summary:** I'm building a calculus course from the ground-up focused on *permanent intuition*, not the cram-test-forget cycle we've come to expect. Interested? Sign up for the [mailing list](http://betterexplained.com/articles/betterexplained-email-list/) to get news about the pilot, launching early August. The learning principles below will guide its development.

Print Edition of “Math, Better Explained” Now Available

I'm thrilled to announce the print edition of [*Math, Better Explained*](http://bit.ly/MathBetterExplainedPrint) is available on Amazon: With the magic of print-on-demand, you can order the book with overnight shipping (Amazon Prime!), and be reading full-color insights tomorrow. Yowza.

Finding Unity in the Math Wars

I usually avoid current events, but recent [skirmishes](http://devlinsangle.blogspot.com/2012/07/cant-we-all-get-along.html) in the math world prompted me to chime in. To recap, there've been heated discussions about math education and the role of online resources like Khan Academy.

Sign Up for the BetterExplained Email List

Hi all! I’m starting an email list for BetterExplained readers and everyone interested in deep, intuitive learning. Sign up with the form below...

Site Update: Ahas and FAQs for articles

I've just added a new feature to the site: an Aha / FAQ section for each article. You can add an aha! moment or question, and vote / discuss them individually. This extends [aha.betterexplained.com](http://betterexplained.com/articles/share-your-insights-aha-betterexplained-com-beta/), making mini-posts for key ideas in an article.

Math, Better Explained available on the Kindle Store!

Hi all, I wanted to announce that Math, Better Explained is available on the Kindle store! If you’re looking for a digital gift this holiday season, I know just the ticket :).