04
Dec 13

Euclid and Graphic Design

On BrainPickings I came across a review of an absolutely stunning version of Euclid’s Elements. Produced in 1847 by mathematician Oliver Byrne, the book is obsessively visual like the proof below of the Pythagorean Theorem. I would love to find a poster for my office. Sadly Google came up empty. I did happen to find another 2010 review in the NY Times. You can also buy the book on Amazon. Maybe a holiday present for that geek in your life?

euclid


25
Nov 13

Visualizing Math

moibus
Stick this in your feed reader and love it. I just found an awesome Tumblr called Visualizing Math that collects all manner of math visualizations from all over the web. I especially the gifs like the above example (might need to click on it to see).


18
Nov 13

Love and Math

love and math

I caught a really promising book review for Love and Math by Edward Frenkel in the New York Times. I’m already 10 books behind on my reading list right now, but I think it’s about to be 11.


11
Nov 13

Math + Art

bianca chang

Here is an artist I feel certain will move your mathematical little heart. Check out Bianca Chang’s stunning gallery site. I came by it thanks to Chad Wys on Tumblr.


04
Nov 13

Math + Jokes

sad parallel lines

I get sent math jokes all the time. Just check my FB wall. I feel like I’ve seen them all. This was new to me though. Kinda sweet and funny? Thanks, Sue, for sending it my way.


28
Oct 13

Is Math Real?

I remember taking a Philosophy of Math class as an undergrad, and it was the first time I ran into the question, is math real? Or maybe a more nuanced way of putting it is, what kind of reality does it have? This video surveys the most popular theories. Warning, in case you have a lot to do today, you can wonder about this one a long time.


21
Oct 13

PBS Math Channel

There is a new PBS math channel on YouTube I learned about from Free Tech for Teachers. The content level is pretty basic, but it could be a nice review for students. I know a number of my algebra students still struggle with integer operations. I especially like the quiz video above. Very clever use of a YouTube video. The production quality, being PBS, is also a bit higher than a lot of the math videos around.


16
Oct 13

Swing it, Baby!

Here is a way to factor trinomials that I’d never seen before. It came my way via the tutoring center. I’m working on a proof, but it seems really convincing. Check it out. It is a lot easier than the reverse foil or AC-methods. Does anyone know who came up with it?


07
Oct 13

Infinite Chocolate

chocolate bar

This gif (double click to play) came up in my google+ feed this morning and was bugging me out. Luckily I found this post to explain the trick. The area of the missing piece is sufficiently spread out to make the the smaller area seem visually similar to the original area.


30
Sep 13

Will Dan Meyer Ever Stop Being Awesome?

Screen Shot 2013-09-30 at 2.42.42 PM

Modeling is one of those things that we all want to put in our classes, but so many of the pre-made activities stink. But check out this activity that Dan Meyer put together with the help of Desmos.