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Dave Kung

@dtkung.bsky.social
1.2K followers 678 following 569 posts

Mathematician, policy wonk, joyful conspirator, violinist, runner. Exec. Dir. at TPSE Math & Independent math ed consultant after stints for UT Dana Center, MAA, SMCM, Fudan U., Lingnan U. & the Great Courses. Part of the exhausted resistance.

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Dave Kung @dtkung.bsky.social · 30/09/2026
Help, #MathSky community: Trying to get a handle on how different techniques of integration are covered at different types of institutions. Take 2 minutes (I swear) and fill out this quick survey: forms.gle/hk9nfSwwme82...
Different techniques of integration, including integration by parts, trig substitution, trig integrals, and partial fractions.
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Dave Kung @dtkung.bsky.social · 27/09/2026
What?!?! Am American just won the World Cycling Championship! Congrats, Brandon McNulty
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🌬Breeze @cool-summer-breeze.bsky.social · 24/09/2026
This is the Stolen Neighbors Quilt. Each of the 11,000 squares represents a person taken by ICE in Minnesota.
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Dave Kung @dtkung.bsky.social · 20/09/2026
A brutally honest heart-wrenching look at segregation, privilege and hard choices we make to simultaneously try to do what's right for our kids and for the flawed systems they are navigating. www.nytimes.com/2026/09/20/m...
nytimes.com
In Fighting for Every Black Child, Did I Betray My Own? (Gift Article)
A decade ago, I made a decision about my daughter’s education that I hoped would challenge New York City’s separate and unequal school system. Now 16, she thinks I made the wrong choice.
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Dave Kung @dtkung.bsky.social · 16/09/2026
Great spot for a math person who loves teaching:
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Dave Kung @dtkung.bsky.social · 13/09/2026
Immigrants - they get the job done.
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Dave Kung @dtkung.bsky.social · 12/09/2026
Loving these example sentences, @duolingoesp.bsky.social !
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Dave Kung @dtkung.bsky.social · 08/09/2026
Excited to see this (and the related Math Education of Teachers) coming out shortly!
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Dave Kung @dtkung.bsky.social · 08/09/2026
Happy Labor Day! Hope everyone enjoyed a 3-day weekend celebrating things like our usual 2-day weekend!
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Dave Kung @dtkung.bsky.social · 04/09/2026
Admit it. You typed it just because you could.
The NYTimes spelling bee doesn't take "zendaya".
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Dave Kung @dtkung.bsky.social · 01/09/2026
@petridishes.bsky.social is hilarious as usual. www.theatlantic.com/newsletters/...
theatlantic.com
Everything Is Called America Now
Every lake is Lake America, and every gulf is the Gulf of America.
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Dave Kung @dtkung.bsky.social · 27/08/2026
Why study math in the age of AI? @mathyawp.bsky.social has some great answers - in the form of a letter to his students: francissu.substack.com/p/the-enduri...
francissu.substack.com
The Enduring Value of Math, in an Age of AI
Thoughts I’ll share at the start of my upper division math course
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Dave Kung @dtkung.bsky.social · 23/08/2026
If you've taken the time to read one Black scholar's take on race and class at Bates College in @theatlantic.com, be sure to balance it out by reading another Black scholar's views: newsletter.thedriftmag.com/p/racism-and...
newsletter.thedriftmag.com
Racism and labor at Bates: the other side of the story
Andrew Baker responds to Tyler Austin Harper
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Dave Kung @dtkung.bsky.social · 28/07/2026
Something so refreshing about elected officials using data and logical reasoning to o make cogent arguments. More of this please!
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Dave Kung @dtkung.bsky.social · 25/07/2026
The right answer is 3:42.66. (I posted about this when it happened so it's not really a spoiler.) Better question: Without looking anything up, what mile event has a world record near each of the other four times? I'll go first: 1:42.66 - speed skating on a 400m track?
Question from the NYTimes news quiz about Josh Kerr's new mile world record. Options (all with 42.66 seconds added) are 1 minute, 2 minutes, 3 minutes, 4 minutes and 5 minutes.
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Dave Kung @dtkung.bsky.social · 25/07/2026
Surprised at the distractors here, @nytimes.com. If you know anything about running, there's only one possibility. (For reference, the 1855 world record was 4:28, and 1:42 is faster than anyone can do a mile on ice skates.)
Options for Josh Kerr's new mile world record: 1 minute 42.66 seconds, 2 minutes 42.66 seconds, 3 minutes 42.66 seconds, 4 minutes 42.66 seconds, and 5 minutes 42.66 seconds.
