Math Links for Week Ending May 20th, 2022

Featured Links

You might like this list of dynamic proofs without words from @TimBrzezinski all done in @Geogebra. He was commenting on the proof without words Tweet seen below. 
Curriculum Tags: All
https://www.geogebra.org/m/NjQaYTCV

Resource Links

Some deep thinking from @JamesTanton on fraction operations in the form of an 80+ page pdf
Curriculum Tags: Gr7, Gr8
https://twitter.com/jamestanton/status/1525851757468758016

Here's my take on the teaching of fractions:https://t.co/dKl8zci6t2 pic.twitter.com/KUvHZUTH5v

— James Tanton (@jamestanton) May 15, 2022

I can't wait to see how Polypad get's merged with @Desmos now that they have merged. In the meant time, I always like the stuff @DavidPoras posts
Curriculum Tags: All
https://twitter.com/davidporas/status/1523277101624926209

Creating double number line diagrams is super easy on Polypad. Here is one example with percentages. Learn more about using the tools on Polypad to explore numbers and fractions at our next free @MathigonOrg webinar this Wed, May 11 at 7 PM EDT. Sign up at https://t.co/8yfLlHHYy8 pic.twitter.com/rwHVUvgLxf

— David Poras (@davidporas) May 8, 2022

Video Links

This is a nice proof without words for the angle sum triangle theorem.
Curriculum Tags: Gr7, Gr8
https://twitter.com/mathladyhazel/status/1524825150436298754

This beautiful visual demonstrates that the sum of the angles in a triangle is 180 degrees. Utterly useful for geometry teachers! 😍 pic.twitter.com/mRjtN2TFrK

— Math Lady Hazel 🇦🇷 (@mathladyhazel) May 12, 2022

Very cool connection between geometry and dance
Curriculum Tags: All
https://twitter.com/mathladyhazel/status/1525915926222323717

When geometry and music come together, this is what happens. 😍 pic.twitter.com/wuRZfzVdDM

— Math Lady Hazel 🇦🇷 (@mathladyhazel) May 15, 2022

Some geometry fun from @Ayliean
Curriculum Tags: All
https://twitter.com/Ayliean/status/1525909381891731456

So so proud to say my 📐Pentile🌸 video
was chosen for the… @BridgesMathart short film festival!!!
Beaming pic.twitter.com/Rp0sjJ0Qxa

— Ayliean (@Ayliean) May 15, 2022

Here's a good, interesting and maybe tough problem that connects Pythagorean Theorem and Circles
Curriculum Tags: MTH1W, MPM2D
https://twitter.com/howie_hua/status/1525206077981089792

New TikTok video: What proportion of the circle is covered by the equilateral triangle? pic.twitter.com/1UasE1xCP2

— Howie Hua (@howie_hua) May 13, 2022

I have done this "trick" for years
Curriculum Tags: All
https://twitter.com/howie_hua/status/1524904214832459776

New TikTok video: "Think of a number" trick pic.twitter.com/2ZYhqvv4TH

— Howie Hua (@howie_hua) May 13, 2022

Image Links

A great fun computation with powers
Curriculum Tags: Gr7, Gr8, MTH1W
https://twitter.com/pickover/status/1525621525423988736

Mathematics.

Shiver in ecstasy. The digits magically reappear.

A kind of humor lurking in the mathematical fabric of reality. pic.twitter.com/eqWpxV0BVy

— Cliff Pickover (@pickover) May 14, 2022