## Friday, September 5, 2014

### Math Links for Week Ending Sept. 5th, 2014

I think it's important for students to hear some of the stories of math. I like this one because it is about someone who most people would not have heard about but who was pivotal in the space program at the same time as breaking down race and gender barriers. Watch a series of videos about Katherine G. Johnson here
Curriculum Tags: All
http://www.makers.com/katherine-g-johnson
Solving equations is not necessarily the most engaging of activities. Of course good math students love it because they can show that they are so analytical. But for the majority of students who struggle, changing things up a bit can at least engage them a bit so that they will do the work. Here the questions are on the wheels and the answers on the clothes pins and the clothes pins and wheels each have different sets of symbols. Once student clip the clothes pins where they think they go then they flip it over to reveal the pairs of symbols. An answer key then reveals if each pair is correct.
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P

XKCD's What if blog always does something to employ calculations with large numbers. In this instalment the question that is asked is "What is the most expensive thing you could fill a shoe box with". The most interesting part of this is that the choice was not gold or some other precious metal but 64Gb SD memory cards. But not empty memory cards but those filled with \$1 songs or software. So this could easily turn into a rate question of some sort (and maybe couple it with volume).
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P
http://what-if.xkcd.com/108/

When I saw this I immediately loved it. Show a graph and ask "Name that Data". That is, let students use the characteristics of the graph to try to deduce what it is about. This could work with any data management unit. On this blog they don't always do this but it seems to be a recurring feature. I am not suggesting that this graph is the one you should use but more the idea of this type of activity. You might want to have several graphs and then several sets of variables and have them match it. Thanks to @globeandtims for this one
Curriculum Tags: Gr7, Gr8, MBF3C, MDM4U, MAP4C
http://www.washingtonpost.com/blogs/wonkblog/wp/2014/08/22/name-that-data-6

A simple fraction game that you play with standard playing cards. Pair students off and they each draw two cards. They then have to create the fraction that is closest but not equal to a predetermined number. For more details follow the link below.
Curriculum Tags: Gr7, Gr8
http://letsplaymath.net/2014/08/06/fraction-game-my-closest-neighbor/
As it turns out, we start out being pretty good at understanding probability. Maybe it's what we do to kids in school that makes them worse. In this article the researchers demonstrate that toddlers have a knack for probability.
Curriculum Tags: All
http://www.sciencedaily.com/releases/2014/08/140825123315.htm

Not necessarily a really mathematical application for education here but this is Numberphile's take on the Ice Bucket Challenge
Curriculum Tags: All