Jason To | 杜澤信 @mrjasonto.com · 08/09/2026Happy Day 1, teachers! There are lots of changes and challenges this year, but think of every challenge as a new opportunity. At least that’s my mindset going into it all. Enjoy meeting students today and have a hope you have a great start to the year. 010
Jason To | 杜澤信 @mrjasonto.com · 11/05/2026Ontario elementary teachers can exercise judgement, but need more time to collaborate and also strengthen the consolidation portion of math learning. “Chinese and Canadian approaches to math teaching have a lot to learn from each other.” theconversation.com/chinese-and-...theconversation.comChinese and Canadian approaches to math teaching have a lot to learn from each otherA study connecting teachers from Chongqing, China and Ontario reveals strengths in Ontario mathematics education, and what could contribute to ongoing improvement. 020
Jason To | 杜澤信 @mrjasonto.com · 02/05/2026This year's @oamelearns.bsky.social conference was amazing! It’s so great to connect with & learn from math teachers, consultants, and coordinators from across Ontario. I now know more about the kindergarten play continuum! Getting to chat with @pwharris.bsky.social was icing on the cake 🍰 061
Jason To | 杜澤信 @mrjasonto.com · 30/04/2026It was a pleasure earlier this week meeting with other members of the LD@School/TA@l’école Advisory Committee of the Learning Disabilities Association of Ontario. Great brainstorming about system change, resource development, pedagogy, and coalition building to support students with LD & ADHD. 030
Jason To | 杜澤信 @mrjasonto.com · 17/04/2026Grading attendance and participation seems incongruent with the Ontario government's stance on meritocracy, will fuel the flames of grade inflation, and will likely be subject to racial bias. "A" for Effort: Why Grading Attendance and Participation Might Actually Make Things Worsemrjasonto.com“A” for Effort: Why Grading Attendance and Participation Might Actually Make Things WorseRecently, the Ministry of Education announced a significant shift in how teachers will evaluate high school students: attendance and participation will soon be incorporated into final grades. Specifically, for Grades 9 and 10 students, 15% of their grade will be devoted to attendance and participation, with 10% for students in Grades 11 and 12. Education Minister Paul Calandra stated that this idea came exclusively from his engagement with teachers. 020
Reposted by Jason To | 杜澤信Natalya Chertok @infiniteach.bsky.social · 27/03/2026Greenwood S.S. hosts their annual Math Carnival where students enjoy a variety of math games and puzzles like “Guess My Pattern Rule” ! Great to see math learning and engagement happening as the schools Math Learning Partner! @mrjasonto.com @tdsbmath.bsky.social 031
Reposted by Jason To | 杜澤信Tiffany @tleeteach.bsky.social · 13/03/2026Including small group instruction in our 75 minute class time is possible! Lesson➡️formative assessment on lesson➡️analyze student data➡️small group instruction as other students work on check your understanding. @mrjasonto.com @tdsbmath.bsky.social 031
Reposted by Jason To | 杜澤信Codruta Colceriu @codruc.bsky.social · 25/02/2026Thank you to all Parents who joined us today @tdsb.on.ca Sheppard PS to learn about the various strategies for adding numbers & ways in which they help to build strong number sense. So nice to see parents work together with their children to solve math problems! @tdsbmath.bsky.social @mrjasonto.com 011
Reposted by Jason To | 杜澤信Tiffany @tleeteach.bsky.social · 20/02/2026Before jumping straight to the algorithm and you show the visual representation of converting mixed fractions to improper fractions, vice versa, and they yell out “Ooooh, that makes sense!!” 🥹🤩proud of these students! @mrjasonto.com @tdsbmath.bsky.social 031
Jason To | 杜澤信 @mrjasonto.com · 11/02/2026My heart breaks for the Tumbler Ridge community. All of Canada mourns for the victims of this immense tragedy. 010
