#iTeachMath is everywhere
Ranked-choice voting actually makes the double-Sullivan ploy ineffective. If anyone is confused, they vote for both. And unless Peltola gets over 50%, they get combined. So why run this deceptive article? Guess.
NYT is going all out in its effort to promote fascism, having yet another piece on the Dems' Dan Sullivan ballot effort in Alaska. This time with a literally 100% nonsense piece on ranked-choice voting www.nytimes.com/2026/11/01/u...
November 1, 2026 at 3:39 PM
#iTeachMath is everywhere
We had a blast talking with and learning from so many passionate educators at NCTM last week.
Where should we head next?
#iteachmath #edusky @nctm.org
Where should we head next?
#iteachmath #edusky @nctm.org
November 3, 2026 at 4:03 PM
We had a blast talking with and learning from so many passionate educators at NCTM last week.
Where should we head next?
#iteachmath #edusky @nctm.org
Where should we head next?
#iteachmath #edusky @nctm.org
November 3, 2026 at 8:23 PM
A dodecagon inscribed in a unit circle has area 3. This can be shown using Kürschák's Tile.
www.desmos.com/calculator/x...
#iTeachMath @desmos.com
www.desmos.com/calculator/x...
#iTeachMath @desmos.com
October 31, 2026 at 3:00 AM
A dodecagon inscribed in a unit circle has area 3. This can be shown using Kürschák's Tile.
www.desmos.com/calculator/x...
#iTeachMath @desmos.com
www.desmos.com/calculator/x...
#iTeachMath @desmos.com
Wishing all the #mathstoday and #iteachmath folks many treats, or at least funny tricks.
October 31, 2026 at 2:57 PM
Wishing all the #mathstoday and #iteachmath folks many treats, or at least funny tricks.
Compare 2026 with 1841:
#iTeachMath
"All students must have frequent opportunities to be actively engaged in reasoning and sense-making. Such opportunities support seeing math not as a set of rules to be memorized but as conceptually coherent"
#iTeachMath
"All students must have frequent opportunities to be actively engaged in reasoning and sense-making. Such opportunities support seeing math not as a set of rules to be memorized but as conceptually coherent"
November 1, 2026 at 2:42 PM
math turning out to be useful has been a mild disaster for its image, as it's led to people thinking it's *supposed* to be useful, when in fact math does not owe you one iota of usefulness
October 29, 2026 at 3:18 PM
Compare 2026 with 1841:
#iTeachMath
"All students must have frequent opportunities to be actively engaged in reasoning and sense-making. Such opportunities support seeing math not as a set of rules to be memorized but as conceptually coherent"
#iTeachMath
"All students must have frequent opportunities to be actively engaged in reasoning and sense-making. Such opportunities support seeing math not as a set of rules to be memorized but as conceptually coherent"
November 1, 2026 at 2:20 PM
Compare 2026 with 1841:
#iTeachMath
"All students must have frequent opportunities to be actively engaged in reasoning and sense-making. Such opportunities support seeing math not as a set of rules to be memorized but as conceptually coherent"
#iTeachMath
"All students must have frequent opportunities to be actively engaged in reasoning and sense-making. Such opportunities support seeing math not as a set of rules to be memorized but as conceptually coherent"
I want an app for this phenomenon in the style of "The Parable of the Polygons," to go with the excellent JRMF gerrymander kit. jrmf.org/puzzle/gerry... #iTeachMath
November 4, 2026 at 12:23 PM
I want an app for this phenomenon in the style of "The Parable of the Polygons," to go with the excellent JRMF gerrymander kit. jrmf.org/puzzle/gerry... #iTeachMath
NSF funded:
playfulmathematicslearning.com
"A place for educators to explore playful mathematics learning for students. Whether you're looking for inspiration or ready-to-use lessons, find standards-aligned, play-based activities for your classroom."
#iTeachMath 🧮♾️
playfulmathematicslearning.com
"A place for educators to explore playful mathematics learning for students. Whether you're looking for inspiration or ready-to-use lessons, find standards-aligned, play-based activities for your classroom."
#iTeachMath 🧮♾️
Home
Check out Playful Mathematics Project!
playfulmathematicslearning.com
November 3, 2026 at 9:52 PM
NSF funded:
playfulmathematicslearning.com
"A place for educators to explore playful mathematics learning for students. Whether you're looking for inspiration or ready-to-use lessons, find standards-aligned, play-based activities for your classroom."
#iTeachMath 🧮♾️
playfulmathematicslearning.com
"A place for educators to explore playful mathematics learning for students. Whether you're looking for inspiration or ready-to-use lessons, find standards-aligned, play-based activities for your classroom."
#iTeachMath 🧮♾️
It is not too early to start arranging your trip to Bakersfield for the famous CMC-Central Symposium on March 12 & 13, 2027.
Information and registration here: http://tinyurl.com/C...
@cmcmath.bsky.social @CAMathCouncil #iTeachMath
Information and registration here: http://tinyurl.com/C...
