November 30, 2024 at 6:39 PM
July 8, 2025 at 1:21 PM
Mysterious symbol-pushing nonsense:
(g(h(x))' = g'(h(x))*h'(x)
Obvious:
dg / dx = (dg / dh) * (dh /dx)
#teachmath
(g(h(x))' = g'(h(x))*h'(x)
Obvious:
dg / dx = (dg / dh) * (dh /dx)
#teachmath
February 28, 2025 at 4:58 PM
Mysterious symbol-pushing nonsense:
(g(h(x))' = g'(h(x))*h'(x)
Obvious:
dg / dx = (dg / dh) * (dh /dx)
#teachmath
(g(h(x))' = g'(h(x))*h'(x)
Obvious:
dg / dx = (dg / dh) * (dh /dx)
#teachmath
What are some "homeless" topics in the undergrad math curriculum? I don't mean the usual "everyone should take this course" debate, but stuff that slips through the cracks b/c there's no standard course to fit it into. Ex: Fourier series, polyhedra, multivariable real analysis. #mathsky #teachmath
February 26, 2025 at 5:11 PM
What are some "homeless" topics in the undergrad math curriculum? I don't mean the usual "everyone should take this course" debate, but stuff that slips through the cracks b/c there's no standard course to fit it into. Ex: Fourier series, polyhedra, multivariable real analysis. #mathsky #teachmath
A recurring weakness I see in college is an inability to work with lines with any tool other than slope-intercept form. In particular, students struggle when we work with lines as geometric objects or parameterized paths and not as graphs of functions. #teachmath
February 10, 2025 at 7:12 PM
A recurring weakness I see in college is an inability to work with lines with any tool other than slope-intercept form. In particular, students struggle when we work with lines as geometric objects or parameterized paths and not as graphs of functions. #teachmath
My age today is NOT a prime number, BUT a lot of people think my age is a prime number? How old am I? #mtbos #teachmath #mathstoday
September 18, 2025 at 4:17 PM
My age today is NOT a prime number, BUT a lot of people think my age is a prime number? How old am I? #mtbos #teachmath #mathstoday
Me: If f(x,y)=|x|y/x continuous at (0,0)?
ChatGPT before class: No.
ChatGPT during class: Yes.
I got a different teaching moment than the one I was planning. #teachmath
ChatGPT before class: No.
ChatGPT during class: Yes.
I got a different teaching moment than the one I was planning. #teachmath
February 5, 2025 at 7:15 PM
Me: If f(x,y)=|x|y/x continuous at (0,0)?
ChatGPT before class: No.
ChatGPT during class: Yes.
I got a different teaching moment than the one I was planning. #teachmath
ChatGPT before class: No.
ChatGPT during class: Yes.
I got a different teaching moment than the one I was planning. #teachmath
Reading Knotting Numbers with my class #ethnomath #MathIsHuman #DataViz #MathCommunity #MathEd #TeachMath #MathTeachers #MathChat #MathForAll #MathEquity #SocialJusticeMath #MathIsHuman #STEMCommunity #MathInRealLife #MathStory #CommunityOfPractice #MathCulture
April 29, 2025 at 11:04 PM
Reading Knotting Numbers with my class #ethnomath #MathIsHuman #DataViz #MathCommunity #MathEd #TeachMath #MathTeachers #MathChat #MathForAll #MathEquity #SocialJusticeMath #MathIsHuman #STEMCommunity #MathInRealLife #MathStory #CommunityOfPractice #MathCulture
This is what my students said about community in Week 1 of the course #MathCommunity #MathEd #TeachMath #MathTeachers #MathChat #MathForAll #MathEquity #SocialJusticeMath #MathIsHuman #STEMCommunity #DataViz #MathInRealLife #MathStory #CommunityOfPractice #MathCulture
May 22, 2025 at 4:07 AM
This is what my students said about community in Week 1 of the course #MathCommunity #MathEd #TeachMath #MathTeachers #MathChat #MathForAll #MathEquity #SocialJusticeMath #MathIsHuman #STEMCommunity #DataViz #MathInRealLife #MathStory #CommunityOfPractice #MathCulture
I hate "verify the mean value theorem" problems in calculus. I feel like they undermine the whole point of the theorem.
