Math Links for Week Ending Jan 13th, 2023

Featured Links

This is a nice tweak to a common teaching trope
Curriculum Tags: All
https://twitter.com/howie_hua/status/1613698713314283520

Teaching tip: Rather than asking "Do you have any questions?" consider saying... pic.twitter.com/WRGuX4stEP

— Howie Hua (@howie_hua) January 13, 2023

Resource Links

I will never stop posting the dynamic @OpenMiddle questions that @TimBrzezinski continues to make. So nice. 
Curriculum Tags: MPM2D
https://twitter.com/TimBrzezinski/status/1613548757345263616

Do your Ss confuse the concepts of distance, midpoint, & slope? If so, this @openmiddle exercise can help address their inaccurate conceptions as they create. https://t.co/LZa2Neay5T & https://t.co/orhqAi8acI @robertkaplinsky #MTBoS #ITeachMath #algebra #mathchat #whyopenmiddle pic.twitter.com/IB6v75PILm

— Tim Brzezinski (@TimBrzezinski) January 12, 2023

Video Links

Seriously, what the heck is going here?
Curriculum Tags: All
https://twitter.com/mathladyhazel/status/1613200808077676548

These boxes are NOT MOVING. I see but I don't believe it! 😲 pic.twitter.com/VfwLWre80k

— Math Lady Hazel 🇦🇷 (@mathladyhazel) January 11, 2023

A circle rolling on top of a circle on top of a circle...., as it turns out, creates a fractal

Curriculum Tags: All
https://twitter.com/Rainmaker1973/status/1613165884758949888

Fractal spirographs are generated by tracking a series of circles rotating around each other

[📹 PantheraLeo1359531: https://t.co/cZzcJ0MHNX] pic.twitter.com/EAysXjbT7W

— Massimo (@Rainmaker1973) January 11, 2023

I have done this "trick" with numbers close to 50 before. Regardless, the most important part is that we show why it works and let students know that it's not a trick at all. 
Curriculum Tags: MPM2D, MFM2P

https://twitter.com/howie_hua/status/1613342108932530176

New TikTok video: Want to know how to mentally calculate big squares like 97² and 88²? If so, watch this video. pic.twitter.com/8R4KavTz30

— Howie Hua (@howie_hua) January 12, 2023

Image Links

At first this may seem like there isn't enough information but then look closer at the equal angles in the top right corner. Nothing a little trig might help.
Curriculum Tags: MPM2D, MCR3U
https://twitter.com/dment37/status/1613439977626685441

Blue area? @geogebra #geogebra pic.twitter.com/5rmNEL55xW

— Daniel Mentrard (@dment37) January 12, 2023

Look, it's a mashup of @Howie_Hua and @BenOrlin
Curriculum Tags: All
https://twitter.com/howie_hua/status/1613278021447995393

Math joke collaboration with @benorlin pic.twitter.com/RSbt1i2ciN

— Howie Hua (@howie_hua) January 11, 2023