I really like this approach to the conceptual nature of proportional reasoning. Using images that are either proportionally sized or skewed in one direction is a good way to help students see the meaning of what proportion is. This is just part of a 11 video series created by @ChrisHunter36 and @314PiMan for parents of students in grade 8&9 (in BC). Check out the blog post about the proportional reasoning activity here and get all the other videos at the link below.Curriculum Tags: Gr8, MPM1D, MFM1P
https://vimeo.com/showcase/6244430
Resource Links
It never occurred to me until I saw this post but the Fibonacci numbers are a great way to convert between km and miles. Given that the ratio of successive Fibonacci numbers is 1.618 and the number of km in a mile is 1.609 means that successive Fibonacci numbers correspond to miles/km conversions. This is a great tool for runners as it was pointed out in this article from Runners Magazine. Thanks to @Robin_Grondin for pointing this out.Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P, MFM2P
https://runningmagazine.ca/the-scene/fibonacci-sequence-makes-a-handy-miles-to-kilometres-converter/
Opinion Links
I like the way that @MarkChubb3 makes us consider ideas on Twitter with a single prompt. Here he talks about data driven tech programs for math. Be sure to read the entire thread and the comments that follow (and join the discussion, yourself).
Curriculum Tags: All
https://twitter.com/MarkChubb3/status/1199161266734075906
1/— Mark Chubb (@MarkChubb3) November 26, 2019
I am frustrated with many of the math tech programs out there that say they are data-driven. My issues:
Video Links
One of the things I like a lot on this spiralled animation from @GHSMaths, is how few lines of equations are required in Desmos. Check out the link to the actual graph to see for yourself
Curriculum Tags: All
https://twitter.com/GHSMaths/status/1197875521960521732
Image LinksIs the blue one expanding and the red one shrinking, or are they both rotating?https://t.co/TrnCJb1U1P#mathart pic.twitter.com/EwYF7d19bO— Martin Holtham (@GHSMaths) November 22, 2019
It's no surprise that I am a big fan of @MonaChalabi and I really love this representation of what marginal tax looks like.
Curriculum Tags: MDM4U
https://www.instagram.com/p/B5NzyjfFGNY/
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