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Dave Kung @dtkung.bsky.social · 24/07/2026
If you haven't seen #CountedOut (documentary about mathematics education), here's your chance - from the comfort of your own home! (Aug 8, 4pm) watch.eventive.org/countedout/p...
Counted Out poster. "Math is power."
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Dave Kung @dtkung.bsky.social · 18/07/2026
That's Josh Kerr just after setting a new mile world record: 3:42.66, taking down Hicham El Guerrouj' legendary record from 1999 (3:43.13). Amazing.
Josh Kerr throwing his first in the air after the finish.
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Dave Kung @dtkung.bsky.social · 17/07/2026
Listen to the students: "New technologies have harmed student learning at both the HS and collegiate levels. To focus on the SAT...misses the point: Student achievement will continue to decline as long as more fundamental barriers to student success persist." www.dailycal.org/opinion/edit...
dailycal.org
SAT misses the point: Tech, not admissions, drives student underpreparedness
Recognizing that the student underpreparedness extends beyond admissions, the university ought to commit to student success rather than cynically limit entry for low-income students while ignoring the...
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Dave Kung @dtkung.bsky.social · 15/07/2026
Here's the comment I submitted regarding the proposed changes to federal grant processes.
Comment:
If I were a strategist for the Chinese Government, I would be ecstatic at this rule. It would further degrade the US's standing in the world's scientific community, drive hundreds of the top minds out of the US (many to China) and keep a generation of the brightest Chinese students at home instead of heading to the US (as generations before - including my father - have done.) If implemented, these changes will be seen as among the worst self-inflicted policy debacles in US history. The destruction of American scientific dominance will be swift. Its reconstruction will take decades.
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Dave Kung @dtkung.bsky.social · 14/07/2026
Love to see someone doing the math!
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Dave Kung @dtkung.bsky.social · 14/07/2026
I made it with 15 minutes to spare.
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Dave Kung @dtkung.bsky.social · 13/07/2026
Here's a nice graphic showing Straits of Hormuz traffic. (Got tired of intermittent reporting and went searching for raw data.) Daily updates here: www.shipfinder.com/special/hormuz
Graph of in and outbound ship traffic over the last month, dropping significantly over the last few days.
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Dave Kung @dtkung.bsky.social · 09/07/2026
Weird. Flying DCA to DFW to work with the math folks at UT Arlington tomorrow. We boarded at DCA. Then we deplaned. Then we watched as a bunch of cops conferred with a bunch of suits. Mostly they just looked around. Officially it's a "scanning issue". Right. Boarding again in a few...
Cops standing around talking at an American gate at DCA.
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Dave Kung @dtkung.bsky.social · 08/07/2026
Want to know how access to AI and LLMs impacts student behaviors and student performance? A fascinating new pre-print uses ALEKS data to give some preliminary answers. The title serves as the 4 word overview: Faster Completion, Less Learning. 1/n
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Dave Kung @dtkung.bsky.social · 07/07/2026
At least in 2002, the last time the US was looking dangerous at the #WorldCup, we made a good showing in our exit. (A botched hand ball call away from penalty kicks vs Germany.) That was humbling last night. Kudos to Belgium for rising above the corruption.
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Dave Kung @dtkung.bsky.social · 06/07/2026
What a crazy, exciting, roller-coaster of a game!
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Dave Kung @dtkung.bsky.social · 06/07/2026
Vamos Mexico!
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Dave Kung @dtkung.bsky.social · 05/07/2026
Balogun is back in! FIFA reinstated him - presumably because the ref who red carded him shouldn't have watched the slow mo replay? (No official reason given.) www.foxsports.com/stories/socc...
foxsports.com
USA Star Folarin Balogun Cleared To Play In World Cup Match vs. Belgium
This is a huge turn for the USA ahead of its World Cup round of 16 match against Belgium.
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Dave Kung @dtkung.bsky.social · 04/07/2026
On our way to Philly to watch France v. Paraguay. 100 degrees and getting hotter 🥵 @mathyadriana.bsky.social #worldcup
Two people sitting in a car smiling.
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Dave Kung @dtkung.bsky.social · 04/07/2026
Lots of love to Capo Verde for the most entertaining game of the tournament so far. #WorldCup
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Dave Kung @dtkung.bsky.social · 04/07/2026
OK, I don't know my World Cup history. Are we looking at potentially the knock-out round upset in history? What are the other contenders? It would be bigger than South Korea's improbable run to the semis back in 2002. #GoCapoVerde!
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Dave Kung @dtkung.bsky.social · 02/07/2026
Hmm. I've seen a lot of it lately at the World Cup.
The NYT bee doesn't take the word "megging" short for nutmegging among soccer players.
