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I wrote this post. To summarize my argument in three lines:

There ARE different ways of defining mathematics, and some of them contradict each other.

Silicon Valley companies wrongly assume their platforms are agnostic on those definitions.

For better or worse, if you're trying to make money in math education, the Common Core State Standards are the definition that trumps your or my preference for recursion, computational algebra, etc, and those standards include a lot of practices for which, at this point in history, computers aren't just unhelpful, but also counterproductive.

Wrong. There IS software that presents math using Guided Discovery. In a visual manner that doesn’t hide the math. It also stresses introducing the conceptual BEFORE the computational as you do. The software is the online “ST math” program that has shown a respectable effect size and statistically significant gains under randomized controlled trials. It is definitely worth discussing this program and not blanketing all math ed tech as bad. Can you comment on this?

The info is…


and the randomized control trail is…



Elsewhere on this page, someone comments: "I would love to see one of these 'complaining about Khan Academy' articles with an attached example of the author's Right Way to teach whatever subject."

I'd be interested in your response to that.

I agree the article was too strident, but if you watch his videos I think they do a good job of illustrating his philosophy.

I don't think that the article was too strident at all. (I was a high school math teacher for years, and computers seem utterly useless to me when it comes to teaching kids to think mathematically.)

I'll take a look at the videos, as you suggest.

Fair enough! Here's a good video: http://mrmeyer.com/threeacts/speedoflight/

I like the combination of the video and the info-animation. Really interesting.

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