@cmcmath.bsky.social @CAMathCouncil #iTeachMath
November 4, 2026 at 1:00 PM
It is not too early to start arranging your trip to Bakersfield for the famous CMC-Central Symposium on March 12 & 13, 2027.
Information and registration here: http://tinyurl.com/C...
@cmcmath.bsky.social @CAMathCouncil #iTeachMath
Information and registration here: http://tinyurl.com/C...
@cmcmath.bsky.social @CAMathCouncil #iTeachMath
We've been doing Mundane Mathematician Costumes with kids. "Mathematician who is mad because a paper model refuses to cooperate" or "Mathematician who just had an insight." #iTeachMath
looking at the mundane halloween 2026 stream
"Person who is using a sink that's so stylishly designed, they can't get water to come out" #地味ハロウィン #地味ハロウィン2026
"Person who is using a sink that's so stylishly designed, they can't get water to come out" #地味ハロウィン #地味ハロウィン2026
November 2, 2026 at 6:18 PM
We've been doing Mundane Mathematician Costumes with kids. "Mathematician who is mad because a paper model refuses to cooperate" or "Mathematician who just had an insight." #iTeachMath
Great scaling strategy Elps! And a lovely way to find a decimal equivalent for 5/8.
#MathIsFigureOutAble #MathStratChat #MTBoS #ITeachMath #MathEd
#MathIsFigureOutAble #MathStratChat #MTBoS #ITeachMath #MathEd
November 3, 2026 at 8:08 PM
Great scaling strategy Elps! And a lovely way to find a decimal equivalent for 5/8.
#MathIsFigureOutAble #MathStratChat #MTBoS #ITeachMath #MathEd
#MathIsFigureOutAble #MathStratChat #MTBoS #ITeachMath #MathEd
[New Post] Ontario Math Links - My favourite #math related links from this week:
ontariomath.blogspot.com/2026/11/math...
Links and help from @howiehua.bsky.social and more #MathChat #MTBoS #iTeachMath
ontariomath.blogspot.com/2026/11/math...
Links and help from @howiehua.bsky.social and more #MathChat #MTBoS #iTeachMath
November 1, 2026 at 5:27 PM
[New Post] Ontario Math Links - My favourite #math related links from this week:
ontariomath.blogspot.com/2026/11/math...
Links and help from @howiehua.bsky.social and more #MathChat #MTBoS #iTeachMath
ontariomath.blogspot.com/2026/11/math...
Links and help from @howiehua.bsky.social and more #MathChat #MTBoS #iTeachMath
I've always found textbook exercises to be insufficient in improving understanding, so I've started whipping up some more "thoughtful" questions for Algebra II Honors. I'm particularly proud of this collection. Feel free to steal & use as you like! #iTeachMath www.overleaf.com/project/6ae3...
Project Invite
An online LaTeX editor that’s easy to use. No installation, real-time collaboration, version control, hundreds of LaTeX templates, and more.
www.overleaf.com
November 2, 2026 at 6:43 PM
I've always found textbook exercises to be insufficient in improving understanding, so I've started whipping up some more "thoughtful" questions for Algebra II Honors. I'm particularly proud of this collection. Feel free to steal & use as you like! #iTeachMath www.overleaf.com/project/6ae3...
Some may find #ranked-choiceVoting complicated but my 1st and 2nd graders at Stanford #mathCircle seem to understand it. They have created scenarios where the winner is nobody's 1st choice, somebody's last choice, determined by a "spoiler", and more. #mathisfun #mtbos #iteachmath #mathAndVoting
November 2, 2026 at 10:49 PM
Some may find #ranked-choiceVoting complicated but my 1st and 2nd graders at Stanford #mathCircle seem to understand it. They have created scenarios where the winner is nobody's 1st choice, somebody's last choice, determined by a "spoiler", and more. #mathisfun #mtbos #iteachmath #mathAndVoting
October 27, 2026 at 2:02 PM
It's time for #MathStratChat!
Rules: post your favorite or a clever solution! It's also fun to comment on other's strategies.
Tell us about your reasoning.
Like/share so others can see!
#MathIsFigureOutAble #MathStratChat #MTBoS #ITeachMath #MathEd
Rules: post your favorite or a clever solution! It's also fun to comment on other's strategies.
Tell us about your reasoning.
Like/share so others can see!
#MathIsFigureOutAble #MathStratChat #MTBoS #ITeachMath #MathEd
November 5, 2026 at 1:27 AM
It's time for #MathStratChat!
Rules: post your favorite or a clever solution! It's also fun to comment on other's strategies.
Tell us about your reasoning.
Like/share so others can see!
#MathIsFigureOutAble #MathStratChat #MTBoS #ITeachMath #MathEd
Rules: post your favorite or a clever solution! It's also fun to comment on other's strategies.
Tell us about your reasoning.
Like/share so others can see!