But I admit it is a hard sell in first year calculus. You really need to prove stuff to appreciate how important it is. #teachmath
But I admit it is a hard sell in first year calculus. You really need to prove stuff to appreciate how important it is. #teachmath
April 7, 2025 at 12:30 AM
I hate "verify the mean value theorem" problems in calculus. I feel like they undermine the whole point of the theorem.
But I admit it is a hard sell in first year calculus. You really need to prove stuff to appreciate how important it is. #teachmath
But I admit it is a hard sell in first year calculus. You really need to prove stuff to appreciate how important it is. #teachmath
How many pieces of chalk? How do you know?
The box can hold 3 layers of these boxes. How many boxes can it hold? How many pieces of chalk would that be?
Share your strategies!
#iteach #edusky #mathsky #teachmath
The box can hold 3 layers of these boxes. How many boxes can it hold? How many pieces of chalk would that be?
Share your strategies!
#iteach #edusky #mathsky #teachmath
March 25, 2025 at 1:03 PM
How many pieces of chalk? How do you know?
The box can hold 3 layers of these boxes. How many boxes can it hold? How many pieces of chalk would that be?
Share your strategies!
#iteach #edusky #mathsky #teachmath
The box can hold 3 layers of these boxes. How many boxes can it hold? How many pieces of chalk would that be?
Share your strategies!
#iteach #edusky #mathsky #teachmath
Recurring theme in stats is that our probabilistic intuition sucks. I love the birthday problem - estimate the probability that 2 people in the room of about 55 have the same birthday. 83% guessed <50%, a majority <20%. Actual answer: 98%. (Match found on checking 5 students) #teachmath
September 22, 2026 at 7:37 PM
Recurring theme in stats is that our probabilistic intuition sucks. I love the birthday problem - estimate the probability that 2 people in the room of about 55 have the same birthday. 83% guessed <50%, a majority <20%. Actual answer: 98%. (Match found on checking 5 students) #teachmath
Calc 3 is a weird class. I spend a ridiculous amount of time just on visualizing and working in 3D but it's hard to sell that it's actually the hard part. If you can get comfortable with that then the rest of the course is mostly just variants of Calc I and II with extra bookkeeping. #teachmath
February 21, 2025 at 5:31 PM
Calc 3 is a weird class. I spend a ridiculous amount of time just on visualizing and working in 3D but it's hard to sell that it's actually the hard part. If you can get comfortable with that then the rest of the course is mostly just variants of Calc I and II with extra bookkeeping. #teachmath
YOU ARE SO COOL. All feeds are completely open to anyone. Just go to Feeds (left-hand menu and just find some). I follow I TeachMath, EduSky, AcademicSky, Disabled In STEM, Disability Justice, Learning Sciences, QuiltSky- you get the point
November 12, 2024 at 3:15 AM
YOU ARE SO COOL. All feeds are completely open to anyone. Just go to Feeds (left-hand menu and just find some). I follow I TeachMath, EduSky, AcademicSky, Disabled In STEM, Disability Justice, Learning Sciences, QuiltSky- you get the point
Thinking about ways to communicate to my data science class how to distinguish using a tool incorrectly from using the wrong tool. Meanwhile, the twins are fighting over how best to use the Magic 8-Ball to locate the remote control. #datascience #teachmath
February 4, 2025 at 3:44 PM
Thinking about ways to communicate to my data science class how to distinguish using a tool incorrectly from using the wrong tool. Meanwhile, the twins are fighting over how best to use the Magic 8-Ball to locate the remote control. #datascience #teachmath
Assignment I might try next semester: have ChatGPT do one of my old exams and have the students grade it. #teachmath #mathsky
November 29, 2025 at 11:42 PM
Assignment I might try next semester: have ChatGPT do one of my old exams and have the students grade it. #teachmath #mathsky
January 15, 2026 at 5:27 AM
Another #boardgame #teachmath problem: An exploding die refers to rolling a standard 6-sided die but on a 6 you keep the 6 and add another roll - and you can keep exploding 6's indefinitely. A number of games use this mechanic. Find the expected value of a 6-sided (or n-sided) exploding die.
January 9, 2025 at 10:54 PM
Another #boardgame #teachmath problem: An exploding die refers to rolling a standard 6-sided die but on a 6 you keep the 6 and add another roll - and you can keep exploding 6's indefinitely. A number of games use this mechanic. Find the expected value of a 6-sided (or n-sided) exploding die.