Math Links for Week Ending Mar. 3rd, 2017

Recently @pgliljedahl spoke to teachers in the Ottawa area and I saw some recaps show up on Twitter. For a detailed recap, don't miss @mathtans' play by play of the whole talk. I specifically like the beginning with the descriptions of the slow start with using vertical surfaces. Also @Laura_Wheeler managed a couple of sketchnotes too. We have been working on making thinking classrooms down here to so it was great to see these resources.
Curriculum Tags: All
https://mathiex.blogspot.ca/2017/02/feb-pd-peter-liljedahl.html
https://mslwheeler.wordpress.com/2017/02/27/studenting-visibly-random-groups-sketchnotes-thinkingclassroom/

I love it when you go deep on a topic. In this case it's optimizing cans from @DataGenetics. With some of the data here you could probably connect it to grade 9 optimization but they go deeper and take it all the way to the calculus level. And as a bonus, here's a discussion of reasons why packaging is the way it is. Thanks to Janet Jacques for this one.
Curriculum Tags: MCV4U, MPM1D, MFM1P
http://www.datagenetics.com/blog/august12014/index.html

If you are in Ontario you've heard of the Renewed Math Strategy. Well, they have a new website for all kinds of math goodies. Check it out.
Curriculum Tags: All
http://rms.thelearningexchange.ca/

Having done a couple of Ignites myself, I am always happy to highlight a good one. It's from a couple of years ago but I hadn't seen it before. I like this one from @robertkaplinsky on productive struggle. It's always hard to get everything you want said when the slides are flying by at 15s a pop but he does a good job of highlighting the important points. I have used the bench press analogy myself many times.
Curriculum Tags: All
http://robertkaplinsky.com/my-ignite-talk-on-productive-struggle/

And when that video came up, another of my favourite speakers did. Here is @Marian_Small from the same session
Curriculum Tags: All
https://www.youtube.com/watch?v=Wbl2kzWcYt8

A new three act task from @mathletepearce using a great image to provoke questions. Good for multiplication and proportional reasoning.
Curriculum Tags: Gr7, Gr8, MFM1P, MPM1D
https://tapintoteenminds.com/3act-math/donut-delight/

Some neat geometric architecture pointed out by @MrHonner
Curriculum Tags: Gr7, Gr8
http://mrhonner.com/archives/17508