When I’m not math-ing, I’m winning NHL94 world championships 🏆🏆🏆 @nhl94.bsky.social

I wrote up an experience using a slow reveal graph with a fourth grade class for Edutopia. ✨

"Harvard can't use race as a factor in admissions, but ICE can use race as a factor in detentions" is a retrenchment essentially to a pre-Civil War understanding of the Constitution. It's vanishingly few steps removed from "Latinos have no rights which the white man is bound to respect."

Financial literacy education is most plagued by the relevancy issue. 13-year-olds just don’t see credit card debt as being relevant. Also, Ontario students rank amongst the highest in the world in financial literacy. So what problem is this test trying to solve? www.cbc.ca/news/canada/...

[GIFT ARTICLE] Mathematician Eugenia Chang explores the choices we make to determine if two things — numbers, shapes, words and even people — are equal. www.nytimes.com/2025/08/30/s... #iteachmath

🧵 New #openaccess pub just dropped: "Teachers' subjectivities in responsive instruction: When ambitious instruction encounters challenging teaching situations" by me, Yeliz Günal Aggül, Shuqin Li, and Christine Hood #AcademicSky #EduSky link.springer.com/article/10.1...

The Racial Justice in Early Math project [Image of child's arm and some red and white counters on a desktop]

Great thread about the role of motivation/connection/interest in cognitive load theory . . . #ITeachMath #MathEd

Solid math teaching really is a strategic blend of inquiry for sense-making & agency w/ explicit instruction for skill-building & fluency. The key is knowing how concepts progress & how students in the class learn best. Inclusion in math ed needs BOTH approaches. www.edweek.org/teaching-lea...

MAGAs from Oklahoma need to worry a little less about leftist boogeyman teachers and a crap ton more about actually teaching kids how to read and do math. This is just bizarre and embarrassing. apnews.com/article/okla...

People catch flack for changing their opinions when new facts become available. As if changing one’s position is a sign of weakness. But changing an opinion should be seen as a sign of growth and humility. If you’re a leader who asks others to change their minds, be ready to model it yourself.

Students using AI to complete work is a direct reflection on the school system’s focus on products & end results. If we want students to form opinions, analyze information, and really think, then THAT needs to be what we look for. The PROCESS needs to take centre stage www.cbc.ca/news/canada/...

Mark Peterson’s black-and-white images of ICE agents evoke film noir and the urban-crime photography of the 1930s and ’40s. “If someone is doing everything right, and then they still get detained, it’s a crime scene,” he said.

Every American who’s been unlawfully detained under this immigration dragnet should organize a class-action lawsuit. Police have to pay for this catch-and-release racial profiling. My heart goes out to communities that must be living in a constant state of fear. www.miamiherald.com/news/local/i...

Congratulations to my TDSB math teaching colleague and friend, Sam Garrison, on swimming across the freakin’ English Channel!!! Sam trained for years and raised funds for the Daily Bread Food Bank. Read/listen to his story: vancouver.citynews.ca/2025/08/08/t...

The mathematician John Venn was born on this day in 1834. To commemorate the occasion, here’s a poem in the form of a Venn diagram.

Hot take: Yes, teachers need to learn how to use AI and how to leverage it to help students learn even better. But, policies that already exist to support and regulate technology use in schools (e.g. laptops, cell phones, email) apply to AI. Nothing is new. www.cbc.ca/news/educati...

Student identities are NOT “politics”. Students experience the real world - good, bad & ugly - and schools have a duty to foster belonging for ALL identities & experiences www.thestar.com/news/gta/wha... Vague ‘no politics’ edict from province leaves some worried. #onpoli #ongov #education

Affirming human rights is absolutely within teachers’ roles in classrooms, whether it’s addressing antisemitism, Islamophobia or other forms of discrimination. Because if schools don’t, then kids will seek out discourse online & we already know how that’ll turn out. www.thestar.com/news/gta/wha...

New post: Permission to Go Off Script Building Thinking Classrooms practices are powerful—but they’re not all-or-nothing fawnnguyen.substack.com/p/permission...

Friends at @wr-dsb.bsky.social created a terrific video in support of destreaming and the real positive impacts that it is already making on students and communities. www.youtube.com/watch?v=mmwU...

