Jason To | 杜澤信
@mrjasonto.com
School streaming/tracking abolitionist. K-12 mathematics & numeracy coordinator @tdsbmath.bsky.social improving math teaching & learning for 240,000 students in @tdsb.on.ca. 3-time #NHL94 SNES world champion.
➡️ http://mrjasonto.com
➡️ http://mrjasonto.com
My heart breaks for the Tumbler Ridge community. All of Canada mourns for the victims of this immense tragedy.
February 11, 2026 at 2:19 AM
My heart breaks for the Tumbler Ridge community. All of Canada mourns for the victims of this immense tragedy.
Reposted by Jason To | 杜澤信
Today, 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
February 4, 2026 at 4:46 AM
Today, 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
Reposted by Jason To | 杜澤信
God bless Canadian Prime Minister Mark Carney for saying what needed to be said in his Davos speech.
January 20, 2026 at 6:31 PM
God bless Canadian Prime Minister Mark Carney for saying what needed to be said in his Davos speech.
If 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...
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...
January 20, 2026 at 9:04 PM
If 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...
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...
Bob was a good man and left a mark on so many people. My condolences to his family and friends.
www.cbc.ca/news/canada/...
www.cbc.ca/news/canada/...
Toronto basketball coach Bob Maydo remembered by former students, family, friends | CBC News
A 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.
www.cbc.ca
January 19, 2026 at 3:44 AM
Bob was a good man and left a mark on so many people. My condolences to his family and friends.
www.cbc.ca/news/canada/...
www.cbc.ca/news/canada/...
This 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-...
Bill 33 appears to be the next stage in this evolution.
www.tvo.org/article/how-...
TVO Today | Current Affairs Journalism, Documentaries and Podcasts
www.tvo.org
November 23, 2025 at 12:43 PM
This 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-...
Bill 33 appears to be the next stage in this evolution.
www.tvo.org/article/how-...
The 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/...
www.cbc.ca/news/canada/...
Teachers, politicians call on the province to release EQAO results | CBC News
Educators and politicians are urging Ontario’s Ministry of Education to release the much-delayed Education Quality and Accountability Office assessment results.
www.cbc.ca
November 22, 2025 at 8:11 PM
The 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/...
www.cbc.ca/news/canada/...
Check 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.ca/ep-27/
or wherever you get your pods.
Ep 27 - Jason To - Think Thank Thunk
Jason 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.
thinkthankthunk.ca
November 15, 2025 at 6:00 PM
Check 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.ca/ep-27/
or wherever you get your pods.
Reposted by Jason To | 杜澤信
Implementing 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
October 29, 2025 at 12:12 AM
Implementing 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
Reposted by Jason To | 杜澤信
How 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
October 22, 2025 at 10:29 PM
How 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
Reposted by Jason To | 杜澤信
Day 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
October 23, 2025 at 10:44 PM
Day 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
Reposted by Jason To | 杜澤信
Day 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
October 19, 2025 at 7:48 PM
Day 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
Reposted by Jason To | 杜澤信
Exploring unit fractions with grade 9s at Emery CI. Lots of math conversations happening! @mrjasonto.com @tdsbmath.bsky.social
October 19, 2025 at 7:39 PM
Exploring unit fractions with grade 9s at Emery CI. Lots of math conversations happening! @mrjasonto.com @tdsbmath.bsky.social
Reposted by Jason To | 杜澤信
Day 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
October 19, 2025 at 7:23 PM
Day 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
Reposted by Jason To | 杜澤信
Using 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
October 19, 2025 at 7:19 PM
Using 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
I 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...
I shared some insights about destreaming in Ontario and they captured them in their annual report.
www.maorifutures.co.nz/research/kok...
September 28, 2025 at 5:49 PM
I 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...
I shared some insights about destreaming in Ontario and they captured them in their annual report.
www.maorifutures.co.nz/research/kok...
Reposted by Jason To | 杜澤信
Day 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
September 25, 2025 at 11:19 PM
Day 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
When I’m not math-ing, I’m winning NHL94 world championships 🏆🏆🏆 @nhl94.bsky.social
September 21, 2025 at 2:32 PM
When I’m not math-ing, I’m winning NHL94 world championships 🏆🏆🏆 @nhl94.bsky.social
Reposted by Jason To | 杜澤信
I wrote up an experience using a slow reveal graph with a fourth grade class for Edutopia. ✨
By revealing graphs piece by piece, teachers can build student curiosity and guide them to more effectively make sense of data! 📊
#DataLiteracy #EduSky #MathSky
#DataLiteracy #EduSky #MathSky
The Power of Slow Reveal Graphs
Teachers can leverage students’ curiosity to explore visual representations of data in an engaging way.
edut.to
September 21, 2025 at 12:13 PM
I wrote up an experience using a slow reveal graph with a fourth grade class for Edutopia. ✨
Reposted by Jason To | 杜澤信
"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."
September 9, 2025 at 4:44 PM
"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/...
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/...
September 1, 2025 at 2:10 PM
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/...
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/...
Reposted by Jason To | 杜澤信
[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
You Don’t Need to Be Good at Math to Enjoy It
www.nytimes.com
August 31, 2025 at 11:00 AM
[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
Reposted by Jason To | 杜澤信
🧵 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...
"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...
Teachers’ subjectivities in responsive instruction: when ambitious practice encounters challenging teaching situations - Instructional Science
In 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...
link.springer.com
August 22, 2025 at 2:54 PM
🧵 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...
"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...
Reposted by Jason To | 杜澤信
The Racial Justice in Early Math project [Image of child's arm and some red and white counters on a desktop]
Racial bias affects early math education. Researchers are trying to stop that
Researchers say more resources, teacher awareness needed to combat racial bias in math lessons.
hechingerreport.org
August 23, 2025 at 5:53 PM
The Racial Justice in Early Math project [Image of child's arm and some red and white counters on a desktop]
Reposted by Jason To | 杜澤信
Great thread about the role of motivation/connection/interest in cognitive load theory . . . #ITeachMath #MathEd
Re: transient information effect.
In my own experience, the stuff that seems to stick has less to do w/ knowledge & more to do w/ purpose, intention, & emotional connection. What I know going on matters less than what I'm going to do with it because I can always find/figure out what I don't know.
In my own experience, the stuff that seems to stick has less to do w/ knowledge & more to do w/ purpose, intention, & emotional connection. What I know going on matters less than what I'm going to do with it because I can always find/figure out what I don't know.
August 24, 2025 at 5:08 PM
Great thread about the role of motivation/connection/interest in cognitive load theory . . . #ITeachMath #MathEd