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
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?
In #MathsToday we played with the "Cat Machine" and talked about theoretical probabilities, experimental probability, and confidence in our experimental probabilities.
November 13, 2025 at 8:43 PM
In #MathsToday we played with the "Cat Machine" and talked about theoretical probabilities, experimental probability, and confidence in our experimental probabilities.
Reposted by Jed
I have two books by an author, Keh-Gong Shih, pub in 1996 that are just brilliant! But they are definitely lost. The first is PIctorial Mathematics: Patterns. It is fabulous! full of images like this. He created his own software called Mathgraf which is used to generate the images. #mathart #mtbos
November 11, 2025 at 9:22 PM
Reposted by Jed
Here’s video of federal agents doing a drive by pepper spraying that hit a father and his one-year old on Saturday when the Feds were hitting Little Village and Cicero
November 9, 2025 at 9:30 PM
Here’s video of federal agents doing a drive by pepper spraying that hit a father and his one-year old on Saturday when the Feds were hitting Little Village and Cicero
Reposted by Jed
I wrote about shallow, vague, fuzzy definitions of "conceptual understanding" and a better way to think about it. pershmail.substack.com/p/understand...
"Understanding" Shouldn't Be Vague or Mysterious
Let's do some pedagogy.
pershmail.substack.com
November 11, 2025 at 2:42 PM
I wrote about shallow, vague, fuzzy definitions of "conceptual understanding" and a better way to think about it. pershmail.substack.com/p/understand...
Was really curious to see how these problems would go over in #MathsToday. It was great!
We talked about how to map all of the problems onto the last problem and the usefulness of knowing "how to solve it" when we can recognize and abstract problems to known strategies.
We talked about how to map all of the problems onto the last problem and the usefulness of knowing "how to solve it" when we can recognize and abstract problems to known strategies.
November 4, 2025 at 6:00 PM
Was really curious to see how these problems would go over in #MathsToday. It was great!
We talked about how to map all of the problems onto the last problem and the usefulness of knowing "how to solve it" when we can recognize and abstract problems to known strategies.
We talked about how to map all of the problems onto the last problem and the usefulness of knowing "how to solve it" when we can recognize and abstract problems to known strategies.
In #MathsToday, we looked at Towers of Hanoi, then asked about the optimal number of moves given n towers with k disks.
Our theme is limitations of mathematics, i.e., the difference between the 2 body problem and the 3 body problem isn't just 1 more body.
williams-bhs.github.io/slides/combi...
Our theme is limitations of mathematics, i.e., the difference between the 2 body problem and the 3 body problem isn't just 1 more body.
williams-bhs.github.io/slides/combi...
CDS
williams-bhs.github.io
November 3, 2025 at 3:56 PM
In #MathsToday, we looked at Towers of Hanoi, then asked about the optimal number of moves given n towers with k disks.
Our theme is limitations of mathematics, i.e., the difference between the 2 body problem and the 3 body problem isn't just 1 more body.
williams-bhs.github.io/slides/combi...
Our theme is limitations of mathematics, i.e., the difference between the 2 body problem and the 3 body problem isn't just 1 more body.
williams-bhs.github.io/slides/combi...
I once gave a talk called "AI is not what you think it is unless you think it is hot garbage"
I've just enjoyed and highly recommend @chrissimon.au's "AI is a hype-fuelled dumpster fire that will burn down the planet and get you thrown in jail"
www.youtube.com/watch?v=0bF_...
I've just enjoyed and highly recommend @chrissimon.au's "AI is a hype-fuelled dumpster fire that will burn down the planet and get you thrown in jail"
www.youtube.com/watch?v=0bF_...
November 2, 2025 at 11:03 PM
I once gave a talk called "AI is not what you think it is unless you think it is hot garbage"
I've just enjoyed and highly recommend @chrissimon.au's "AI is a hype-fuelled dumpster fire that will burn down the planet and get you thrown in jail"
www.youtube.com/watch?v=0bF_...
