Math Links for Week Ending Apr 14, 2023

Featured Links

I have been adding podcasts and recorded radio shows that feature math in a direct or indirect way for years to this page (seriously, for more than 15 years). This year, one of my sessions at OAME 2023 is on listening to Math based podcasts. I've added a few more and you can see my whole list here:
Curriculum Tags: All
http://ontariomath.blogspot.com/p/podcasts.html

[Page updated] - New podcasts added to my page on #math related podcast, including @debatemathpod @statsandstories and Carry the Twohttps://t.co/VMJB1Oko9v#MathChat #MTBoS #iTeachMath pic.twitter.com/J0KEWEAHza

— David Petro (@davidpetro314) April 9, 2023

Resource Links

You can always count on @DavidKButlerUoA for interesting resources. If you are at all into looking at statistics and data then I would not miss his set(s) of Data cards.
Curriculum Tags: Gr7, Gr8, MBF3C, MAP4C, MDM4U
https://twitter.com/DavidKButlerUoA/status/1645894205439610881

New improved Carnivorous Plant data cards. Enjoy!
(PDF printable and Excel data here: https://t.co/MKFUqZfVhE ) pic.twitter.com/c5av3FfdkL

— David Butler (@DavidKButlerUoA) April 11, 2023

Video Links

What a fun, non mathematical way to show that f(g(x)) does not equal g(f(x))
Curriculum Tags: MCV4U
https://twitter.com/TimBrzezinski/status/1643991740863627264

#RealLife non-math example that illustrates why function composition is not commutative. #MTBoS #ITeachMath pic.twitter.com/igWZyFx8Fl

— Tim Brzezinski (@TimBrzezinski) April 6, 2023

This demystifies why you get a positive when you divide two negatives. IE go back to first principals
Curriculum Tags: Gr7, Gr8, MTH1W
https://twitter.com/howie_hua/status/1645944160640438272

How I would explain why a negative divided by a negative is a positive pic.twitter.com/1AFlRkhJGd

— Howie Hua (@howie_hua) April 12, 2023

It would be cool to have kids find these multiples on their own in Pascal's Triangle
Curriculum Tags: All
https://twitter.com/74WTungsteno/status/1645789158353551362

Multiples of a number in Pascal's Triangle 🔻🔻🔻https://t.co/QBR8Ur1Ygk#math #science #iteachmath #mtbos #visualization #elearning #algebra pic.twitter.com/g0X81ycVIy

— Tungsteno (@74WTungsteno) April 11, 2023

It's always cool when patterns appear where they, at first, don't seem to exist
Curriculum Tags: All
https://twitter.com/pickover/status/1646637677800833026

Viewing reality from different perspectives.

The hidden patterns and structure in the veils of our lives.

I've found this animation in ~12 Reddit groups from 5 years ago. Does anyone know the original source, so we can give credit? Example source: https://t.co/YPCdssPNLP pic.twitter.com/7FSZnoAjhP

— Cliff Pickover (@pickover) April 13, 2023

Image Links

This seems simple enough (in the set up) but it still makes you think about what happens in the long term
Curriculum Tags: MCV4U, MCR3U, MHF4U
https://twitter.com/jamestanton/status/1644652304501547010

[Classic:] Starting with 0, 1 each term of this sequence beyond the second is the arithmetic average of the two terms just before it. Does this sequence seem to approach a specific value in the long run?
(What if start with two arbitrary numbers a and b?) pic.twitter.com/WpJfCcS8Zr

— James Tanton (@jamestanton) April 8, 2023