Math Links for Week Ending Oct. 6th, 2017

I have added a new page to this blog. I called it Notable Links. It compiles many of the teacher generated sites (Estimation 180, WODB etc) as well as many teacher blogs where they often share resources. It's by no means a complete list and I am sure I will miss some but I wanted to have a running list of the best stuff somewhere (if only for me)
Curriculum Tags: All
http://ontariomath.blogspot.ca/p/notable-links.html

A few Desmos activities. This first one is a very cool calculus activity originally from @sergeballif but edited by @nemoyatpeace. Here students first start to estimate the value of the slope of the tangent of a function at a point and they get points for how close they are to the actual value and then it turns into a tutorial on the mean value theorem. Nicely done.
Curriculum Tags: MCV4U
https://teacher.desmos.com/activitybuilder/custom/59b9034cd89ded07ddf04552

I also like this one from @klockmath on conversion to and from mixed to improper fractions. It's very dynamic and has some neat coding in the background to make it work. Well done. Thanks to @Jstevens009 for pointing this one out
Curriculum Tags: Gr7, Gr8
https://teacher.desmos.com/activitybuilder/custom/59cc4518f54ea23b05c24a85

Then, after creeping @Klockmath's Twitter feed I also found this gem for introducing fractions conceptually. Some great tools here to understand fractions on this one.
Curriculum Tags: Gr7, Gr8
https://teacher.desmos.com/activitybuilder/custom/59c06a9eea1a8c0add5a0472

In this post @msbjacobs does a great job analyzing student work under the guise of interesting methods to solve the same solutions. In this case the catalyst was some student work from a student new to our country.
Curriculum Tags:All
http://themathguy.blogspot.ca/2017/09/more-than-one-way-to-crack-egg.html

If you haven't heard, this coming week is Global Math Week. The goal is to get over 1 million students engaging in joyous math. In this case, it is through the activity called Exploding dots (https://www.explodingdots.org/). It's a cool activity that starts with what looks like code breaking and the payoff is that the math can take you from elementary all the way to polynomials in grade 12. You can watch the intro video below or click on the link below from @mathletepearce for a nice summary and register your class to participate.
Curriculum Tags: All
https://tapintoteenminds.com/exploding-dots/

Are spinners still a thing? If they are in your class and you are teaching linear, quadratic or trig functions then you might like these resources from @harrytomalley. Follow the link for all the handouts. Thanks to @jocedage for pointing this one out.
Curriculum Tags: MPM1D, MFM1P, MPM2D, MFM2P
http://www.harryomalley.com/spinnermath/

Any time you can intrigue students with an image or video that makes them think then I think it's a good thing. So start with this image of a large Snicker bar and go to town. In this case @YummyMath has your resources around this image at the link below.
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P
https://www.yummymath.com/2017/big-snickers-bar/