Brendan W. Sullivan
professorbrendan.bsky.social
Brendan W. Sullivan
@professorbrendan.bsky.social
Asst. Prof. of Mathematics, Emmanuel College (Boston, MA)
🔗🌲: https://linktr.ee/professorbrendan
I'm at this webinar right now about #RCV and Santa Claus just entered the chat !?!?
August 13, 2025 at 6:28 PM
Great point about product vs. process in this book review on AI in education:

"Learning requires critical engagement with productive failure," but "learners often mistake our intentions because education systems and our culture put so much emphasis on grades"

www.tandfonline.com/doi/full/10....
July 9, 2025 at 5:44 PM
Reposted by Brendan W. Sullivan
My "Math, Revealed" series is freely available to anyone -- no paywall! -- in the thread below.
July 4, 2025 at 12:07 AM
Reposted by Brendan W. Sullivan
Whenever someone reports a percentage but not an absolute number, ask yourself why;
whenever someone reports an absolute number but not a percentage, ask yourself why
July 2, 2025 at 10:15 PM
"Next semester, do less that means more"

Thinking about what this might mean for a calculus course. What can we do less of to make space for more meaningful learning experiences?
My recommendation for adjusting your pedagogy to accommodate the existence of LLMs is to focus down to the essence of the learning experience, rather than layering on more stuff. www.insidehighered.com/opinion/colu...
For Learning, Focus on the Essence and the Experiences
The threat of LLMs is an invitation to get to the roots, rather than layering on more, more, more.
www.insidehighered.com
June 23, 2025 at 3:38 PM
My 7-year-old has made up something she calls an "equation joke":

Q: Why was 3 afraid of 5?

A: Because 5 8 13!

#TMWYK
June 22, 2025 at 11:14 PM
Reposted by Brendan W. Sullivan
My new #math series in the New York Times, "Math Revealed," is aimed at everyone, whether you love math or not. Have a look! You can read it here for free without a subscription. www.nytimes.com/interactive/...
In Taxicab Geometry, Pi Equals 4 and Circles Aren’t Round (Gift Article)
In the world of taxicab geometry, even the Pythagorean theorem takes a back seat.
www.nytimes.com
June 9, 2025 at 10:00 AM
Reposted by Brendan W. Sullivan
Today's example of Betteridge's Law of Headlines comes to us via the Boston Globe:

Trump says Harvard is teaching ‘remedial mathematics.’ Is there any truth to that?
www.bostonglobe.com/2025/06/08/n...

Explanation of Betteridge's Law:
en.wikipedia.org/wiki/Betteri...
June 8, 2025 at 7:23 PM
Reposted by Brendan W. Sullivan
We lament that students are disengaged from the important parts of learning and yet here are professors modeling the same kind of disengagement. Where does this end? I'm very sympathetic to the problems of too many students, not enough time. Those were the circumstances for my entire career.
May 14, 2025 at 12:21 PM
Reposted by Brendan W. Sullivan
...allowing an LLM to make your presentation from your notes is to actively avoid what is, in reality, part of the creation of that presentation. I've been doing a couple of these things a week since January and I can tell you that making the slides always always always results in changes.
May 14, 2025 at 12:20 PM
Reposted by Brendan W. Sullivan
2. But the more pernicious risk may be what I call "self-alienation" that is you gradually remove yourself from the experience of your job until you've entirely lost touch with what is and meaningful about this work. Processing student writing with an LLM is not the same thing as reading it...
May 14, 2025 at 12:19 PM
Reposted by Brendan W. Sullivan
1. Faculty who use LLMs for core aspects of their labor are inviting their own replacement. This is obvious and a cycle that will mirror what happened with adjunctification. You are showing you are unnecessary. www.insidehighered.com/opinion/blog...
Great ready for faculty bot-ification
If we want there to be such a thing as college faculty, that is.
www.insidehighered.com
May 14, 2025 at 12:18 PM
Reposted by Brendan W. Sullivan
We are right at one month away from the 2025 Grading Conference (June 11--13), and have just posted the schedule. Check out all the amazing presentations we will have this year!

www.centerforgradingreform.org/grading-conf...
The Grading Conference
www.centerforgradingreform.org
May 12, 2025 at 3:37 PM
Reposted by Brendan W. Sullivan
The new pope has a BS in mathematics from Villanova, which explains how he was so successful at becoming the largest cardinal.
May 8, 2025 at 5:32 PM
Reposted by Brendan W. Sullivan
If we do not find an alternative source of funding, this means that the US will not be represented in ongoing conversations with the global community about issues in mathematics education.

