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Mandy Jansen

@mandymathed.bsky.social

1.7K followers 980 following 420 posts

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.)

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Robert Reich @rbreich.bsky.social · 12h

The 400 richest Americans are now worth a record $6.6 trillion.

The entire bottom 50% of America is worth just $4.2 trillion.

Read that back.

When 400 people control more wealth than half a country’s population, we have a very serious problem.

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Mandy Jansen @mandymathed.bsky.social · 1h

Okay, what? JRME jackets?! Amazing.

Mandy Jansen @mandymathed.bsky.social · 3d

Wonderful. Build on strengths!

Mandy Jansen @mandymathed.bsky.social · 3d

Smart idea! I need to add this to the doc

Mandy Jansen @mandymathed.bsky.social · 3d

Facebook has led to an extensive set of ideas and thoughts. (Somehow I haven't cultivated my network here on BlueSky.) I summarized ideas about how teachers can interact with families / caregivers in this document: docs.google.com/document/d/1...

Family Engagement

Family / Caregiver Engagement Ideas Make sure you've got the parent's name correct in an email, phone call, or parent-teacher conference. [Ask for parents’ first and last names on a survey about eac...

docs.google.com

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Mandy Jansen @mandymathed.bsky.social · 4d

yes! I agree with that for sure.

Mandy Jansen @mandymathed.bsky.social · 4d

My undergraduates (middle school math methods) would like advice and insights for teachers' interactions with parents. Teachers or teacher educators, what advice or ideas would you give to these future teachers?

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Reposted by Mandy Jansen

Nick Covington @covingtonedu.bsky.social · 4d

Neighborhood schools are closing across Arizona. It’s because of vouchers.

"The math is simple: Arizona doesn’t provide enough funding to adequately fund one school system, much less two — a public system open to all and a selective private system." @azmirror.com

azmirror.com/2025/10/06/n...

Neighborhood schools are closing across Arizona. It's because of vouchers.

OPINION: Arizona's $1 billion voucher program is forcing public school closures while subsidizing wealthy families

azmirror.com

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Reposted by Mandy Jansen

John Golden @johngolden.bsky.social · 6d

Egg carton fraction pictures, for #fractionchat or #numbertalk in case they're helpful. docs.google.com/document/d/1... Could not get DDG images to give me partial cartons!

Egg fractions

docs.google.com

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Mandy Jansen @mandymathed.bsky.social · 6d

really cool!

Reposted by Mandy Jansen

Kristina Cooke @kristinacooke.bsky.social · 8d

I spoke to a Venezuelan woman who was arrested in this raid and later released with her 4yo son. She said agents broke down their door, pointed guns at them and made sexualized remarks about Venezuelan women. When she returned to her apartment it was boarded up and all her possessions were gone.

Ted Hesson @tedhesson.bsky.social · 8d

US Border Patrol raid sweeps in citizens, families as Chicago crackdown intensifies, w/ @reneehickman.bsky.social @kristinacooke.bsky.social www.reuters.com/world/us/us-...

US Border Patrol raid sweeps in citizens, families as Chicago crackdown intensifies

U.S. Border Patrol agents deployed to Chicago led a late-night raid on an apartment building this week, rappelling from helicopters onto rooftops and breaking down doors in an operation authorities said targeted gang members but which swept up U.S. citizens and families.

www.reuters.com

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Mandy Jansen @mandymathed.bsky.social · 11d

I am pretty sure that Kit lives in the Boston area.

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Dr. Vaughn Joy @gvaughnjoy.bsky.social · 11d

The tears I just cried.

Jane Fonda, 87, has relaunched The Committee for the First Amendment, the organization of Hollywood stars and filmmakers that her father, Henry Fonda, helped found in September 1947.

May Jane's 550-person endeavor outlive Henry's.
www.committeeforthefirstamendment.com

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Ryan Marino, MD @ryanmarino.bsky.social · 11d

ER doc here! This is a lie. Wait times are up because the American healthcare system is an unsustainable business model and a for-profit national healthcare system just doesn’t work. These problems will continue to get worse until we change that system. It literally has nothing to do with immigrants

Aaron Rupar @atrupar.com · 11d

Vance: "If you're an American citizen & you've been to the hospital in the last few years, you've probably noticed wait times are especially large & very often somebody who's there in the ER is an illegal alien. Why do those people get healthcare benefits at hospitals paid for by American citizens?"

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UD College of Education & Human Development @udcehd.bsky.social · 11d

Congrats to @mandymathed.bsky.social on being named Distinguished Professor of Teacher Education in CEHD! Jansen is the second @udelaware.bsky.social professor to receive this honor recognizing excellence in teacher education scholarship, teaching and service: www.cehd.udel.edu/distinguishe...