Math Links for Week Ending Sept. 29th, 2017

To introduce the concept of mixed radicals, rather than just tell students, you might consider this short card sort. Students are give several cards to sort into groups that are equal in value but different in form. You can do this as a physical card sort or if you have the tech, you might use the Desmos cards sort version.
Curriculum Tags: MCR3U
http://engaging-math.blogspot.ca/2017/09/mixed-radical-card-sort.html

From the creator of visualpatterns.org, @fawnpnguyen,  comes a new site between2numbers.com. On this site you are given pairs of images and asked to compare them somehow. Proportional reasoning skills are the main idea here and eventually she expects to have enough so you could do one per week.
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P, MAT1L, MAT2L
http://fawnnguyen.com/between-2-numbers/

I like simple activities and this integer bingo is a perfect example of one from @vaslona. Students are given a 4x4 bingo card (either generated or made on their own) then pingpong balls are drawn and added together to fill the card.
Curriculum Tags: Gr7, Gr8
https://logsandreflections.wordpress.com/2017/09/09/integer-bingo/

We are all bad at probability. In this article @fivethirtyeight goes over what the media often gets wrong.
Curriculum Tags: MDM4U
https://fivethirtyeight.com/features/the-media-has-a-probability-problem/

Some fun with doubling, halving and factoring from John Oliver via @ChrisHunter36. Check the post out for more details on using this in class.
Curriculum Tags: Gr7, Gr8
https://reflectionsinthewhy.wordpress.com/2017/09/11/halving-doubling-very-fun-to-play-with/



A brief history of banned numbers. Who knew?
Curriculum Tags: All
https://ed.ted.com/lessons/a-brief-history-of-banned-numbers-alessandra-king

A new one from @Jstevens009 on Would you Rather
Curriculum Tags: MCF3M, MBF3C, MCR3U
http://www.wouldyourathermath.com/would-you-rather-65/

Here's a neat little problem to practice problem solving in the context of rectangles.
Curriculum Tags: Gr7
https://fivethirtyeight.com/features/how-do-you-like-these-rectangles/

Now that's a cheat sheet and a reminder of why units are important.
Curriculum Tags: All
https://www.today.com/news/college-student-s-giant-cheat-sheet-allowed-professor-t116623

First test day of the semester and as always, I allow a 3x5 notecard. Today, a student shows up with this. Sure enough, it is 3x5... feet. As precise as I am, apparently I never specified inches and therefore yes, it was allowed. Well played and lesson learned for me. @elijahbowen_ #aacc #audacious #professorlife #accounting #winner

A post shared by Reb Beatty (@rebbeatty) on Sep 19, 2017 at 1:24pm PDT

Ok some of these are funny. Check them all out below. Thanks to @saravdwerf for this one
Curriculum tags: All
https://www.buzzfeed.com/sarahaspler/people-our-math-textbooks-warned-us-about?utm_term=.fhVOGJKGQ#.od2rWZnWP