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Aaron Rupar @atrupar.com · 02/07/2026
Folarin Balogun, who is a US citizen because he was born here, scores a go-ahead goal for the US team in a knockout game. Score one for birthright citizenship.
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Dave Kung @dtkung.bsky.social · 28/06/2026
FIFA: Messi now stands alone among the all time World Cup goal scorers. Marta: ...um, could we have a word please?
FIFA list of all time leading scorers at the World Cup only has men on the list.
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Climate.us @climate.us · 26/06/2026
We got a big bump in traffic yesterday when people learned about us on NPR. Thank you to @npr.org for covering our launch and bringing our story to people's attention! And thank you to all our new followers. We can do this together! 🌍️🧪💪 #ClimateAction #ClimateForUs #ProtectScience
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Dave Kung @dtkung.bsky.social · 19/06/2026
Hey @duolingoesp.bsky.social - you gotta work on your timing. @usmnt.ussoccer.com plays Australia at 3 this afternoon.
Screenshot of Duolingo: "You've earned the Australia suit!"
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Dave Kung @dtkung.bsky.social · 14/06/2026
Gotta feel a little sorry for New Jersey. The games are literally in New Jersey ... but somehow just stating that isn't good enough. (See also: Giants & Jets)
2026 World Cup sign: "We are New York New Jersey."
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Dave Kung @dtkung.bsky.social · 13/06/2026
Interested to see what comes of this report. Sure seems like fossil fuel companies are working hard to make sure they can keep baking the planet - making money while people suffer. www.politico.com/news/2026/06...
politico.com
Inside the campaign to discredit a key climate science report
An emerging field of research that can measure how much climate change has worsened individual disasters is under attack by friends of the fossil fuel industry. Billions of dollars are at stake.
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Democracy Now! @democracynow.org · 09/06/2026
Author @quinnslobodian.com says Elon Musk's business empire and his work for the Trump administration are closely connected. DOGE was not about demolishing the government, but a way to "refashion and reformat" it so that Musk and his companies become "an indispensable part of the infrastructure."
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Dave Kung @dtkung.bsky.social · 04/06/2026
Who could have predicted that Republicans who got primaried would close the strait of Hormuz!?!
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Dave Kung @dtkung.bsky.social · 03/06/2026
Hoping these monuments - so beautiful at night - live to see a return to the functioning democracy fought for by so many.
World war 2 memorialLincolnWW1
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Dave Kung @dtkung.bsky.social · 31/05/2026
"We'll have four mini spritzes. " "Great - a group of three and one more." "No - we'll take two groups of two." #BetterLivingThroughMath #DrinkingWithMathematicians
Mini spritzes are one for 9, two for 16, three for 24.
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Dave Kung @dtkung.bsky.social · 24/05/2026
Math peeps: excited to see more math orgs here on @bsky.app - they can help build a more robust community with their reach: @joinmaa.bsky.social @amstatnews.bsky.social @comapmath.bsky.social @amermathsoc.bsky.social
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COMAP Math @comapmath.bsky.social · 14/05/2026
Excited to co-host the 2026 Modernizing Undergraduate Math Summit at Harvard next week with MAA, AMATYC, ASA, and SIAM. Leaders across higher ed will collaborate on the future of undergraduate mathematics in an AI-driven world. #MathEducation #HigherEd #STEMEducation
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Dave Kung @dtkung.bsky.social · 10/05/2026
The machines are doing math on the level of top researchers. Not really sure what that means. At least for now it's answering questions that humans are posing...
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Lisa Song @lisalsong.bsky.social · 09/05/2026
1/ Tear gas was created to incapacitate grown men. So when I started seeing reports of kids hurt by tear gas deployed by federal immigration agents, I wondered how often it was happening. My colleagues and I started to count:
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Dave Kung @dtkung.bsky.social · 28/04/2026
So depressing. The destruction of the US dominance in science and math - for what?
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Dave Kung @dtkung.bsky.social · 26/04/2026
Absurd running this morning at the @londonmarathon.bsky.social. Kiplimo runs under the world record ... and gets 3rd place. Kejelcha runs under 2:00, and gets 2nd. Sawe runs away with it in 1:59:30. Unbelievable. 4:30/mile. 67.5 sec/400m. A sprint for 26.2 miles. www.youtube.com/watch?v=1voT...
youtube.com
SUB 2-HOUR MARATHONS for Sebastian Sawe and Yomif Kejelcha at the 2026 TCS London Marathon!
YouTube video by FloTrack
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Dave Kung @dtkung.bsky.social · 23/04/2026
Anyone for a little Quantitative Reasoning?
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