Curriculum Tags: Gr7, Gr8, MBF3C, MDM4U, MAP4C

http://found-data.blogspot.ca/2017/06/five-thirty-eights-pile-of-data.html

I updated a couple of GSP sketches to WebSketches this week on sine and cosine law. In both cases you start with a sketch to have students verify that each law works (with random triangles) then each has two pages of randomly generated triangles. One page where you solve for a side length and the other where you solve for an angle.

Curriculum Tags: MPM2D, MBF3C

http://engaging-math.blogspot.ca/p/web-sketches.html

I sometimes don't think we give probability the treatment that it deserves. However, it is probably one of the few math skills that students need to be masterful with in order to navigate the world in a safe way. So with that I like this lesson that @MarkChubb3 lays out using this 3 player probability using dice rolling. Simple but it connects experimental and theoretical probability nicely.

Curriculum Tags: Gr7, Gr8, MBF3C, MEL3E

https://buildingmathematicians.wordpress.com/2018/02/08/from-experimental-to-theoretical-probability-sample-lesson/

I contend that when you are learning the multiplication tables, 7x8 is one of the hardest ones to learn. @JamesTanton uses that example to talk about understanding vs rote mathematics.

Curriculum Tags: All

https://medium.com/@jamestanton/7-times-8-is-54-the-call-for-math-memorization-950abcfc1fc7

Some more work from @mathletepearce on his @mathisvisual site on integer multiplication. I made a few suggestions and he expanded on them to make this video and the accompanying images. Check out the site.

Curriculum Tags: Gr8

http://mathisvisual.com/more-integer-multiplication/

I was at the @OMCAMath Retreat and the speaker was @pgliljedahl. He started with this neat problem.

Curriculum Tags: Gr8, MPM1D, MFM1P

https://twitter.com/davidpetro314/status/964209790795833344

What is the volume of the water that will end up in the smaller glass if it is slowly pushed into the larger glass ( bottom first)? Via @pgliljedahl at the @OMCAmath retreat #mathchat #thinkingclassroom pic.twitter.com/2HfMMO51Xv— David Petro (@davidpetro314) February 15, 2018

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