#MathIsFigureOutAble #MathStratChat #MTBoS #ITeachMath #MathEd
Build 1st quadrant unit circle from special right triangles (or just do triangles if not teaching unit circle in this class)
All the exact values are from 30-60-90 & isos Rt triangles, and tan = sin/cos. SOH-CAH-TOA ok to remember (use acronym, not inappropriate context)
#iTeachMath #MathsToday
All the exact values are from 30-60-90 & isos Rt triangles, and tan = sin/cos. SOH-CAH-TOA ok to remember (use acronym, not inappropriate context)
#iTeachMath #MathsToday
November 3, 2026 at 1:52 PM
Build 1st quadrant unit circle from special right triangles (or just do triangles if not teaching unit circle in this class)
All the exact values are from 30-60-90 & isos Rt triangles, and tan = sin/cos. SOH-CAH-TOA ok to remember (use acronym, not inappropriate context)
#iTeachMath #MathsToday
All the exact values are from 30-60-90 & isos Rt triangles, and tan = sin/cos. SOH-CAH-TOA ok to remember (use acronym, not inappropriate context)
#iTeachMath #MathsToday
Intentional math discussions beat chaos every time. Don’t fish for random answers—highlight the strategies that actually build understanding.
#MathIsFigureOutAble #MathChat #MTBoS #ITeachMath #MathEd
#MathIsFigureOutAble #MathChat #MTBoS #ITeachMath #MathEd
October 31, 2026 at 2:27 PM
Intentional math discussions beat chaos every time. Don’t fish for random answers—highlight the strategies that actually build understanding.
#MathIsFigureOutAble #MathChat #MTBoS #ITeachMath #MathEd
#MathIsFigureOutAble #MathChat #MTBoS #ITeachMath #MathEd
Start arranging your trip to Bakersfield for the famous CMC-Central Symposium on March 12 & 13, 2027. We hae arranged some amazing speakers fo ryou!
Information and registration here: http://tinyurl.com/C...
@cmcmath.bsky.social @CAMathCouncil #iTeachMath
Information and registration here: http://tinyurl.com/C...
@cmcmath.bsky.social @CAMathCouncil #iTeachMath
November 4, 2026 at 10:00 PM
Start arranging your trip to Bakersfield for the famous CMC-Central Symposium on March 12 & 13, 2027. We hae arranged some amazing speakers fo ryou!
Information and registration here: http://tinyurl.com/C...
@cmcmath.bsky.social @CAMathCouncil #iTeachMath
Information and registration here: http://tinyurl.com/C...
@cmcmath.bsky.social @CAMathCouncil #iTeachMath
[NewPodcast] This episode feat. Sophie Tyrrel & Michele Goveia previewing their Nov 11th @oamecounts.bsky.social webinar "ELLs Can Do Math! Supporting & Celebrating ELLs in the Intermediate Division Gr. 7-10" More info:
talks.oame.on.ca/season-9
#MathChat #MTBoS #iTeachMath
talks.oame.on.ca/season-9
#MathChat #MTBoS #iTeachMath
November 1, 2026 at 5:10 PM
[NewPodcast] This episode feat. Sophie Tyrrel & Michele Goveia previewing their Nov 11th @oamecounts.bsky.social webinar "ELLs Can Do Math! Supporting & Celebrating ELLs in the Intermediate Division Gr. 7-10" More info:
talks.oame.on.ca/season-9
#MathChat #MTBoS #iTeachMath
talks.oame.on.ca/season-9
#MathChat #MTBoS #iTeachMath
The Math On the Rocks team is excited to have Nigel Nisbet as our guest for a LIVE recording. Join in on the fun at CMC South.
Registration: www.cmcmath.org/conf...
@cmcmath.bsky.social @CAMathCouncil #iTeachMath
Registration: www.cmcmath.org/conf...
@cmcmath.bsky.social @CAMathCouncil #iTeachMath
November 2, 2026 at 8:00 PM
The Math On the Rocks team is excited to have Nigel Nisbet as our guest for a LIVE recording. Join in on the fun at CMC South.
Registration: www.cmcmath.org/conf...
@cmcmath.bsky.social @CAMathCouncil #iTeachMath
Registration: www.cmcmath.org/conf...
@cmcmath.bsky.social @CAMathCouncil #iTeachMath
My favorite rational function problem. Analyze time vs x mph speeding. #mathstoday #iteachmath
October 28, 2026 at 2:17 PM
My favorite rational function problem. Analyze time vs x mph speeding. #mathstoday #iteachmath
Untimed practice helps students understand the method. Timed practice builds fluency under pressure. Focus on accuracy first, then add speed gradually. Both have a place in effective math practice.
#EduSky #iTeachMath #Mathematics #MathSky #Math #StudyTips
#EduSky #iTeachMath #Mathematics #MathSky #Math #StudyTips
November 4, 2026 at 5:07 PM
Untimed practice helps students understand the method. Timed practice builds fluency under pressure. Focus on accuracy first, then add speed gradually. Both have a place in effective math practice.
#EduSky #iTeachMath #Mathematics #MathSky #Math #StudyTips
#EduSky #iTeachMath #Mathematics #MathSky #Math #StudyTips