Viewing profile — Trianglemancsd

Sure thing. I'm not a huge fan of expository video, so I don't have a ton of things. Here I use video to show an algorithm: http://www.sophia.org/partial-quotients-algorithm-tutori…

Drat! Good catch. Martin Gardner it is.

A number line doesn't help some students decompose numbers. The key insight in this example is noticing that 0.35 is "3 tenths and 5 hundredths", in addition to being "35 hundredth…

Hi. OP here. On the Rational Number Project matter, you'll notice that I didn't recommend the entire body of work, but rather one article relevant to the matter at hand. It's worth…

Fair enough. Thanks for the reply. No worries about the forum for the response.

Open letter writer here. I am so glad to hear that your child finds Khan Academy videos stimulating and thought-provoking. I really do think that's wonderful and I am glad this res…

I have to agree with this, for sure.

Thanks for the thorough response here. You wrote, "Our recent push to improve our math content hasn't yet touched the decimals exercises but it will soon." But Mr. Khan posted a vi…

Hi. Original poster here. I have amended the line in the post to make clear that the "useless" claim was not intended to apply to all of Khan's videos; only to the decimal ones. As…

As one of those who worked on one of the Washington Post pieces, I would invite you to come by my blog, Overthinking" rel="nofollow">http://christopherdanielson.wordpress.com>Overt…

"Khan Academy should be ideally placed..." I would say 'yes' and 'no' to this. Yes if the questions ask, and no if they don't. And that's the point of the piece. Khan won't pick up…