I've just enjoyed and highly recommend @chrissimon.au's "AI is a hype-fuelled dumpster fire that will burn down the planet and get you thrown in jail"
www.youtube.com/watch?v=0bF_...
Reposted by Jed
November is here, and so is the next Calendar of problems!
Enjoy these with your students or for yourself, share your thinking here or on the post.
#MTBoS #iTeachMath #T3Learns #MathSky #RecreationalMath #MathsToday
karendcampe.wordpress.com/2025/11/01/n...
Enjoy these with your students or for yourself, share your thinking here or on the post.
#MTBoS #iTeachMath #T3Learns #MathSky #RecreationalMath #MathsToday
karendcampe.wordpress.com/2025/11/01/n...
November Calendar Problems
Wow, November has blown in with some wild weather, but at least we can get an extra hour of sleep tonight as we “fall back” to standard time. It’s a busy month at school, as the f…
karendcampe.wordpress.com
November 1, 2025 at 12:19 PM
November is here, and so is the next Calendar of problems!
Enjoy these with your students or for yourself, share your thinking here or on the post.
#MTBoS #iTeachMath #T3Learns #MathSky #RecreationalMath #MathsToday
karendcampe.wordpress.com/2025/11/01/n...
Enjoy these with your students or for yourself, share your thinking here or on the post.
#MTBoS #iTeachMath #T3Learns #MathSky #RecreationalMath #MathsToday
karendcampe.wordpress.com/2025/11/01/n...
Reposted by Jed
Does a copy of this report exist somewhere?
"Discrete Mathematics and the Secondary Mathematics Curriculum"
1990
eric.ed.gov?id=ED325367
#Mtbos #ITeachMath
"Discrete Mathematics and the Secondary Mathematics Curriculum"
1990
eric.ed.gov?id=ED325367
#Mtbos #ITeachMath
ERIC - ED325367 - Discrete Mathematics and the Secondary Mathematics Curriculum., 1990
Discrete mathematics, the mathematics of decision making for finite settings, is a topic of great interest in mathematics education at all levels. Attention is being focused on resolving the diversity...
eric.ed.gov
October 30, 2025 at 1:37 PM
Does a copy of this report exist somewhere?
"Discrete Mathematics and the Secondary Mathematics Curriculum"
1990
eric.ed.gov?id=ED325367
#Mtbos #ITeachMath
"Discrete Mathematics and the Secondary Mathematics Curriculum"
1990
eric.ed.gov?id=ED325367
#Mtbos #ITeachMath
Does a copy of this report exist somewhere?
"Discrete Mathematics and the Secondary Mathematics Curriculum"
1990
eric.ed.gov?id=ED325367
#Mtbos #ITeachMath
"Discrete Mathematics and the Secondary Mathematics Curriculum"
1990
eric.ed.gov?id=ED325367
#Mtbos #ITeachMath
ERIC - ED325367 - Discrete Mathematics and the Secondary Mathematics Curriculum., 1990
Discrete mathematics, the mathematics of decision making for finite settings, is a topic of great interest in mathematics education at all levels. Attention is being focused on resolving the diversity...
eric.ed.gov
October 30, 2025 at 1:37 PM
Does a copy of this report exist somewhere?
"Discrete Mathematics and the Secondary Mathematics Curriculum"
1990
eric.ed.gov?id=ED325367
#Mtbos #ITeachMath
"Discrete Mathematics and the Secondary Mathematics Curriculum"
1990
eric.ed.gov?id=ED325367
#Mtbos #ITeachMath
Reposted by Jed
Hello #iTeachMath friends! If you're attending ATMNE New England conference this week, come to hear me & @sneffleupagus.bsky.social present on "Building Community thru K-12 Math Routines"
Shelby's a wee bit taller than me so I made her sit for this photo.
