- What is a radian? Here's Sam's colleague's applet (on geogebratube).
- Trig war for review (thanks again, Sam!)
- Measuring the moon's size through geometry (Anna Weltman)
- With an Eye on the Mathematical Horizon, by Deborah Ball (good article, can only be read online)
- Fermat's Little Theorem (the ad before this video is bizarre - if the ad stays the same...)

## Tuesday, November 26, 2013

### Links versus Real Writing

I used to share links more often. I used to write substantive blog posts more often, too. Since I've been writing less, I haven't been comfortable sharing lots of links. Didn't want this blog to descend into just a link-share. But it would be helpful to me to have them here. So maybe I'll start sharing my almost daily finds, even if it's not exciting for y'all.

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I *always* appreciate link shares. The internet is very big and very fast, and it's so hard to know what's really worth checking out. Sometimes I don't end up reading a piece carefully until two or three people whose taste I trust shares them.

ReplyDeleteThank you for sharing these!

Thanks for the share. The Deborah Ball article, from Elementary School Journal in 1993, was a great blast from the past. The first sentence of the article, "Over the past few years, school mathematics has been the target of a wave of reform recommendations" is as true today as it was 20 years ago. I think Mathematical Horizon is a good metaphor. We keep moving toward the horizon - sometimes with backward steps along the way - and it doesn't seem to get any closer. Hmmm . . .

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