Jed
@jedediyah.com
Teacher ◦ Robots and mathy science ◦ He/Him
#ITeachMath #ITeachPhysics #TeamCompSci
#mtbos #PAEMST
https://jedediyah.github.io/
#ITeachMath #ITeachPhysics #TeamCompSci
#mtbos #PAEMST
https://jedediyah.github.io/
Pinned
Jed
@jedediyah.com
· Nov 21
Math educators, where do you fall within the levels of ethical engagement??
arxiv.org/abs/2212.11713
#iteachmath #iteachcs #mtbos
arxiv.org/abs/2212.11713
#iteachmath #iteachcs #mtbos
The message I tried to bring to this discussion was:
IF there is a way to responsibly incorporate #AI into math education, we definitely aren't doing it...
#ITeachMath #mtbos #AIinEducation #AIedu
IF there is a way to responsibly incorporate #AI into math education, we definitely aren't doing it...
#ITeachMath #mtbos #AIinEducation #AIedu
New #DebateMath on AI in Math Education! It was a privilege to largely agree with Cal and Ed.
My opening remarks:
We have a professional responsibility as educators to vet technologies we bring into the classroom. Unfortunately, that’s largely *not* happening.
My opening remarks:
We have a professional responsibility as educators to vet technologies we bring into the classroom. Unfortunately, that’s largely *not* happening.
Debate 48 - Is A.I. Helpful in Math Education?
YouTube video by DebateMath Podcast
youtu.be
January 22, 2026 at 7:31 PM
The message I tried to bring to this discussion was:
IF there is a way to responsibly incorporate #AI into math education, we definitely aren't doing it...
#ITeachMath #mtbos #AIinEducation #AIedu
IF there is a way to responsibly incorporate #AI into math education, we definitely aren't doing it...
#ITeachMath #mtbos #AIinEducation #AIedu
New #DebateMath on AI in Math Education! It was a privilege to largely agree with Cal and Ed.
My opening remarks:
We have a professional responsibility as educators to vet technologies we bring into the classroom. Unfortunately, that’s largely *not* happening.
My opening remarks:
We have a professional responsibility as educators to vet technologies we bring into the classroom. Unfortunately, that’s largely *not* happening.
Debate 48 - Is A.I. Helpful in Math Education?
YouTube video by DebateMath Podcast
youtu.be
January 22, 2026 at 11:58 AM
New #DebateMath on AI in Math Education! It was a privilege to largely agree with Cal and Ed.
My opening remarks:
We have a professional responsibility as educators to vet technologies we bring into the classroom. Unfortunately, that’s largely *not* happening.
My opening remarks:
We have a professional responsibility as educators to vet technologies we bring into the classroom. Unfortunately, that’s largely *not* happening.
Got to give a guest lecture on AI to a Science Ethics course!
Students had fantastic questions. One that stuck out: "How is all this legal?"
Students had fantastic questions. One that stuck out: "How is all this legal?"
January 14, 2026 at 11:16 PM
Got to give a guest lecture on AI to a Science Ethics course!
Students had fantastic questions. One that stuck out: "How is all this legal?"
Students had fantastic questions. One that stuck out: "How is all this legal?"
The number of players on @chess.com who abandon games without resigning has skyrocketed in the past few weeks.
Tried to leave feedback but got the chat bot that told me to clear my browser cache. Thanks AI!
Tried to leave feedback but got the chat bot that told me to clear my browser cache. Thanks AI!
January 14, 2026 at 11:04 PM
The number of players on @chess.com who abandon games without resigning has skyrocketed in the past few weeks.
Tried to leave feedback but got the chat bot that told me to clear my browser cache. Thanks AI!
Tried to leave feedback but got the chat bot that told me to clear my browser cache. Thanks AI!
Reposted by Jed
“i want back my rocking chairs, / solipsist sunsets, / & coastal jungle sounds...”
A poem by Renee Nicole Good, who was murdered by ICE earlier today.
lithub.com/renee-nicole...
A poem by Renee Nicole Good, who was murdered by ICE earlier today.
lithub.com/renee-nicole...
Renee Nicole Good, murdered by ICE, was a prize-winning poet. Here’s that poem.
Renee Nicole Good, 37, mother to a six-year-old boy, was murdered earlier today by an ICE agent in Minneapolis, a few blocks from her home. According to the Minnesota Star Tribune: [An ICE agent] s…
lithub.com
January 8, 2026 at 3:54 AM
“i want back my rocking chairs, / solipsist sunsets, / & coastal jungle sounds...”
A poem by Renee Nicole Good, who was murdered by ICE earlier today.
lithub.com/renee-nicole...
A poem by Renee Nicole Good, who was murdered by ICE earlier today.
lithub.com/renee-nicole...
