Tim Corica
@tcorica.bsky.social
Looooongtime math teacher. Believe in the dignity and respect of every human being.
“carrying out strikes “ = destroying property and murdering people
US carrying out strikes in Venezuela, US official says reut.rs/4bdcY8L
US carrying out strikes in Venezuela, US official says
The United States is carrying out strikes inside Venezuela, a U.S. official told Reuters early on Saturday.
reut.rs
January 3, 2026 at 9:05 AM
“carrying out strikes “ = destroying property and murdering people
20 minutes to watch this would be well-spent in an upper-level HS math class. Note the prevalence of women mathematicians in this cutting-edge work! #iTeachMath #mtbos
@quantamagazine.bsky.social: "The Biggest Breakthroughs in Mathematics: 2025" #mtbos
The Biggest Breakthroughs in Mathematics: 2025
YouTube video by Quanta Magazine
www.youtube.com
December 30, 2025 at 8:28 PM
20 minutes to watch this would be well-spent in an upper-level HS math class. Note the prevalence of women mathematicians in this cutting-edge work! #iTeachMath #mtbos
TIL: A parabola can be constructed based solely on the intersections of lines - no arcs or measurement needed. Easier to show than to tell: www.desmos.com/calculator/g...
Some probs for Ss to come when time permits.
h/t again to The Genius of Gaudi, Alsina and Nelson, p24. #iteachmath #mathtoday
Some probs for Ss to come when time permits.
h/t again to The Genius of Gaudi, Alsina and Nelson, p24. #iteachmath #mathtoday
ParabolaConstruction
www.desmos.com
December 23, 2025 at 11:32 PM
TIL: A parabola can be constructed based solely on the intersections of lines - no arcs or measurement needed. Easier to show than to tell: www.desmos.com/calculator/g...
Some probs for Ss to come when time permits.
h/t again to The Genius of Gaudi, Alsina and Nelson, p24. #iteachmath #mathtoday
Some probs for Ss to come when time permits.
h/t again to The Genius of Gaudi, Alsina and Nelson, p24. #iteachmath #mathtoday
TIL: The area of the parabolic segment between x=A and x=A+B depends *only* upon the value of B. This applies to any quadratic. h/t The Genius of Gaudi, Alsina and Nelson, MAA Press, p25. #iteachmath #mathtoday
A Desmos illustration: www.desmos.com/calculator/o...
A Desmos illustration: www.desmos.com/calculator/o...
ParabolaSegmentArea
www.desmos.com
December 23, 2025 at 1:17 AM
TIL: The area of the parabolic segment between x=A and x=A+B depends *only* upon the value of B. This applies to any quadratic. h/t The Genius of Gaudi, Alsina and Nelson, MAA Press, p25. #iteachmath #mathtoday
A Desmos illustration: www.desmos.com/calculator/o...
A Desmos illustration: www.desmos.com/calculator/o...
#mtbos #iteachmath Geez, I use examples like this in my A2 classes!
FOX: If you cut something by 100%, the cost goes down to 0. If you cut it by 600%, the drug companies are actually paying you
LUTNICK: What he's saying is if a drug was $100 and you bring it down to $13, it's down 7 times
F: Not a 600% cut
L: But it's 700% higher price before. It's down 700% now
LUTNICK: What he's saying is if a drug was $100 and you bring it down to $13, it's down 7 times
F: Not a 600% cut
L: But it's 700% higher price before. It's down 700% now
December 19, 2025 at 3:31 AM
#mtbos #iteachmath Geez, I use examples like this in my A2 classes!
Reposted by Tim Corica
Reaching the Masses: Six Authors on Public Outreach
[about Mathematics]
A Zoom conversation with:
Keith Devlin
Marcus du Sautoy
Jordan Ellenberg
Sarah Hart
John Allen Paulos
Steven Strogatz
ams.org/journals/not...
PDF: ams.org/journals/not...
[about Mathematics]
A Zoom conversation with:
Keith Devlin
Marcus du Sautoy
Jordan Ellenberg
Sarah Hart
John Allen Paulos
Steven Strogatz
ams.org/journals/not...
PDF: ams.org/journals/not...
December 18, 2025 at 11:20 PM
Reaching the Masses: Six Authors on Public Outreach
[about Mathematics]
A Zoom conversation with:
Keith Devlin
Marcus du Sautoy
Jordan Ellenberg
Sarah Hart
John Allen Paulos
Steven Strogatz
ams.org/journals/not...
PDF: ams.org/journals/not...
[about Mathematics]
A Zoom conversation with:
Keith Devlin
Marcus du Sautoy
Jordan Ellenberg
Sarah Hart
John Allen Paulos
Steven Strogatz
ams.org/journals/not...
