Mandy Jansen
@mandymathed.bsky.social
Professor of mathematics education at the University of Delaware's School of Education. Former middle school mathematics teacher in Arizona. I wrote a book called Rough Draft Math: Revising to Learn. (Obviously, all views are my own.)
In the midst of packing and moving houses -- to a home that is closer to campus. Say yes to a 5 minute commute and potentially biking once the weather is right. That said, I'm cognitively off due to stress. Not finding my words from time to time. I'll be happy when this move is done.
January 16, 2026 at 1:12 PM
In the midst of packing and moving houses -- to a home that is closer to campus. Say yes to a 5 minute commute and potentially biking once the weather is right. That said, I'm cognitively off due to stress. Not finding my words from time to time. I'll be happy when this move is done.
Reposted by Mandy Jansen
It would appear I am now a columnist at Inside Higher Ed. My first piece focuses on McCarthyism, censorship, and our current moment in higher education. This is an essay I started nearly 6 months ago so I'm glad to finally share it with y'all.
www.insidehighered.com/opinion/colu...
www.insidehighered.com/opinion/colu...
Censorship Arrives on Campus
In her debut column, “Echoes in the Quad,” higher education policy scholar Dominique J. Baker explores how the political oppression of the McCarthy era reverberates in the stifling of academic freedom...
www.insidehighered.com
January 13, 2026 at 2:24 PM
It would appear I am now a columnist at Inside Higher Ed. My first piece focuses on McCarthyism, censorship, and our current moment in higher education. This is an essay I started nearly 6 months ago so I'm glad to finally share it with y'all.
www.insidehighered.com/opinion/colu...
www.insidehighered.com/opinion/colu...
Reposted by Mandy Jansen
These fucking politicians need to STOP CONSTANTLY admonishing protestors to be "peaceful" while they are being brutalized regularly by the gatekeepers of the state. You should be up there telling ICE and Border Patrol to be fucking peaceful.
January 8, 2026 at 5:51 PM
These fucking politicians need to STOP CONSTANTLY admonishing protestors to be "peaceful" while they are being brutalized regularly by the gatekeepers of the state. You should be up there telling ICE and Border Patrol to be fucking peaceful.
Reposted by Mandy Jansen
Remembering today that having your heart broken is a necessary step on the path to becoming fully human. Whichever heartbreak is your first, it’s probably critical that a state break your heart so that you can develop a political imagination. If this is your first, I’m sorry and also welcome.
January 8, 2026 at 10:33 PM
Remembering today that having your heart broken is a necessary step on the path to becoming fully human. Whichever heartbreak is your first, it’s probably critical that a state break your heart so that you can develop a political imagination. If this is your first, I’m sorry and also welcome.
Friends, I was stuck in Puerto Rico for an extra day due to USA’s military actions in Venezuela. I am against what happened there. It was an act of war without Congressional approval. It was harmful to civilians. My travel situation is pretty annoying, too, but I am safe.
January 4, 2026 at 3:19 PM
Friends, I was stuck in Puerto Rico for an extra day due to USA’s military actions in Venezuela. I am against what happened there. It was an act of war without Congressional approval. It was harmful to civilians. My travel situation is pretty annoying, too, but I am safe.
Went to Longwood Gardens last night. It was lovely to see it lit up with snow on the ground.
December 17, 2025 at 2:57 PM
Went to Longwood Gardens last night. It was lovely to see it lit up with snow on the ground.
Reposted by Mandy Jansen
🔥 Hot off the press! 📘 A must-have for classroom discourse in the elementary math classroom! Check up the updates in the second edition here. ➡️ spr.ly/633227CTho
Intentional Talk and Listening: How to Structure and Lead Productive Mathematical Discussions
Math teachers know the first step to meaningful mathematics discussions is to ask students to share how they solved a problem and make their thinking visible; however, knowing where to go next can be a daunting task.