In #MathsToday we modeled a tide.
Part (e) led to some amazing passionate mathematical arguments!
(e) Our model has four parameters. Could you still model the tide well enough with only three?
Part (e) led to some amazing passionate mathematical arguments!
(e) Our model has four parameters. Could you still model the tide well enough with only three?
January 7, 2026 at 11:07 PM
In #MathsToday we modeled a tide.
Part (e) led to some amazing passionate mathematical arguments!
(e) Our model has four parameters. Could you still model the tide well enough with only three?
Part (e) led to some amazing passionate mathematical arguments!
(e) Our model has four parameters. Could you still model the tide well enough with only three?
Only January 1 and 1998 NCTM is already being saucy!
Happy new #ProblemSolving year! The January Calendar of #math problems is posted!!
Enjoy them w/your students or yourself--please share your thinking & solutions here or on the post.
#iTeachMath #MTBoS #T3Learns #RecreationalMath #MathSky #MathsToday
karendcampe.wordpress.com/2026/01/01/j...
Enjoy them w/your students or yourself--please share your thinking & solutions here or on the post.
#iTeachMath #MTBoS #T3Learns #RecreationalMath #MathSky #MathsToday
karendcampe.wordpress.com/2026/01/01/j...
January Calendar Problems
Happy New Year and welcome to 2026! Here is the January 1998 Calendar of Problems from 28 years ago for some wintertime problem solving enjoyment. I have a few more old Mathematics Teacher1 issues …
karendcampe.wordpress.com
January 1, 2026 at 2:55 PM
Only January 1 and 1998 NCTM is already being saucy!
Looking forward to a #TechFreeJanuary in the classroom to start the new year (with exception for Data Science which was largely tech free up to now).
#ITeachMath #mtbos
#ITeachMath #mtbos
December 31, 2025 at 1:29 AM
Looking forward to a #TechFreeJanuary in the classroom to start the new year (with exception for Data Science which was largely tech free up to now).
#ITeachMath #mtbos
#ITeachMath #mtbos
"Iterating Linear Functions—An Introduction to Dynamical Systems"
1997
Jonathan Choate and (edited by) @hpicciotto.bsky.social
If students are going to understand machine learning, they should start with iteration and fundamentals of dynamical systems.
#MathEdPaperOfTheWeek
#mtbos #ITeachMath
1997
Jonathan Choate and (edited by) @hpicciotto.bsky.social
If students are going to understand machine learning, they should start with iteration and fundamentals of dynamical systems.
#MathEdPaperOfTheWeek
#mtbos #ITeachMath
pubs.nctm.org
December 30, 2025 at 12:15 AM
"Iterating Linear Functions—An Introduction to Dynamical Systems"
1997
Jonathan Choate and (edited by) @hpicciotto.bsky.social
If students are going to understand machine learning, they should start with iteration and fundamentals of dynamical systems.
#MathEdPaperOfTheWeek
#mtbos #ITeachMath
1997
Jonathan Choate and (edited by) @hpicciotto.bsky.social
If students are going to understand machine learning, they should start with iteration and fundamentals of dynamical systems.
#MathEdPaperOfTheWeek
#mtbos #ITeachMath
I gave a talk in 2024 called "Sensitive Dependence on Initial Conditions: How AI Predictably Fails Unpredictably". A dope title!
jedediyah.github.io/aapt2024/
In examples of AI failing where we shouldn't be using AI, I highlighted a behavior nobody should be surprised by: AI encouraging suicide.
jedediyah.github.io/aapt2024/
In examples of AI failing where we shouldn't be using AI, I highlighted a behavior nobody should be surprised by: AI encouraging suicide.
December 29, 2025 at 12:44 AM
I gave a talk in 2024 called "Sensitive Dependence on Initial Conditions: How AI Predictably Fails Unpredictably". A dope title!
jedediyah.github.io/aapt2024/
In examples of AI failing where we shouldn't be using AI, I highlighted a behavior nobody should be surprised by: AI encouraging suicide.
jedediyah.github.io/aapt2024/
In examples of AI failing where we shouldn't be using AI, I highlighted a behavior nobody should be surprised by: AI encouraging suicide.
Reposted by Jed
another robot highlight for 2025: man wearing humanoid mocap suit kicks himself in the balls
December 27, 2025 at 5:27 PM
another robot highlight for 2025: man wearing humanoid mocap suit kicks himself in the balls
In #MathsToday we did one of my favorite activities: Regression by Hand.
Our goal is to model the bounce height h_bounce of a bouncy ball dropped from height h_drop.
#mtbos #ITeachMath
Our goal is to model the bounce height h_bounce of a bouncy ball dropped from height h_drop.
#mtbos #ITeachMath
December 18, 2025 at 9:05 PM
In #MathsToday we did one of my favorite activities: Regression by Hand.