PDF: ams.org/journals/not...
Trump reveals his health care policy: "You can give up certain products. You could give up medicine. Under the China policy, every child can get many medications. They only need aspirin or cough syrup. They don’t need that many. You don’t need lots of checkups for your daughter. 2 or 3 is nice."
December 17, 2025 at 3:49 AM
Trump reveals his health care policy: "You can give up certain products. You could give up medicine. Under the China policy, every child can get many medications. They only need aspirin or cough syrup. They don’t need that many. You don’t need lots of checkups for your daughter. 2 or 3 is nice."
I missed this, having been overwhelmed by the blackheartedness and narcissim of Trump's post. But @sethabramson.bsky.social makes an important point here.
Trump posted this without knowing Nick Reiner had been arrested. He posted it apparently assuming that one of his fans had murdered Rob Reiner. So if you want to know how Trump will react once his fans start murdering his enemies, now you know. He'll celebrate and blame his enemies.
Trump offers incendiary political message about Rob Reiner’s death
Two people have been found dead at the home of Hollywood director Rob Reiner, officials said.
www.cnn.com
December 15, 2025 at 7:39 PM
I missed this, having been overwhelmed by the blackheartedness and narcissim of Trump's post. But @sethabramson.bsky.social makes an important point here.
Reposted by Tim Corica
The far-right has spent the past several years accusing the left of teaching conspiracies and propaganda and indoctrinating children into extreme ideologies.
Now, as you may have guessed, they're doing what they accused the left of doing, but it's probably worse than you think.
My latest.
Now, as you may have guessed, they're doing what they accused the left of doing, but it's probably worse than you think.
My latest.
K-12 Indoctrination: Every Accusation is a Confession
MAGA spent years yelling about propaganda in schools — to get their own in
nobody-wants-this.ghost.io
December 14, 2025 at 12:03 PM
The far-right has spent the past several years accusing the left of teaching conspiracies and propaganda and indoctrinating children into extreme ideologies.
Now, as you may have guessed, they're doing what they accused the left of doing, but it's probably worse than you think.
My latest.
Now, as you may have guessed, they're doing what they accused the left of doing, but it's probably worse than you think.
My latest.
Reposted by Tim Corica
i’m not crying you’re crying
xkcd: Fifteen Years
xkcd: Fifteen Years
Fifteen Years
xkcd.com
November 25, 2025 at 1:58 AM
i’m not crying you’re crying
xkcd: Fifteen Years
xkcd: Fifteen Years
Reposted by Tim Corica
My students liked these arithmetic sequence number puzzles when we were trying to learn something similar. mathequalslove.net/step-puzzles/
November 21, 2025 at 10:41 PM
My students liked these arithmetic sequence number puzzles when we were trying to learn something similar. mathequalslove.net/step-puzzles/
Reposted by Tim Corica
"When the members of Congress in their video urge what seems to be the entire military not to follow illegal orders, they may unintentionally blur the very lines that keep the system functioning." www.thebulwark.com/p/what-ameri...
What Americans Should Understand About the Military Disobeying Illegal Orders
And why it matters there are two military oaths.
www.thebulwark.com
November 21, 2025 at 8:30 PM
"When the members of Congress in their video urge what seems to be the entire military not to follow illegal orders, they may unintentionally blur the very lines that keep the system functioning." www.thebulwark.com/p/what-ameri...
Three variations on a nice Calculus problem I came across yesterday. #iTeachMath #MTBOS
November 16, 2025 at 2:58 PM
Three variations on a nice Calculus problem I came across yesterday. #iTeachMath #MTBOS
We were there - estimates at least 1500, maybe quite a bit more. Here's my poster:
October 18, 2025 at 7:33 PM
We were there - estimates at least 1500, maybe quite a bit more. Here's my poster:
Reposted by Tim Corica
Some personal news:
I've been fired from the Washington Post in the aftermath of the Charlie Kirk shooting.
Thread incoming.
substack.com/@karenattiah...
I've been fired from the Washington Post in the aftermath of the Charlie Kirk shooting.
Thread incoming.
substack.com/@karenattiah...
The Washington Post Fired Me — But My Voice Will Not Be Silenced.
I spoke out against hatred and violence in America — and it cost me my job.
substack.com
September 15, 2025 at 11:07 AM
Some personal news:
I've been fired from the Washington Post in the aftermath of the Charlie Kirk shooting.
Thread incoming.
substack.com/@karenattiah...
I've been fired from the Washington Post in the aftermath of the Charlie Kirk shooting.
Thread incoming.
substack.com/@karenattiah...