In Intentional Talk and Listening: How to Structure and Lead Productive Mathematical Discussions, Elham Kazemi and Allison Hintz provide teachers with a practical framework for planning and facilitating purposeful math talks that move group discussions to the next level while achiev
spr.ly
December 9, 2025 at 9:46 PM
🔥 Hot off the press! 📘 A must-have for classroom discourse in the elementary math classroom! Check up the updates in the second edition here. ➡️ spr.ly/633227CTho
Reposted by Mandy Jansen
Mathematicians, math enthusiasts, and math teachers everywhere should want a piece of this:
#iTeachMath
#iTeachMath
Is There a Better Way to Cut a Cake?
Rings, zigzags, slabs and elaborate geometric designs are giving savvy party hosts new methods for a more equitable slice.
www.nytimes.com
December 7, 2025 at 1:40 AM
Mathematicians, math enthusiasts, and math teachers everywhere should want a piece of this:
#iTeachMath
#iTeachMath
Reposted by Mandy Jansen
This week is the 🎡 Reassessment Carnival 🎡 in my classes, where students optionally retake any assessment to update me one last time with a demonstration of what they know. It's an exciting and stressful and satisfying week full of celebration for students' accomplishments and also a TON of grading.
December 2, 2025 at 9:48 PM
This week is the 🎡 Reassessment Carnival 🎡 in my classes, where students optionally retake any assessment to update me one last time with a demonstration of what they know. It's an exciting and stressful and satisfying week full of celebration for students' accomplishments and also a TON of grading.
Worth waiting a year for Part 2! Such a gorgeous film - Wicked: For Good!
November 23, 2025 at 7:59 PM
Worth waiting a year for Part 2! Such a gorgeous film - Wicked: For Good!
An event where the line for the men’s restroom is longer than the women’s? Hockey. Go Flyers!
November 23, 2025 at 1:09 AM
An event where the line for the men’s restroom is longer than the women’s? Hockey. Go Flyers!
Reposted by Mandy Jansen
squirrel: *points gun*
me: what do you want me to do?
squirrel: *gestures at sign*
me: alright, i get it *opens book drop*
squirrel: *makes hurry-up motion*
me: NOT A SQUIRREL!
squirrel: *disappears into book drop*
me: *whispers* forgive me, keith
me: what do you want me to do?
squirrel: *gestures at sign*
me: alright, i get it *opens book drop*
squirrel: *makes hurry-up motion*
me: NOT A SQUIRREL!
squirrel: *disappears into book drop*
me: *whispers* forgive me, keith
November 19, 2025 at 1:41 PM
squirrel: *points gun*
me: what do you want me to do?
squirrel: *gestures at sign*
me: alright, i get it *opens book drop*
squirrel: *makes hurry-up motion*
me: NOT A SQUIRREL!
squirrel: *disappears into book drop*
me: *whispers* forgive me, keith
me: what do you want me to do?
squirrel: *gestures at sign*
me: alright, i get it *opens book drop*
squirrel: *makes hurry-up motion*
me: NOT A SQUIRREL!
squirrel: *disappears into book drop*
me: *whispers* forgive me, keith
If we ever doubted that he was in the files... you can read some emails here.
November 12, 2025 at 6:37 PM
If we ever doubted that he was in the files... you can read some emails here.
Reposted by Mandy Jansen
The Supreme Court has rejected a call to overturn its landmark decision that legalized same-sex marriage nationwide
Supreme Court Rejects Call To Overturn Its Decision Legalizing Same-sex Marriage Nationwide
The Supreme Court has rejected a call to overturn its landmark decision that legalized same-sex marriage nationwide.
www.huffpost.com
November 10, 2025 at 3:01 PM
The Supreme Court has rejected a call to overturn its landmark decision that legalized same-sex marriage nationwide
Reposted by Mandy Jansen
This is Trump “not touching“ the East Wing of the White House. Remember this the next time Trump says he won’t touch Social Security.
abcnews.go.com/Politics/ent...
abcnews.go.com/Politics/ent...
Entire East Wing expected to be demolished as soon as this weekend, sources say
The White House is expected to demolish the entire East Wing to allow for construction of President Trump’s ballroom, sources familiar with the project told ABC News.
abcnews.go.com
October 23, 2025 at 12:19 AM
This is Trump “not touching“ the East Wing of the White House. Remember this the next time Trump says he won’t touch Social Security.
abcnews.go.com/Politics/ent...
abcnews.go.com/Politics/ent...