Our goal is to model the bounce height h_bounce of a bouncy ball dropped from height h_drop.
#mtbos #ITeachMath
Our goal is to model the bounce height h_bounce of a bouncy ball dropped from height h_drop.
#mtbos #ITeachMath
Reposted by Jed
Clay letters from ancient Mesopotamia are alive with idiom, sayings, and everyday language that I love.
Here are just a few random ones so you can enjoy them too.
Here are just a few random ones so you can enjoy them too.
December 17, 2025 at 3:47 PM
Clay letters from ancient Mesopotamia are alive with idiom, sayings, and everyday language that I love.
Here are just a few random ones so you can enjoy them too.
Here are just a few random ones so you can enjoy them too.
In #MathsToday we are playing and analyzing Hexapawn as an introduction to machine learning.
You can play and have a machine play itself here:
jedediyah.github.io/hexapawn/
There are two problem sets here: williams-bhs.github.io/docs/hexapaw...
You can play and have a machine play itself here:
jedediyah.github.io/hexapawn/
There are two problem sets here: williams-bhs.github.io/docs/hexapaw...
December 10, 2025 at 10:02 PM
In #MathsToday we are playing and analyzing Hexapawn as an introduction to machine learning.
You can play and have a machine play itself here:
jedediyah.github.io/hexapawn/
There are two problem sets here: williams-bhs.github.io/docs/hexapaw...
You can play and have a machine play itself here:
jedediyah.github.io/hexapawn/
There are two problem sets here: williams-bhs.github.io/docs/hexapaw...
I am a proud recipient of this year's MTLT Outstanding Reviewer award! So that's nice.
December 10, 2025 at 9:46 PM
I am a proud recipient of this year's MTLT Outstanding Reviewer award! So that's nice.
"AI tools that result in discrimination based on race, gender, age, or disability"
So... basically any AI, right?
So... basically any AI, right?
Illinois becomes one of the few states to regulate employer use of AI. House Bill 3773 amends the Illinois Human Rights Act to make it a civil rights violation for employers to use AI tools that result in discrimination based on race, gender, age, or disability.
www.mystateline.com/news/local-n...
www.mystateline.com/news/local-n...
www.mystateline.com
December 7, 2025 at 12:25 AM
"AI tools that result in discrimination based on race, gender, age, or disability"
So... basically any AI, right?
So... basically any AI, right?
Reposted by Jed
A now well-known-ish open conjecture! One reason that the tetrahedron problem is tougher is that the triangle inequality on each side is necessary but NOT sufficient.
To see a deeper reason for the difficulty, the condition on a tetrahedron involves the
en.wikipedia.org/wiki/Cayley%...
#iTeachMath
To see a deeper reason for the difficulty, the condition on a tetrahedron involves the
en.wikipedia.org/wiki/Cayley%...
#iTeachMath
November 28, 2025 at 5:32 PM
A now well-known-ish open conjecture! One reason that the tetrahedron problem is tougher is that the triangle inequality on each side is necessary but NOT sufficient.
To see a deeper reason for the difficulty, the condition on a tetrahedron involves the
en.wikipedia.org/wiki/Cayley%...
#iTeachMath
To see a deeper reason for the difficulty, the condition on a tetrahedron involves the
en.wikipedia.org/wiki/Cayley%...
#iTeachMath
A classic probability problem:
Given a stick broken randomly at two places, what is the probability that a triangle can be formed by the three pieces.
There are various proofs of the answer, but we used this last week to demonstrate Monte Carlo approaches to finding probability distributions.
Given a stick broken randomly at two places, what is the probability that a triangle can be formed by the three pieces.
There are various proofs of the answer, but we used this last week to demonstrate Monte Carlo approaches to finding probability distributions.
November 28, 2025 at 5:25 PM
A classic probability problem:
Given a stick broken randomly at two places, what is the probability that a triangle can be formed by the three pieces.
There are various proofs of the answer, but we used this last week to demonstrate Monte Carlo approaches to finding probability distributions.
Given a stick broken randomly at two places, what is the probability that a triangle can be formed by the three pieces.
There are various proofs of the answer, but we used this last week to demonstrate Monte Carlo approaches to finding probability distributions.
The @internetofbugs.com videos are always good. Doing the work of simple fact checking of AI hype.
"Unlike the SciShow team, I'm just one guy, and it certainly doesn't help when the channels like SciShow that do have the resources to make things better, choose to make things worse instead."
"Unlike the SciShow team, I'm just one guy, and it certainly doesn't help when the channels like SciShow that do have the resources to make things better, choose to make things worse instead."
SciShow Is Lying to You about AI. Here are the receipts.