Reposted by Jason To | 杜澤信Codruta Colceriu @codruc.bsky.social · 04/02/2026Today, teachers @tdsb.on.ca Stanley PS had a Math PLC focusing on High Impact Instructional Practices. The format: observing 2 co-taught lessons (Gr. 2/3&3/4). The outcome: rich learning experience for teachers in classrooms with students deeply engaged in math! @tdsbmath.bsky.social @mrjasonto.com 021
Reposted by Jason To | 杜澤信Charlotte Clymer @charlotteclymer.bsky.social · 20/01/2026God bless Canadian Prime Minister Mark Carney for saying what needed to be said in his Davos speech. 271556177
Jason To | 杜澤信 @mrjasonto.com · 20/01/2026If you haven’t listened to the full speech, do it right now. It’s bold, pragmatic, yet still values-driven. Canada had a good day today on the world stage. This speech is one for the ages. www.cbc.ca/news/politic...cbc.ca'The old order is not coming back,' Carney says in provocative speech at Davos | CBC NewsPrime Minister Mark Carney delivered a frank assessment of how he views the world in a provocative speech in Davos, Switzerland, on Tuesday, where he said the longstanding U.S.-led, rules-based intern... 041
Jason To | 杜澤信 @mrjasonto.com · 19/01/2026Bob was a good man and left a mark on so many people. My condolences to his family and friends. www.cbc.ca/news/canada/...cbc.caToronto basketball coach Bob Maydo remembered by former students, family, friends | CBC NewsA friend, father figure and mentor. That’s just some of the ways family, students and former players are choosing to remember Toronto high school basketball coach Robert ‘Bob’ Maydo. 020
Jason To | 杜澤信 @mrjasonto.com · 23/11/2025This is a great history lesson on how the Government of Ontario has reformed school boards since the 1960s to increase efficiency and offer more services, but also to exert more control on local schools. Bill 33 appears to be the next stage in this evolution. www.tvo.org/article/how-...tvo.orgTVO Today | Current Affairs Journalism, Documentaries and Podcasts 031
Jason To | 杜澤信 @mrjasonto.com · 22/11/2025The annual nature of EQAO assessments promotes quick-fixes that don’t necessarily have sustainability in mind. Large-scale improvements that really matter take time to implement. www.cbc.ca/news/canada/...cbc.caTeachers, politicians call on the province to release EQAO results | CBC NewsEducators and politicians are urging Ontario’s Ministry of Education to release the much-delayed Education Quality and Accountability Office assessment results. 0162
Jason To | 杜澤信 @mrjasonto.com · 15/11/2025Check out the latest episode of the @thinkthankthunk.ca podcast to hear me rant about inquiry-based vs. explicit instruction and how they fit: thinkthankthunk.ca/ep-27/ or wherever you get your pods.thinkthankthunk.caEp 27 - Jason To - Think Thank ThunkJason To joins Kyle to bridge the gap between cognitive science and Thinking Classrooms. Learn how cognitive load and collective memory may help explain why Building Thinking Classrooms works. 051
Reposted by Jason To | 杜澤信Tiffany @tleeteach.bsky.social · 29/10/2025Implementing our Shaping Algebraic Reasoning Patterning PD into the classroom. Students built and walked around trying to determine other groups’ pattern rule. They were able to see the rate of change and constant. Great way to start linear relations! @mrjasonto.com @tdsbmath.bsky.social 021
Reposted by Jason To | 杜澤信Codruta Colceriu @codruc.bsky.social · 22/10/2025How can we count efficiently? Counting Collections to start the Number Sense unit that will focus on representing, composing and decomposing numbers. Grade 3s @tdsb.on.ca Gracedale PS came up with amazing observations! @mrjasonto.com @tdsbmath.bsky.social 032
Reposted by Jason To | 杜澤信Tiffany @tleeteach.bsky.social · 23/10/2025Day 2 of Leadership in Destreamed Mathematics PD and leaders got to play with algebra tiles to explore how they could use them to collect like terms, add/subtract polynomials, multiply and expand, factor and complete the square. So much fun! @mrjasonto.com @tdsbmath.bsky.social 043