Reposted by Mandy Jansen
when your class is online asynchronous but canvas is down because of AWS crashing. 🙃
i don't know, y'all, seems to me like letting three companies run everything is a bad idea.
i don't know, y'all, seems to me like letting three companies run everything is a bad idea.
October 20, 2025 at 1:43 PM
when your class is online asynchronous but canvas is down because of AWS crashing. 🙃
i don't know, y'all, seems to me like letting three companies run everything is a bad idea.
i don't know, y'all, seems to me like letting three companies run everything is a bad idea.
Reposted by Mandy Jansen
Happy "PROFESSOR!!! CANVAS IS DOWN!!!" day to all academics who celebrate.
October 20, 2025 at 5:32 PM
Happy "PROFESSOR!!! CANVAS IS DOWN!!!" day to all academics who celebrate.
Also Canvas!!!
Snapchat, Canva, Duolingo, Zoom, Amazon, MyFitnessPal, Fortnite, Signal, Roblox and more are currently down.
October 20, 2025 at 9:00 PM
Also Canvas!!!
Reposted by Mandy Jansen
The way one company can bring down half the fucking internet
October 20, 2025 at 2:02 PM
The way one company can bring down half the fucking internet
Reposted by Mandy Jansen
Inspired by #NCTMATL25 to present at an upcoming conference? Both NCTM and OAME 2026 conference proposals close on Nov. 1st. Here are some thoughts on the benefits of writing a math conference proposal. pbbmath.weebly.com/blog/confere... #ITeachMath @oamelearns.bsky.social
Conference Proposals to Clarify Your Practice
The 2025 NCTM conference kicks off in just a few days in Atlanta, Georgia. Social media is full of teachers preparing for the event and exhibitors inviting participants to visit their booths. While I....
pbbmath.weebly.com
October 18, 2025 at 2:06 PM
Inspired by #NCTMATL25 to present at an upcoming conference? Both NCTM and OAME 2026 conference proposals close on Nov. 1st. Here are some thoughts on the benefits of writing a math conference proposal. pbbmath.weebly.com/blog/confere... #ITeachMath @oamelearns.bsky.social
Reposted by Mandy Jansen
There is a robust conversation already about supporting students digital literacy abilities.
This is good & necessary & (from what I can see) happening.
I would offer that there is an equally compelling case for the need to practice perspective taking.
I wish this was more supported.
This is good & necessary & (from what I can see) happening.
I would offer that there is an equally compelling case for the need to practice perspective taking.
I wish this was more supported.
October 19, 2025 at 11:21 AM
There is a robust conversation already about supporting students digital literacy abilities.
This is good & necessary & (from what I can see) happening.
I would offer that there is an equally compelling case for the need to practice perspective taking.
I wish this was more supported.
This is good & necessary & (from what I can see) happening.
I would offer that there is an equally compelling case for the need to practice perspective taking.
I wish this was more supported.
Why did a delivery driver ring my doorbell early in the morning on a day when I could sleep in but not any other day?
October 18, 2025 at 11:37 AM
Why did a delivery driver ring my doorbell early in the morning on a day when I could sleep in but not any other day?
I am vaccinated. I also value herd immunity, so get your shots, please!
“Vaccines are not just for disease prevention, but it’s also to prevent you from getting a severe form of the disease (if you get infected) that sends you to the hospital or worse. Flu every year and Covid every year still cause significant mortality in the country.”
www.cnn.com/2025/10/15/h...
www.cnn.com/2025/10/15/h...
Respiratory virus season has arrived. What to know about getting this year’s vaccines | CNN
It’s that time of year when the leaves are turning golden, there’s a chill in the air and the threat of respiratory viruses like Covid-19, influenza or RSV looms across the country.
www.cnn.com
October 17, 2025 at 4:47 PM
I am vaccinated. I also value herd immunity, so get your shots, please!
At the NCTM research conference, @meg-botello.bsky.social and I presented about a mathematics teacher’s incorporation of drafting and revising into an Illustrative Mathematics lesson.
October 16, 2025 at 7:08 PM
At the NCTM research conference, @meg-botello.bsky.social and I presented about a mathematics teacher’s incorporation of drafting and revising into an Illustrative Mathematics lesson.