The isolationism is not just political, it is also intellectual and will have consequences for decades.
May 8, 2025 at 12:46 PM
Reposted by Brendan W. Sullivan
I am the current chair of the US National Commission for Mathematics Instruction. Our commission represents the US in an international community of mathematics education under the auspices of the National Academy of Sciences.

Our very modest NSF funding has not been renewed. #iteachmath
May 8, 2025 at 12:44 PM
"In a data-driven society, numeracy is essential for making decisions evaluating information and holding leaders accountable. Civil rights leader Bob Moses rightfully called math literacy the civil rights issue of the 21st century."
Elevating mathematical thinking will bring more students to the forefront of democracy and prosperity, according to this new op-ed by math professor @ismarvolic.bsky.social and filmmaker Vicki Abeles, both speakers from our #TMO25 conference.

www.mercurynews.com/2025/05/07/o...
Opinion: Why American democracy and prosperity depend on mathematical literacy
In a data-driven society, numeracy is central to civic life, and yet too many Americans are numerically illiterate.
www.mercurynews.com
May 7, 2025 at 6:30 PM
Reposted by Brendan W. Sullivan
I would actually prefer it if my discipline wasn't used as a proxy for intelligence / academic worth in the culture wars.
Math education front and center in the McMahon/Trump assault on universities. Here's Harvard's reporting on their new math class: www.thecrimson.com/article/2024... #iTeachMath #MathSky
May 6, 2025 at 5:00 PM
Reposted by Brendan W. Sullivan
Fun fact I just learned: Google Sheets does precedence wrong. It interprets "=-A2^2" as (-A2)^2 rather than -(A2^2).
May 5, 2025 at 7:55 PM
Great suggestions here for math instructors at all levels:

1. Meet students where they are
2. Show students that instructors authentically care about their learning
3. Provide "interesting, challenging and joyful work to all students"
May 5, 2025 at 2:57 PM
Reposted by Brendan W. Sullivan
Today is Bandcamp Friday.
May 2, 2025 at 1:25 PM
Reposted by Brendan W. Sullivan
And what better place to talk about alternative grading than at the Grading Conference, June 11--13? 😄
May 1, 2025 at 3:11 PM
"We are so familiar with the concept of linearity that we impose our linear frame of reference on data we observe in the real world."

This makes me wonder whether the abundance of proportional reasoning problems in early school math conditions us to see everything as linear.
May 1, 2025 at 4:34 PM
"A lover of puzzles and crosswords while growing up in Pittsburgh during the Great Depression, Mrs. Parsons deciphered German military messages that had been created by an Enigma machine."
Julia Parsons, a U.S. Navy code breaker during World War II who was among the last survivors of a top-secret team of women that unscrambled messages to and from German U-boats, has died at 104.
Julia Parsons, U.S. Navy Code Breaker During World War II, Dies at 104
Soon after her officer training in Washington, she was recruited to a classified code-breaking team. She kept her work secret for decades, even from her family.
www.nytimes.com
May 1, 2025 at 1:23 PM
Reposted by Brendan W. Sullivan
Meet Padi Fuster Aguilera, a scientist who refuses to stay silent

A Catalan mathematician, postdoctoral researcher at the University of Colorado-Boulder and outspoken advocate for social justice, Padi Fuster Aguilera stands at the intersection of science, education and activism.
Meet Padi Fuster Aguilera, a scientist who refuses to stay silent
A Catalan mathematician, postdoctoral researcher at the University of Colorado-Boulder and outspoken advocate for social justice, Padi Fuster Aguilera stands at the intersection of science, education and activism.
coloradocommunitymedia.com
April 30, 2025 at 1:00 PM