Reposted by Jason To | 杜澤信Tiffany @tleeteach.bsky.social · 19/10/2025Day 1 of facilitating with @codruc.bsky.social on Shaping Algebraic Reasoning with grade 7-10 teachers. Such a great PD on patterning and linear relations. Great activities to bring back to the class and do with students. @mrjasonto.com @tdsbmath.bsky.social 054
Reposted by Jason To | 杜澤信Tiffany @tleeteach.bsky.social · 19/10/2025Exploring unit fractions with grade 9s at Emery CI. Lots of math conversations happening! @mrjasonto.com @tdsbmath.bsky.social 022
Reposted by Jason To | 杜澤信Tiffany @tleeteach.bsky.social · 19/10/2025Day 1 of Unlocking Fractions with grades 2-5 math teachers was great! Dived into equal sharing, estimating proportions and unit fractions! @tdsbmath.bsky.social @mrjasonto.com 022
Reposted by Jason To | 杜澤信Tiffany @tleeteach.bsky.social · 19/10/2025Using mini whiteboards as a tool for a whole class formative assessment is so quick and easy to do. Great strategy! @mrjasonto.com @tdsbmath.bsky.social 022
Jason To | 杜澤信 @mrjasonto.com · 28/09/2025I got to meet folks from Tokona te Raki, an organization that is tackling academic streaming to promote educational equity for Māori children in New Zealand. I shared some insights about destreaming in Ontario and they captured them in their annual report. www.maorifutures.co.nz/research/kok... 021
Reposted by Jason To | 杜澤信Tiffany @tleeteach.bsky.social · 26/09/2025Day 1 of Leadership in Destreamed Mathematics🤩! Had VP/Ps,CL/ACLs & teachers analyze school data to help set goals.& Looked at formative assessments & talk about next steps through small group instruction. & Worked on linking factor trees to scientific notation! @mrjasonto.com @tdsbmath.bsky.social 032
Jason To | 杜澤信 @mrjasonto.com · 21/09/2025When I’m not math-ing, I’m winning NHL94 world championships 🏆🏆🏆 @nhl94.bsky.social 190
Reposted by Jason To | 杜澤信Jenna Laib @jennalaib.bsky.social · 21/09/2025I wrote up an experience using a slow reveal graph with a fourth grade class for Edutopia. ✨ 1216
Reposted by Jason To | 杜澤信Athul K. Acharya @athul.acharya.cc · 09/09/2025"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." 217153315168
Jason To | 杜澤信 @mrjasonto.com · 01/09/2025Financial 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/... 020
Reposted by Jason To | 杜澤信Ilana Horn @ilanahorn.bsky.social · 31/08/2025[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... #iteachmathnytimes.comYou Don’t Need to Be Good at Math to Enjoy It 03012
Reposted by Jason To | 杜澤信Ilana Horn @ilanahorn.bsky.social · 22/08/2025🧵 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...link.springer.comTeachers’ subjectivities in responsive instruction: when ambitious practice encounters challenging teaching situations - Instructional ScienceIn the pursuit of inclusive classrooms, educators have identified the importance of teachers’ responsiveness to the particular students they teach. To date, research on responsive teaching has emphasi... 1105
Reposted by Jason To | 杜澤信Alayne Armstrong @armstrg.bsky.social · 23/08/2025The Racial Justice in Early Math project [Image of child's arm and some red and white counters on a desktop]hechingerreport.orgRacial bias affects early math education. Researchers are trying to stop thatResearchers say more resources, teacher awareness needed to combat racial bias in math lessons. 034
Reposted by Jason To | 杜澤信Rachel Lambert, prof at UCSB, teacher! @mathematize4all.bsky.social · 24/08/2025Great thread about the role of motivation/connection/interest in cognitive load theory . . . #ITeachMath #MathEd 041
Jason To | 杜澤信 @mrjasonto.com · 24/08/2025Solid 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...edweek.orgHow Should We Teach Math? General and Special Ed. Researchers Don't AgreeThe divide makes it less likely that students who struggle will get access to proven strategies, researchers argue in a new study. 270