Gunning for the three-peat! Registration for the NHL94 World Championship opens today: www.eventbrite.ca/e/king-of-94... @nhl94.bsky.social

Happy summer, #OntEd!

On National #IndigenousPeoplesDay, we honour the enduring histories, cultures, and contributions of First Nations, Inuit, and Métis, and we reaffirm our partnership in reconciliation.

For 2 summers, I worked on the Blue Jays grounds crew & tended the visitors’ bullpen mound. After a game, then Nationals manager & hall-of-famer Frank Robinson complained about my mound. Umpires found that it was fine, but I was left shook. I feel for the A’s crew… thescore.com/mlb/news/329...

Analyzing students' answers on EQAO sample questions from a google form to determine any common misconceptions & to help create small group instruction to work on specific topics with certain students or with the whole class. @mrjasonto.com @mervisalo.bsky.social

We know what Canada has, and we’re going to build on it.

Just unimaginable tragedies for families at Walkerton District Community School and Canadian Martyrs Catholic School. Young people leaving this Earth far too soon. My heart goes out to everyone 💔

5/25/25 Happy Palindrome Day!

George Floyd’s death changed the world. Despite the backsliding of diversity, equity, and inclusion in parts of the world, the impact of May 25, 2020 continues. www.npr.org/2025/05/21/n...

The Leafs were atrocious when it mattered most. Blow it all up.

Politicians During Mental Health Awareness Month

Implementing @tdsbmath.bsky.social “Shaping Algebraic Reasoning” PD with our Math Learning Partner schools & teachers. As we enter our linear relations unit, gr 9 students are building patterns➡️equations➡️graphs. @mrjasonto.com @mervisalo.bsky.social

Some screen grabs of my OAME presentation, “Let’s Get This Straight: Making Sense of the Explicit vs. Inquiry-based Instruction Discourse and What it Means for your Math Teaching.” The audience created word clouds, shared ideas, answered math questions & sang a little Bon Jovi. All in a day’s work.

By a single vote!!! www.cbc.ca/news/politic...

Wait wait wait, are you saying reasoning is important in endeavors that require reasoning??? Another aspect why the systematic dismantling of liberal arts education is so tragic.

Dyscalculia is just as common as dyslexia, studies suggest. But it’s been researched less and has fewer resources, so many teachers still need tools to support students. This guide is a good place to start. ⬇️ #dyscalculia #EduSky #ITeachMath

We just released a new video on how teacher stereotypes and expectations can impact a student’s math placement and feedback–and what teachers can do about it! Check it out below and let us know what you can do about bias in your classroom. Watch now: youtu.be/g_sYNXvN2gQ

As I have said: Canadians should not travel to the United States unless they have to

Carney is basically telling the US that “we are never ever ever getting back together” and I’m loving it.

What a releaf.

Asian Heritage Month will no doubt involve many celebrations of Asian culture in schools across Canada. However, let's take this month to also learn about the history & resiliency of Asians in Canada & how to address anti-Asian racism so that ALL students thrive: www.tdsb.on.ca/Portals/0/do...

Beautiful cherry blossoms outside George S. Henry Academy @tdsb.on.ca

Thinking about all my Filipino brethren out west right now 🙏🏽

On being called DEI and why it isn’t the burn they think it is

Had a great time w/secondary math teachers at Northview Heights talking algebra tiles, formative assessments, small group instruction, tracking student data, polypad and desmos. Grateful for the support from admin & dept in continuing professional development. @mrjasonto.com @tdsbmath.bsky.social

honestly it feels more urgent than ever that we reframe conversations about students with disabilities through asset-based and critical lenses, and mathematics class is a powerful site for that reframing #SPEDsky #iteachmath #academicsky

Happy Easter and early election time! Make sure to go out and vote 🗳️

How we collectively advance math learning is to account for all methodologies that make up the evidence base. RCTs or case studies alone don’t show how freakin’ complicated math teaching is. Both camps (yes, they’re still separate) need to listen more to each other. This episode helps with that 👏🏽

The 2025 Polypad Art and Music Contest has launched! We invite students from around the world to submit their best creations by June 13, 2025. Additionally, for the first time ever, we’re inviting educators to join the fun! Learn more at polypad.amplify.com/contest