Joanne Simmons

.@DRPS is alerting parents, caregivers, and community members to an emerging online threat involving coordinated groups known as “The Com” (short for the Community). For more info: vimeo.com/1162560368?fl=…

@BarryGarelick @RCsEvilTwin @sandstorms @ToddTruitt76508 Here's a better article from CTV News, published today. ctvnews.ca/canada/article…

I'm attending the 2026 Make Math Moments Virtual Leadership Summit from @makemathmoments #MMMLeadershipSummit2026 RT if you think others will find this helpful 🙌 leadership.makemathmoments.com #MMMLeadershipSummit2026

@MrsJennCarr @pgliljedahl @BTCthinks @NCTM Is there data?

How do we move students from turn taking to collaborating in a #thinkingclassroom? “How students collaborate at whiteboards has the biggest impact on how they perform on standardized testing at the end of the year” -@pgliljedahl @BTCthinks #NCTMATL25 #iteachmath @NCTM

At Holland Bloorview, we believe autism deserves respect and a nuanced and evidence-based understanding. Our experts have responded to the U.S. Government's claims with clarity and care. Read more: bit.ly/3IwBKVB

Great teachers are always open and eager to be learners!

I'm attending the 2025 Make Math Moments Virtual Summit from @makemathmoments #mmmsummit2025 RT if you think others will find this helpful 🙌 summit.makemathmoments.com #mmmsummit2025

Might be embarrassing to say but I didn't realize exponent and power weren't the same thing until around 5 years ago.

@howie_hua For those asking whether this is mathematically important or just semantics, I’d say it’s ‘ Instructionally Important’. Emphasizing the result as the power interrupts the common misconception that we multiply 2x3 to find the ‘answer’. Language matters in math instruction.

Can you visualize fraction division on the number line? If not, give me around 90 seconds to explain it.

It is mathematically impossible to perfectly tune a piano. Here's why.

Really great blog!! Important for intermediate teachers to know! @SWLiteracy

@SciInTheMaking When instruction is guided by cognitive science, high-impact strategies, and the belief that every student is capable, we give them a shot at reaching their pinnacle of success. Thank you @SciInTheMaking this is why we fight for evidence-based instruction #ScienceofLearning

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:

Happy π Day!!

God Damn, @ArleneDickinson is on a roll, much respect for that woman. Sure hope she considers running for public office, Canada needs more Arlene, less @kevinolearytv. From Facebook

The smaller circle rolls inside the bigger circle, while the four points actually just move in a straight line. 😲 [shorturl.at/e7reI]

A straight forward explanation of the Pythagorean theorem.

The sum of the interior angles of a triangle is always 180°: a visualization. x.com/i/status/17668…

@TheMathGuru Would love to read your book. Thank you!

If you teach preservice teachers & want to help those teachers learn more about how to heal math anxiety & trauma (and prevent causing it in the first place!), I want to send you a copy of my new book! Hit me up👇