Jason To | 杜澤信 @mrjasonto.com · 19/08/2025MAGAs 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... 010
Jason To | 杜澤信 @mrjasonto.com · 12/08/2025People 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. 041
Jason To | 杜澤信 @mrjasonto.com · 12/08/2025Students 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/...cbc.caAI and social media are everywhere in teens' lives. Can they impact cognitive skills? | CBC NewsTechnology is an integral part of schooling today, but when students use ChatGPT to complete assignments or scroll TikTok to research topics, what's happening to their cognitive skills? Concern that d... 151
Reposted by Jason To | 杜澤信The New Yorker @newyorker.com · 10/08/2025Mark 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.newyorker.comICE’s Spectacle of IntimidationImmigrants showing up for court dates in Manhattan must now navigate past rows of masked federal agents. 24684132982
Jason To | 杜澤信 @mrjasonto.com · 10/08/2025Every 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...miamiherald.comTasers and neck restraints: A U.S. citizen recorded his arrest by state, federal agents“They’re not going after criminals, they’re going after landscapers and roofers,” he told the Miami Herald 021
Jason To | 杜澤信 @mrjasonto.com · 10/08/2025Congratulations 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...vancouver.citynews.caKeep calm and swim on: how a Canadian man conquered the English ChannelIn July, Toronto high school teacher Sam Garrison defeated the odds and made a solo swim across the English Channel. 030
Reposted by Jason To | 杜澤信Brian Bilston @brianbilston.bsky.social · 04/08/2025The 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. 26612222
Jason To | 杜澤信 @mrjasonto.com · 04/08/2025Hot 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...cbc.caCanadian teachers want lessons on how to ethically incorporate AI into classrooms | CBC NewsCanadian teachers say they lack instruction on how to use AI educationally and ethically in the classroom. The complaint comes as three major tech companies are teaming up with teacher unions in the U... 043
Jason To | 杜澤信 @mrjasonto.com · 30/07/2025Exams, like all school assessments, are highly subjective. Teachers decide which concepts will be emphasized, which ones not to include, how many questions it will have, and how they will be marked. Exams for the same course can look very different between two schools on the same street. 000
Reposted by Jason To | 杜澤信ArtsNScience @borgalerp.bsky.social · 28/07/2025Student 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 #educationthestar.comWhat does no politics in the classroom mean? Ford government’s directive has created fear and confusion, say parents and teachersMany worry the vague directive will affect how Toronto’s public schools handle certain topics, particularly relating to marginalized communities. 053
Jason To | 杜澤信 @mrjasonto.com · 28/07/2025Sorry - I accessed it on PressReader via the Toronto Public Library system, which is free. Maybe your library system has it, too? 100
Jason To | 杜澤信 @mrjasonto.com · 27/07/2025Affirming 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...thestar.comWhat does no politics in the classroom mean? Ford government’s directive has created fear and confusion, say parents and teachersMany worry the vague directive will affect how Toronto’s public schools handle certain topics, particularly relating to marginalized communities. 160
Reposted by Jason To | 杜澤信Fawn Nguyen @fawnnguyen.substack.com · 06/07/2025New post: Permission to Go Off Script Building Thinking Classrooms practices are powerful—but they’re not all-or-nothing fawnnguyen.substack.com/p/permission...fawnnguyen.substack.comPermission to Go Off ScriptBuilding Thinking Classrooms practices are powerful—but they’re not all-or-nothing 4358
Jason To | 杜澤信 @mrjasonto.com · 04/07/2025Friends 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...youtube.comOpening More Pathways, For More Students with De-streamingYouTube video by WRDSB 071