I've always been a big fan of Geometer's Sketchpad. In recent years, it has bounced around different companies as things were bought out from other things. But thanks to a small team of dedicated people, it continues to live on and get better. If you are interested in beta testing the latest version then you can contact Daniel Scher. And if you are looking for some web sketches created with Sketchpad, check out the link for all of mine.
Curriculum Tags: All
http://engaging-math.blogspot.com/p/web-sketches.html
Resource LinksBeta testing for the new Mac Sketchpad continues. Help us make it better! DM me your email if interested in ferreting out bugs. pic.twitter.com/MWetNWriKH— Daniel Scher (@dpscher) February 11, 2020
I always appreciate these little problems that @JamesTanton posts. They are so simple but cause students to think. Don't forget to check the comments for the discussion too.
Curriculum Tags: Gr7, Gr8
https://twitter.com/jamestanton/status/1227026734089814016
The average of two squares numbers can again be a square number. eg Ave(1, 49) = 25. Are there infinitely many examples of such triples?— James Tanton (@jamestanton) February 11, 2020
Opinion Links
Sound advice for any teacher of any subject
Curriculum Tags: All
https://twitter.com/NatBanting/status/1225983120748486656
You lose effectiveness as a teacher the moment you forget how hard it is to learn. https://t.co/kjQ7iRtniT— Nat Banting (@NatBanting) February 8, 2020
" No one is a prophet in their own land " - This quote from @RobertKaplinski really resonated with me because it refers to the fact that sometime those closest to you take your ideas for granted. Click through and read on if you think this sounds familiar.
Curriculum Tag: All
https://robertkaplinsky.com/no-one-is-a-prophet-in-their-own-land/
Video Links
Really. It's two dimensional.
https://twitter.com/GHSMaths/status/1225772856547606528
Having seen this sort of thing in a few places recently, I wanted to make my own version.https://t.co/h7nql1SvMT pic.twitter.com/ktWzniMlaK— Martin Holtham (@GHSMaths) February 7, 2020
Clearly I need to get myself a laser cutter. But until then, this video is a nice visual connection to the circle for radian measure.
Curriculum Tags: MHF4U
https://twitter.com/AlexKontorovich/status/1227247510785314816
What is a “radian” anyway? It’s an equilateral triangle! (With one side curvilinear).— Alex Kontorovich (@AlexKontorovich) February 11, 2020
(With many thanks to @MathHappensOrg!) pic.twitter.com/SBI2TmRoVf
Image Links
I love these nano scale images to show how symmetry and geometry are natural phenomena. Click through the link to see more.
Curriculum Tags: All
https://geometrymatters.tumblr.com/post/176050697919/geometry-at-nano-scale
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