Math Links for Week Ending July 31st, 2015

It is nice to see that Desmos is not sitting on their laurels. You might have seen me mention some of the work that @mathycathy & @mjfenton did when they made some. But now Desmos has created their Activity Builder making it possible to to create your own interactive activities that students can then access via your teacher account at teacher.desmos.com on student.desmos.com. Thanks to @marybourassa for this one. 

Curriculum Tags: MPM1D, MFM1P, MPM2D, MFM2P, MBF3C, MCF3M, MCR3U, MAP4C, MHF4U, MCT4C, MCV4U

http://blog.desmos.com/post/125534134492/activity-builder 

Need a place for quality activities to help you teach math? Look no further than the newly created repository of activities arising from the MTBoS.This was the products of a session run by @marybourassa and @alexoverwijk of this year's Twitter Math Camp. On this site, anyone who has created an activity can post it using this link http://bit.ly/MTBoSactivity But to see all of the activities submitted so far, use the link below.
http://bit.ly/MTBoSbank

Here is a neat little way to make transformations of functions tactile. Use pipe cleaners
Curriculum Tags: MPM2D, MCR3U, MBF3C, MCF3M, MHF4U
https://www.youtube.com/watch?v=a7HRlcz-jtM

How many chess games are there? Well we can't tell exactly but there are a lot. Numberphile has tried to quantify the number and in the process touch on topics like patterning, powers and exponents and combinatorics. So check it out
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P, MDM4U
https://www.youtube.com/watch?v=Km024eldY1A

One of those "funny" posts about how people are bad at math. Check out all 23 examples at the link below. Thanks to Mark Esping for this one
Curriculum Tags: All
http://www.buzzfeed.com/lyapalater/im-good-with-words#.puNn8bx7X