YouTube video by Internet of Bugs
www.youtube.com
November 26, 2025 at 12:44 AM
The @internetofbugs.com videos are always good. Doing the work of simple fact checking of AI hype.
"Unlike the SciShow team, I'm just one guy, and it certainly doesn't help when the channels like SciShow that do have the resources to make things better, choose to make things worse instead."
"Unlike the SciShow team, I'm just one guy, and it certainly doesn't help when the channels like SciShow that do have the resources to make things better, choose to make things worse instead."
Reposted by Jed
[New Post] Ontario Math Links - My favourite #math related links from this week:
ontariomath.blogspot.com/2025/11/math...
Links and help from @davidporas.bsky.social @howiehua.bsky.social @infobeautiful.bsky.social @jedediyah.com and more #MathChat #MTBoS #iTeachMath
ontariomath.blogspot.com/2025/11/math...
Links and help from @davidporas.bsky.social @howiehua.bsky.social @infobeautiful.bsky.social @jedediyah.com and more #MathChat #MTBoS #iTeachMath
November 23, 2025 at 6:30 PM
[New Post] Ontario Math Links - My favourite #math related links from this week:
ontariomath.blogspot.com/2025/11/math...
Links and help from @davidporas.bsky.social @howiehua.bsky.social @infobeautiful.bsky.social @jedediyah.com and more #MathChat #MTBoS #iTeachMath
ontariomath.blogspot.com/2025/11/math...
Links and help from @davidporas.bsky.social @howiehua.bsky.social @infobeautiful.bsky.social @jedediyah.com and more #MathChat #MTBoS #iTeachMath
Shared a Thanksgiving gift with my data science students today! I spend a couple months collecting used copies. Next month we will read chapter 3 Arms Race and reflect on feedback systems and the susceptibility and sensitivity of data models to manipulation.
November 21, 2025 at 8:03 PM
Shared a Thanksgiving gift with my data science students today! I spend a couple months collecting used copies. Next month we will read chapter 3 Arms Race and reflect on feedback systems and the susceptibility and sensitivity of data models to manipulation.
Last week we worked on combinatorics and I asked about the weight of a binary word.
In #MathsToday we worked on random walks and I asked what is the probability of ending where we started. Some of the students used the weight solution to find the probability! 🥳
#mtbos #ITeachMath
In #MathsToday we worked on random walks and I asked what is the probability of ending where we started. Some of the students used the weight solution to find the probability! 🥳
#mtbos #ITeachMath
November 21, 2025 at 5:24 PM
Last week we worked on combinatorics and I asked about the weight of a binary word.
In #MathsToday we worked on random walks and I asked what is the probability of ending where we started. Some of the students used the weight solution to find the probability! 🥳
#mtbos #ITeachMath
In #MathsToday we worked on random walks and I asked what is the probability of ending where we started. Some of the students used the weight solution to find the probability! 🥳
#mtbos #ITeachMath
"Have you ever been a reader? I think I want to try to be a reader. I might get some books this weekend."
Overheard today 📖
Overheard today 📖
November 19, 2025 at 2:50 AM
"Have you ever been a reader? I think I want to try to be a reader. I might get some books this weekend."
Overheard today 📖
Overheard today 📖
In #MathsToday we rolled a lot of dice and found estimates of probability mass functions for sums of n=2,3 4 dice.
In #MathsNextWeek we start to explore broken stick problems!
Draft of next week's guide:
williams-bhs.github.io/docs/Broken_...
In #MathsNextWeek we start to explore broken stick problems!
Draft of next week's guide:
williams-bhs.github.io/docs/Broken_...
November 14, 2025 at 6:02 PM
In #MathsToday we rolled a lot of dice and found estimates of probability mass functions for sums of n=2,3 4 dice.
In #MathsNextWeek we start to explore broken stick problems!
Draft of next week's guide:
williams-bhs.github.io/docs/Broken_...
In #MathsNextWeek we start to explore broken stick problems!
Draft of next week's guide:
williams-bhs.github.io/docs/Broken_...
In #MathsToday, we saw some amazing and diverse approaches to this problem:
Using the optimal strategy in "Guess my number from 1 to 100" (where we get feedback "higher" or "lower"), what is the average number of guesses it will take as more games are played?
Using the optimal strategy in "Guess my number from 1 to 100" (where we get feedback "higher" or "lower"), what is the average number of guesses it will take as more games are played?
November 13, 2025 at 8:46 PM
In #MathsToday, we saw some amazing and diverse approaches to this problem:
Using the optimal strategy in "Guess my number from 1 to 100" (where we get feedback "higher" or "lower"), what is the average number of guesses it will take as more games are played?
Using the optimal strategy in "Guess my number from 1 to 100" (where we get feedback "higher" or "lower"), what is the average number of guesses it will take as more games are played?