Mandy Jansen

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.)

1.8K followers1K following453 posts

Mandy Jansen reposted

Tal Lavin
@swordsjew.bsky.social

i firmly believe in rewarding yourself with small, tangible treats (a nice spice mix! a good smelling tea! a comfy throw blanket!) for any achievements including continuing to be alive for another day

Mandy Jansen reposted

Jon Becker
@jonbecker.bsky.social

If you think kids hate school now, wait until everyone turns to full-time "direct instruction." That should end really well...

Trevor Aleo@mraleosays.bsky.social

The only people who will benefit from Sold A Story Season 2 are Emily Hanford, the handful of DI consultants grifters partnering with AEI, and massive curriculum companies. Not kids. Not teachers. The feeding frenzy for funding has already started.

Mandy Jansen reposted

Tammie Visintainer
@proftv.bsky.social

Here's to the brave editorial board students for the Cornell Daily Mail! 💪🏼 "This is not a dark chapter in Cornell’s history, it’s a morbid pattern....where enough ambiguity, enough he-said-she-said, enough familial connections, enough money will allow you to get off scot-free."

Adam Bonin@adambonin.bsky.social

"Cornell has failed to protect its students. Cornell has failed to address the growing issue of sexual assault on campus with its pathetic task force. Cornell has failed the student allegedly raped by those seven men at Chi Phi in October 2024. Cornell has failed her. Cornell has failed us."

Mandy Jansen reposted

Haydee, PhD
@haydeelindo.bsky.social

I'm teaching first semester Calculus this Fall. Met with the teaching team yesterday. What are we doing in the "age of AI": like others, deweighting all at-home assessments. Still brainstorming additive (as opposed to subtractive) adjustments ...

Mandy Jansen reposted

Don Moynihan
@donmoyn.bsky.social

This is akin to Trump raiding the National Parks Service in order to pay for his Reflecting Pool disaster. (Which he has done). Take something that works remarkably well, and divert resources to cronies to deliver something the public did not ask for.

Daniel Munro@dkmunro.bsky.social

“To accommodate the expected funding withdrawal, programme officers…are being required to pull back proposals that have already passed peer review and have been recommended for funding….[M]any of the researchers who submitted those proposals had already been informed” www.nature.com/articles/d41...

nature.comNSF plans cuts to core science programmes to fund White House initiativeA proposed clawback of already distributed research funds comes as the US agency struggles with a squeezed budget and a backlog of grant applications.

Mandy Jansen reposted

Pavel
@spavel.bsky.social

When you make 1 trillion dollars, you have won the game. They should give you a parade and a gold statue. And then take away all your money and you start New Game+ with tougher enemies.

Mandy Jansen reposted

Mark Peifer (He, him)
@peiferlabunc.bsky.social

Russell Vought, Director of the OMB, has issued a set of proposed changes that would dramatically alter federal grant funding. However, we can each take action to prevent these from taking effect. Here's how, a 🧵 🧪 1/n www.science.org/content/arti...

science.orgWhite House seeks to tighten political oversight of grantmakingSweeping proposed rule, now open for comments, would also restrict foreign collaborations and remove federal funding for open-access fees

Mandy Jansen reposted

Karen James
@kejames.bsky.social

A lot of people are talking about this but not nearly enough are emphasizing that it is a PROPOSAL and that we can and should SUBMIT COMMENT by July 13. Chanda shares deets in this thread.

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Mandy Jansen reposted

Faith Rogow
@insightersed.bsky.social

This is urgent enough to make it and end-of-year writing assignment for high school students to weigh in with official comments and letters to their legislators. It's their future at stake.

This post is unavailable.

Mandy Jansen reposted

Alex Wild
@alexwild.bsky.social

tl,dr; Scientists no longer allowed to use federal funding to publish, attend meetings, or talk to the public. They cannot collaborate internationally. Grants can be cancelled for any reason, at any time, political appointees have a final say over what gets funded, and who gets funded.

Science Magazine@science.org

The White House today announced it plans to make major changes in how the U.S. government manages research funding. https://scim.ag/43HgW4s

scim.agWhite House seeks to tighten political oversight of grantmakingSweeping proposed rule, now open for comments, would also restrict foreign collaborations and remove federal funding for open-access fees

Mandy Jansen reposted

Mad Scholar Frights
@mattzollerseitz.bsky.social

"The true cost of war shows up long after the fighting stops."

Justin Wolfers@justinwolfers.bsky.social

"You can't say the cost of a puppy is $200 because that was the adoption fee." The Pentagon's $25B price tag does exactly that — it ignores veterans' care, disability payments, and decades of interest. The true cost of war shows up long after the fighting stops.

Mandy Jansen
@mandymathed.bsky.social

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.

Mandy Jansen reposted

Tressie McMillan Cottom
@tressiemcphd.bsky.social

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.

Mandy Jansen
@mandymathed.bsky.social

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.

Mandy Jansen reposted

Stenhouse Publishers
@stenhousepub.bsky.social

🔥 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

spr.lyIntentional Talk and Listening: How to Structure and Lead Productive Mathematical DiscussionsMath 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

Mandy Jansen reposted

Peter Keep
@mathprofpeter.bsky.social

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.

Mandy Jansen reposted

Uncle Duke
@uncleduke1969.bsky.social

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

Mandy Jansen reposted

Cliff Poole 🌹
@cpoolenyc.bsky.social

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.comEntire East Wing expected to be demolished as soon as this weekend, sources sayThe 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.

Mandy Jansen reposted

Erick Lee
@theericklee.bsky.social

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

pbbmath.weebly.comConference Proposals to Clarify Your PracticeThe 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....
Mandy Jansen
@mandymathed.bsky.social

I am vaccinated. I also value herd immunity, so get your shots, please!

Ian Weissman, DO@drianweissman.bsky.social

“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...

cnn.comRespiratory virus season has arrived. What to know about getting this year’s vaccines | CNNIt’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.