Math Links for Week Ending May 29th, 2020

Featured Links
Perhaps this is a bit self indulgent but I really like this vector equations activity that @SheriWalker72 made based on one of my old activities to intro vector equations. I like it because first of all, I don't think we have enough activities to support vector equations and secondly, she does a lot of nice self checking stuff (which is hard to do with straight algebraic representations). There is a lot of good practice with moving from vector to scalar to parametric to symmetric equations as well.
Curriculum Tags: MCV4U
https://teacher.desmos.com/activitybuilder/custom/5ecc2e10d9e6692d1366bc5e

Resource Links
Some more work from @Christophe_Sew, this time it's infinite examples and infinite practice for kids to try out with the product rule.
Curriculum Tags: MCV4U
https://teacher.desmos.com/activitybuilder/custom/5ec91e85c002ff2d8b01d721

Product Rule Lesson [via @Desmos ]

✅ Self-checking
✅ Randomly generated examples
✅ Randomly generated questions
✅ UNLIMITED practice questionshttps://t.co/8wQSqa9dYk@davidpetro314 @jreulbach @Satvind99716093 #iteachmath #MTBoS #Calculus #maths #Mathematics #ibmath pic.twitter.com/3aTrXJs8Gw

— Mr. S (@Christophe_Sew) May 26, 2020

And one of the things I love about the Twitter community is how we all use each other for inspiration and jumping off points. In this case, @TGoesh used the work of @Christophe_Sew to create some infinite practice for derivatives of trig functions with product, chain and quotient rule.
Curriculum Tags: MCV4U
https://teacher.desmos.com/activitybuilder/custom/5ecd9fb300674c0dc1a1e40d

This is a neat little card sort activity based on a data set about where each letter appears in various words. This would be a great way to just start to introduce the idea of displaying data and also help to facilitate discussions on why the data looks the way it does. Click on the link to get the downloadables ready to be cut up thanks to @GeoffKrall.
Curriculum Tags: MDM4U
https://emergentmath.com/2020/05/26/letter-distribution-a-matching-activity/


Video Links
More fractal stuff from @GHSMaths.
Curriculum Tags: All
https://twitter.com/GHSMaths/status/1266308301299617792

Replace each hexagon with a ring of six smaller hexagons.

Eventually, every iteration of the Koch snowflake is generated in the negative space.

At each stage, all previous iterations remain visible at a smaller scale.https://t.co/qZ1w0jGCe6 pic.twitter.com/5Tnt7KPZFO

— Martin Holtham (@GHSMaths) May 29, 2020

Image Links
In all of this Covid data, I was relieved to finally see some other data. In this case, it's why catchers are the on the endangered list.
Curriculum Tags: MDM4U
https://fivethirtyeight.com/features/catcher-is-baseballs-most-endangered-position/