Math Links for Week Ending June 20, 2025

Featured Links

I am a big fan of dynamic geometry. Whether it be Geometer's Sketchpad, Geogebra or Desmos. So I always appreciate when someone helps students work with any one of those tools. I also have a series of videos that walk you through some constructions. If you don't know a construction is when you build a geometric item that always keeps its properties (like a square). That is when you drag any of the points, it may change size or orientation but not loose the properties of that geometric figure. You can see those here
Curriculum Tags: Gr7, Gr8, MTH1W
https://fawnnguyen.substack.com/p/first-desmos-geometry-lesson

Resource Links

Quadratic formula Bingo
Curriculum Tags: MPM2D, MFM2P, MCR3U, MBF3C, MCF3M
https://mathequalslove.net/quadratic-formula-bingo-game/

NEW Quadratic Formula Bingo Game Activity (features rational, irrational, and imaginary solutions) https://t.co/3GSPMq93bv#mtbos #iteachmath pic.twitter.com/Vzw3aqjoxL

— Sarah Carter (@mathequalslove) June 19, 2025

Is everything we've been saying about the fairness of coins been (partially) wrong? Find out here:
Curriculum Tags: All

https://www.scientificamerican.com/article/scientists-destroy-illusion-that-coin-toss-flips-are-50-50/

Real coin flips are ~49-51 not 50-50 www.scientificamerican.com/article/scie... But you can guarantee equal probability with a simple trick! Flip 2x in a row starting with the same side up. HT->call it H TH->call it T HH,TT->try again (due to von Neumann en.wikipedia.org/wiki/Randomn...) #🧮 🧪 1/4

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— Joshua Grochow (@joshuagrochow.bsky.social) June 20, 2025 at 3:58 PM

Video Links

I never liked the idea of memorizing math facts. I have always thought it was better to internalize them and if you are looking for a good way to do that, try this out
Curriculum Tags: All
https://x.com/howie_hua/status/1934960810138259951

Be stronger with math facts by practicing this: pic.twitter.com/bBL0Tm7T7Y

— Howie Hua (@howie_hua) June 17, 2025

Geometry can definitely be beautiful 
Curriculum Tags: All
https://x.com/pickover/status/1935440630265602257

Mathematics.

Every minute, draw a line from the end of the minute hand, to the end of the hour hand. A wonderful pattern emerges.

By Matt Henderson, @matthen2, used with permission. [math, maths] pic.twitter.com/vj9RdMtLNS

— Cliff Pickover (@pickover) June 18, 2025

Image Links

This week's prompt for #MathPhoto25
Curriculum Tags: All
https://bsky.app/profile/theericklee.bsky.social/post/3lrxp2r4kbk2z

Week 3 of #MathPhoto25 has arrived. Where do you see lines meeting to form corners and #angles? #ITeachMath #MathsToday

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— Erick Lee (@theericklee.bsky.social) June 19, 2025 at 10:06 AM

More power to ya
Curriculum Tags: Gr8, MTH1W
https://bsky.app/profile/curiouspolymath.bsky.social/post/3ls22gniblk2w

#mathsky

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— Pete Wung The Curious Polymath (@curiouspolymath.bsky.social) June 20, 2025 at 8:35 AM

Math Links for Week Ending June 13, 2025

Featured Links

I have always like @StevenStrogatz's writing. Here is some new stuff
Curriculum Tags: All
https://www.nytimes.com/interactive/2025/06/09/science/math-strogatz-taxi-geometry.html

My new #math series in the New York Times, "Math, Revealed," is aimed at everyone, whether you love math or not. Have a look! You can read it here for free without a subscription. https://t.co/M6xe5i1vPq

— Steven Strogatz (@stevenstrogatz) June 9, 2025

Resource Links

Some great resources from @MathEqualsLove
https://x.com/mathequalslove/status/1933289499234050060
https://x.com/mathequalslove/status/1932822439659995182
https://x.com/mathequalslove/status/1933519124791243006

A logic puzzle that uses inequality symbols? Futoshiki puzzles for the win! https://t.co/nj0AYUMhxH#mtbos #iteachmath #puzzlingclassroom pic.twitter.com/Gdto5JCiZJ

— Sarah Carter (@mathequalslove) June 12, 2025

During the last week of school, I had some students ask me if I had any coloring pages they could have. I didn't, but I did add "make mathematical coloring pages" to my to do list for this summer! https://t.co/c0IJv6qmw8#mtbos #iteachmath pic.twitter.com/vNepaWgqKh

— Sarah Carter (@mathequalslove) June 11, 2025

Simplifying Square Roots Bingo - my Algebra 3 students were majorly lacking this skill last year, so I decided to make a game to play at the beginning of the year to review this skill. https://t.co/X0Y2VZpOFV#mtbos #iteachmath pic.twitter.com/cJdU8PDr7h

— Sarah Carter (@mathequalslove) June 13, 2025

Video Links

I love the idea of deriving stuff from something simple you already know
Curriculum Tags: Gr7, Gr8, MTH1W
https://x.com/howie_hua/status/1933184489879982127

Teaching area formulas as how the shape is related to a rectangle helps build conceptual understanding.

Here's how to derive the area formulas of a parallelogram, triangle, trapezoid, kite, regular hexagon, and even a circle from the area formula of a rectangle: pic.twitter.com/QgiawtwJMK

— Howie Hua (@howie_hua) June 12, 2025

Image Links

This week's prompt
Curriculum Tags: All
https://bsky.app/profile/theericklee.bsky.social/post/3lrgcxo3cfk2h

Math Links for Week Ending June 6th, 2025

Featured Links

It's time for #MathPhoto25. Check out the week's theme and post your pic using the hashtag #MathPhoto2.
Curriculum Tags: All
https://bsky.app/profile/theericklee.bsky.social/post/3lquesarx7c2j

It's time to kick off #MathPhoto25 with #squares! Hunt for square shapes and perfect square numbers. Take photos & share on Bluesky using the hashtags #MathPhoto25 and #square. Please add alt text to your photos for increased access. #ITeachMath

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— Erick Lee (@theericklee.bsky.social) June 5, 2025 at 8:59 AM

Resource Links

Not only the prompt, but stuff about the thinking that may be needed to address it.
Curriculum Tags: All
https://denisegaskins.com/2025/05/29/thinking-thursday-quarter-the-square/

Thinking Thursday: Quarter the Square People learn math by playing with ideas. A math journal can be like a science lab book. #homeschooling #mathjournal #letsplaymath #mtbos #iteachmath

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— Denise Gaskins (@denisegaskins.com) May 29, 2025 at 9:01 AM

Video Links

It truly is a hurdle you have to help students overcome.
Curriculum Tags: All
https://x.com/howie_hua/status/1930317676607312031

As a math teacher, it feels like half of my job is building mathematical confidence. Here are some ways I do that: pic.twitter.com/EXHPnd23T1

— Howie Hua (@howie_hua) June 4, 2025

Image Links

This starts with an image prompt but the solution is via video.
Curriculum Tags: Gr8, MTH1W
https://x.com/TimBrzezinski/status/1930593136377549134

Can you solve this? 🤔 Solution: https://t.co/ZjcVrc6DWj pic.twitter.com/SPVsKT8dfH

— Tim Brzezinski (@TimBrzezinski) June 5, 2025