#MTBoS @atmnemath.bsky.social
Shelby's a wee bit taller than me so I made her sit for this photo.
#MTBoS @atmnemath.bsky.social
October 30, 2025 at 12:06 AM
Hello #iTeachMath friends! If you're attending ATMNE New England conference this week, come to hear me & @sneffleupagus.bsky.social present on "Building Community thru K-12 Math Routines"
Shelby's a wee bit taller than me so I made her sit for this photo.
#MTBoS @atmnemath.bsky.social
Shelby's a wee bit taller than me so I made her sit for this photo.
#MTBoS @atmnemath.bsky.social
In #MathsToday, trying to talk about state machines without talking about state machines.
Also debated with students whether we should fully represent all 12 states or reduce the number of bits to the minimum required (depending on number of states used).
Also debated with students whether we should fully represent all 12 states or reduce the number of bits to the minimum required (depending on number of states used).
October 29, 2025 at 10:30 PM
In #MathsToday, trying to talk about state machines without talking about state machines.
Also debated with students whether we should fully represent all 12 states or reduce the number of bits to the minimum required (depending on number of states used).
Also debated with students whether we should fully represent all 12 states or reduce the number of bits to the minimum required (depending on number of states used).
In #MathsToday we continued working on our graph theory exercises.
October 28, 2025 at 11:12 PM
In #MathsToday we continued working on our graph theory exercises.
In #MathsToday we are working on graphs, and getting some motivation for our next unit on combinatorics.
October 23, 2025 at 4:15 PM
In #MathsToday we are working on graphs, and getting some motivation for our next unit on combinatorics.
Danya was one of my favorite people. He was particularly famous in the chess world for being exceedingly kind. That's a good thing to be famous for.
The Charlotte Chess Center, where Naroditsky trained and worked as a coach, announced his death, calling him "a talented chess player, educator, and beloved member of the chess community." n.pr/472VQjQ
American chess grandmaster Daniel Naroditsky dies at 29
The Charlotte Chess Center, where Naroditsky trained and worked as a coach, announced his death, calling him "a talented chess player, educator, and beloved member of the chess community."
n.pr
October 21, 2025 at 11:17 AM
Danya was one of my favorite people. He was particularly famous in the chess world for being exceedingly kind. That's a good thing to be famous for.
Reposted by Jed
How many classes today were canceled because a whole suite of EdTech services are built atop AWS?
You know what platform never crashes?
You know what platform never crashes?
October 20, 2025 at 4:19 PM
How many classes today were canceled because a whole suite of EdTech services are built atop AWS?
You know what platform never crashes?
You know what platform never crashes?
"Discrete mathematics in primary and secondary schools in the United States"
2004
DeBellis Valerie A. & Joseph G. Rosenstein
There are some fire quotes in this #MathEdPaperOfTheWeek
#mtbos #iteachmath
link.springer.com/article/10.1...
2004
DeBellis Valerie A. & Joseph G. Rosenstein
There are some fire quotes in this #MathEdPaperOfTheWeek
#mtbos #iteachmath
link.springer.com/article/10.1...
Discrete mathematics in primary and secondary schools in the United States - ZDM – Mathematics Education
This article provides a status report on discrete mathematics in America's schools, including an overview of publications and programs that have had major impact. It discusses why discrete mathematics...
link.springer.com
October 20, 2025 at 9:40 PM
"Discrete mathematics in primary and secondary schools in the United States"
2004
DeBellis Valerie A. & Joseph G. Rosenstein
There are some fire quotes in this #MathEdPaperOfTheWeek
#mtbos #iteachmath
link.springer.com/article/10.1...
2004
DeBellis Valerie A. & Joseph G. Rosenstein
There are some fire quotes in this #MathEdPaperOfTheWeek
#mtbos #iteachmath
link.springer.com/article/10.1...
