Math Links for Week Ending Sept. 16th, 2016

I never fail to point out when teachers create and share their stuff, especially when it is clear that it has taken a bit of time or take some skill. For many, creating Explain Everything files can be a chore but when you have people like @MrOrr_Geek, those who might not have the time to create these have a friend in him. In this case, its some resources on some review materials for percent for grade 11 MEL students. There are a couple of files (both dealing with percent). One is a nice re introduction to the notion of percents called Percent Pile Up and the other is a practice file called Random Winner. Of course even though he used it for grade 11 as a review, it would be appropriate all the way down to grade 7.
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P, MAT1L, MAT2L, MEL3E, MEL4E
http://mrorr-isageek.com/percent-pile-up-mel3e-day-5/
http://mrorr-isageek.com/random-winner-game-mel3e-day-6/

One of the nice things about this list that @MathyCathy is sharing of Desmos activities is that it kind of does a better job of the current Desmos search engine. Her list of some of her favourite activities including this nice integer card sort is great. Add the fact that there is a nice rubric for students creating Explain Everything recordings and you've got a nice set of resources here.
Curriculum Tags: All
http://www.mathycathy.com/blog/2016/09/classroom-twitter-hodge-podge/

There is a lot of talk in the educational community about Math Talks. A lot of time we hear about this stuff for elementary but this post from @dsladkey does a great job in telling us how to apply this concept to secondary school. So look at this post for ideas for 10 days of Number Talks for Secondary.
Curriculum Tags: All
http://teachhighschoolmath.blogspot.ca/2016/08/10-days-of-number-talks-for-high.html

I was reminded of this earlier this week but it never gets old. The classic "Verizon Math Fail"

Curriculum Tags: All

https://www.youtube.com/watch?v=ANDk0SWzplo

Not a video but audio on this NPR story on the problems with big data
Curriculum Tags: MDM4U
http://www.npr.org/2016/09/12/493654950/weapons-of-math-destruction-outlines-dangers-of-relying-on-data-analytics

Here's a fun little explanation of how logarithms are useful in a series of @BenOrlin Math with Bad Drawings. Click on the link for all the images.
Curriculum Tags: MHF4U
https://mathwithbaddrawings.com/2016/08/17/how-do-you-master-the-rhythm-of-the-logs/

Of course there is a never ending stream of these on Facebook. I think this is a nice one for patterns but check out the good (and bad) math in the comments
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P
https://www.facebook.com/themafiabossgame/photos/a.411133840755.190522.134523435755/10154099627530756/?type=3&theater

It's funny because it's true

Curriculum Tags: All

https://www.facebook.com/pornscience/photos/a.145146232329411.1073741828.139938556183512/637477606429602/?type=3&theater