DJT: "I could stand in the middle of Fifth Avenue and shoot somebody, and I wouldn't lose any voters, OK? It's, like, incredible."
If he did:
Hegseth would say the victim was a narcotrafficker and would praise Trump for his “lethality”.
AND...
If he did:
Hegseth would say the victim was a narcotrafficker and would praise Trump for his “lethality”.
AND...
September 9, 2025 at 6:26 PM
DJT: "I could stand in the middle of Fifth Avenue and shoot somebody, and I wouldn't lose any voters, OK? It's, like, incredible."
If he did:
Hegseth would say the victim was a narcotrafficker and would praise Trump for his “lethality”.
AND...
If he did:
Hegseth would say the victim was a narcotrafficker and would praise Trump for his “lethality”.
AND...
Cell phones are essentially useless when they are not plugged in.
September 8, 2025 at 4:47 PM
Cell phones are essentially useless when they are not plugged in.
Reposted by Tim Corica
“We should not have to live in a country where the Government can seize anyone who looks Latino, speaks Spanish, and appears to work a low wage job. Rather than stand idly by while our constitutional freedoms are lost, I dissent.” www.nbcnews.com/politics/sup...
Supreme Court lifts limits on roving immigration patrols in Los Angeles area
The decision prompted liberal Justice Sonia Sotomayor to say in dissent that she would not "stand idly by while our constitutional freedoms are lost."
www.nbcnews.com
September 8, 2025 at 4:11 PM
“We should not have to live in a country where the Government can seize anyone who looks Latino, speaks Spanish, and appears to work a low wage job. Rather than stand idly by while our constitutional freedoms are lost, I dissent.” www.nbcnews.com/politics/sup...
Reposted by Tim Corica
Gift link to an excellent column by @willbunch.bsky.social share.inquirer.com/329Lm0
“If Trump’s “Department of War” is serious about staging its first battle on the shores of Lake Michigan, it picked the wrong fight.” #WinninUgly
“If Trump’s “Department of War” is serious about staging its first battle on the shores of Lake Michigan, it picked the wrong fight.” #WinninUgly
Trump wants to make war on Chicago. He picked the wrong fight | Will Bunch
President Trump's stunning online threat against America's third-largest city will test the power of the resistance.
share.inquirer.com
September 8, 2025 at 11:45 AM
Gift link to an excellent column by @willbunch.bsky.social share.inquirer.com/329Lm0
“If Trump’s “Department of War” is serious about staging its first battle on the shores of Lake Michigan, it picked the wrong fight.” #WinninUgly
“If Trump’s “Department of War” is serious about staging its first battle on the shores of Lake Michigan, it picked the wrong fight.” #WinninUgly
Reposted by Tim Corica
'Every person who pumped his fist at Trump’s news conference should pause and think very hard about letting him, or any president, expand the definition of war until due process dies.' - @davidfrenchjag.bsky.social www.nytimes.com/2025/09/07/o...
Opinion | It Doesn’t Seem Wise to Let Trump Decide What War Is
www.nytimes.com
September 7, 2025 at 7:12 PM
'Every person who pumped his fist at Trump’s news conference should pause and think very hard about letting him, or any president, expand the definition of war until due process dies.' - @davidfrenchjag.bsky.social www.nytimes.com/2025/09/07/o...
Reposted by Tim Corica
People from all over are showing up for DC. This is not a moment. It’s a movement. We are united in our demands. We are all DC! #FreeDC
September 6, 2025 at 6:08 PM
People from all over are showing up for DC. This is not a moment. It’s a movement. We are united in our demands. We are all DC! #FreeDC
Reposted by Tim Corica
Seven countries currently get 100 percent of their electricity from renewable energy. Norway and Costa Rica are at 98 percent
September 6, 2025 at 8:45 PM
Seven countries currently get 100 percent of their electricity from renewable energy. Norway and Costa Rica are at 98 percent
Reposted by Tim Corica
This freakin’ story, man….
How a Top Secret SEAL Team 6 Mission Into North Korea Fell Apart www.nytimes.com/2025/09/05/u...
How a Top Secret SEAL Team 6 Mission Into North Korea Fell Apart www.nytimes.com/2025/09/05/u...
How a Top Secret SEAL Team 6 Mission Into North Korea Fell Apart
www.nytimes.com
September 5, 2025 at 3:05 PM
This freakin’ story, man….
How a Top Secret SEAL Team 6 Mission Into North Korea Fell Apart www.nytimes.com/2025/09/05/u...
How a Top Secret SEAL Team 6 Mission Into North Korea Fell Apart www.nytimes.com/2025/09/05/u...