Reposted by Jed
new @cshor.org pset 🏃💨
drive.google.com/file/d/1NaXQ...
screenshots of PDF pages 1, 2, 3, and 10 below
cc #iTeachMath ♾️
bcc #MathSky 🧮
drive.google.com/file/d/1NaXQ...
screenshots of PDF pages 1, 2, 3, and 10 below
cc #iTeachMath ♾️
bcc #MathSky 🧮
October 19, 2025 at 11:04 PM
new @cshor.org pset 🏃💨
drive.google.com/file/d/1NaXQ...
screenshots of PDF pages 1, 2, 3, and 10 below
cc #iTeachMath ♾️
bcc #MathSky 🧮
drive.google.com/file/d/1NaXQ...
screenshots of PDF pages 1, 2, 3, and 10 below
cc #iTeachMath ♾️
bcc #MathSky 🧮
Just realized that #NCTMatl25 was the 10th anniversary of my first NCTM conference.
I had started teaching in 2006, mostly Astronomy and Physics, so it is not super weird that I didn't know about NCTM for so long, but it is too bad that more classroom teachers aren't involved (a common criticism).
I had started teaching in 2006, mostly Astronomy and Physics, so it is not super weird that I didn't know about NCTM for so long, but it is too bad that more classroom teachers aren't involved (a common criticism).
October 19, 2025 at 4:34 PM
Just realized that #NCTMatl25 was the 10th anniversary of my first NCTM conference.
I had started teaching in 2006, mostly Astronomy and Physics, so it is not super weird that I didn't know about NCTM for so long, but it is too bad that more classroom teachers aren't involved (a common criticism).
I had started teaching in 2006, mostly Astronomy and Physics, so it is not super weird that I didn't know about NCTM for so long, but it is too bad that more classroom teachers aren't involved (a common criticism).
Two things from #NCTMatl25 that I'm going to be using *this* week:
Gail Burrill's algebra problem, and @gwaddell.bsky.social and Ed Keppelmann's 4 pile Nim.
Gail Burrill's algebra problem, and @gwaddell.bsky.social and Ed Keppelmann's 4 pile Nim.
October 18, 2025 at 11:18 PM
Two things from #NCTMatl25 that I'm going to be using *this* week:
Gail Burrill's algebra problem, and @gwaddell.bsky.social and Ed Keppelmann's 4 pile Nim.
Gail Burrill's algebra problem, and @gwaddell.bsky.social and Ed Keppelmann's 4 pile Nim.
Interactive slides!
jedediyah.github.io/nctm2025/
jedediyah.github.io/nctm2025/
October 16, 2025 at 4:58 PM
Interactive slides!
jedediyah.github.io/nctm2025/
jedediyah.github.io/nctm2025/
Reposted by Jed
Getting pumped to present at @NCTM.org 2025!
Come to an awesome workshop on "Mathematics for Machine Learning and Artificial Intelligence". We'll play with dynamical systems and filters, feature engineer some classifiers, and talk about how not to AI.
#NCTM2025 #NCTMATL25 #mtbos #IteachMath #NCTM
Come to an awesome workshop on "Mathematics for Machine Learning and Artificial Intelligence". We'll play with dynamical systems and filters, feature engineer some classifiers, and talk about how not to AI.
#NCTM2025 #NCTMATL25 #mtbos #IteachMath #NCTM
October 12, 2025 at 6:32 PM
Getting pumped to present at @NCTM.org 2025!
Come to an awesome workshop on "Mathematics for Machine Learning and Artificial Intelligence". We'll play with dynamical systems and filters, feature engineer some classifiers, and talk about how not to AI.
#NCTM2025 #NCTMATL25 #mtbos #IteachMath #NCTM
Come to an awesome workshop on "Mathematics for Machine Learning and Artificial Intelligence". We'll play with dynamical systems and filters, feature engineer some classifiers, and talk about how not to AI.
#NCTM2025 #NCTMATL25 #mtbos #IteachMath #NCTM