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Sam Leitermann-Long

@mathmansam.bsky.social
108 followers 304 following 92 posts

Mathematics Educator at Deerfield Academy. Husband. Father. Member of the #NeuroNerdSquad Pronouns: He/They

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Sam Leitermann-Long @mathmansam.bsky.social · 03/01/2026
It’s Box Day at the library and I’ve got a little astronaut (complete with Mae Jemison shirt!) It was wild to see her create and guide the process (with a lot of dad provided fine motor skills)
A picture of a cardboard rocket ship creation with fins and a door.
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Sam Leitermann-Long @mathmansam.bsky.social · 04/12/2025
I've completed "Printing Department" - Day 4 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/4 My code is here: github.com/samleiterman... Its not the prettiest, but it got the job done! (I read the prompt incorrectly for a moment and was very confused.)
adventofcode.com
Day 4 - Advent of Code 2025
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Sam Leitermann-Long @mathmansam.bsky.social · 20/10/2025
This morning I said to myself "Wouldn't it be funny if the AWS outage meant I couldn't submit grades?" Can confirm, its not particularly funny (don't get behind on your grading, kids!)
A screenshot of a Canvas outage due to AWS being down.
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Sam Leitermann-Long @mathmansam.bsky.social · 28/07/2025
July had been great to my garden!
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Sam Leitermann-Long @mathmansam.bsky.social · 21/06/2025
Garden update, we’re thriving! Gotta make it through the heat wave over the next couple days🤞🏻
A collage of garden images with vegetable plants. A picture of a vegetable gardenA picture of potato plants in a row. Eggplant and pepper plants in a garden
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Reposted by Sam Leitermann-Long
Greg Pak @gregpak.net · 21/06/2025
"i asked chatgpt" yeah well i went to the doctor, i went to the mountains, i looked to the children, i drank from the fountains there's more than one answer to these questions pointing me in a crooked line and the less I seek my source for some definitive closer I am to fine
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Sam Leitermann-Long @mathmansam.bsky.social · 18/06/2025
As an educator who is thinking hard about how to help my students navigate AI, this paper feels essential: papers.ssrn.com/sol3/papers.... The TL;DR? Don’t offload your work to AI or you don’t gain appreciable skills or knowledge. If you use AI as a partner it enhances.
papers.ssrn.com
The Memory Paradox: Why Our Brains Need Knowledge in an Age of AI
In an era of generative AI and ubiquitous digital tools, human memory faces a paradox: the more we offload knowledge to external aids, the less we exercise and
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Sam Leitermann-Long @mathmansam.bsky.social · 10/06/2025
When I’m not doing math and education, I’m gardening! Here’s my 20’ x 40’ plot this year.
Pictures of a vegetable garden with a wire fence, tomato plants, and pumpkin plants.
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Sam Leitermann-Long @mathmansam.bsky.social · 10/06/2025
These two weeks have been filled with conversations about AI use and implementation, observation and coaching, and student leadership and have been incredibly impactful. I love the moments I get to spend actual time with my colleagues to think deeply about what is best for students!
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Reposted by Sam Leitermann-Long
LOWρUFO 🇺🇦🇵🇸🌍 @lowrhoufo.bsky.social · 13/04/2025
I found the most incredible graph on the other site
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Sam Leitermann-Long @mathmansam.bsky.social · 05/03/2025
Due to tariffs corn dogs are now a luxury item.
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Reposted by Sam Leitermann-Long
bug @cactus.dev · 04/03/2025
Top 10 Software Design Patterns (Ranked by Fuckability)
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Sam Leitermann-Long @mathmansam.bsky.social · 25/01/2025
I went to The Gauntlet and the Garden to see Dimension 20 at Madison Square Garden and it was truly an incredible time! It had everything, Lou stone cold stunnering Murph, Brennan kissing Murph, more Murph stuff, it was a blast! #Dimension20
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Sam Leitermann-Long @mathmansam.bsky.social · 08/01/2025
Someone sent me this problem the other day and I'm obsessed with the potential for variation here. What would you do? #ITeachMath
A image describing a modification to the Monty Hall Problem. It reads:

You are playing the Monty Hall problem. However, you secretly know one of the goats is the former pet of an eccentric billionaire who lost it and is willing to pay an enormous amount for its return, way more than the car is worth. You really want that goat.

"The host is unaware of this. After you pick your door, as is traditional, the host opens one door, which he knows doesn't have the car. He reveals a goat, which you can tell is the ordinary goat and not the secretly valuable one. The host offers to let you switch doors.

Should you?
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Sam Leitermann-Long @mathmansam.bsky.social · 24/12/2024
Look at this crystalline structure! My kids noticed it on our walk today!
A picture of snowflakes on a grey background.
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Sam Leitermann-Long @mathmansam.bsky.social · 14/12/2024
The math here was fun, but so was figuring out how to print the files! I've completed "Restroom Redoubt" - Day 14 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/14
adventofcode.com
Day 14 - Advent of Code 2024
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Sam Leitermann-Long @mathmansam.bsky.social · 13/12/2024
The more we learn, the more concerning this company becomes.
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Sam Leitermann-Long @mathmansam.bsky.social · 13/12/2024
I love when being a mathematician is just a cheat code. Easy day easy life. I just completed "Claw Contraption" - Day 13 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/13
adventofcode.com
Day 13 - Advent of Code 2024
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Sam Leitermann-Long @mathmansam.bsky.social · 11/12/2024
I started off by being an idiot and then I think I was actually quite clever! I just completed "Plutonian Pebbles" - Day 11 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/11
adventofcode.com
Day 11 - Advent of Code 2024
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Sam Leitermann-Long @mathmansam.bsky.social · 10/12/2024
Do I use DFS in my daily life? No I do not. Am I glad I know how to do it? Yes I am. I've completed "Hoof It" - Day 10 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/10
adventofcode.com
Day 10 - Advent of Code 2024
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Sam Leitermann-Long @mathmansam.bsky.social · 08/12/2024
This is what life looks like these days, cute kiddos and a beautiful place to live!
A picture featuring an overhead shot of the Deerfield Academy campus and three pictures of children.
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Sam Leitermann-Long @mathmansam.bsky.social · 08/12/2024
It’s all that I’ve been posting about, but I wanted to give a huge thanks to @was.tl who runs #adventofcode. I’ve had so much fun since 2019 playing along, and he does a ton of work! It’s been somewhat of a rough year and I hope you know you’re very appreciated!
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Sam Leitermann-Long @mathmansam.bsky.social · 08/12/2024
Unsure why I found today so straightforward, but this is most definitely my best placement in a long time (partly because I’m usually not up this late) I've completed "Resonant Collinearity" - Day 8 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/8
adventofcode.com
Day 8 - Advent of Code 2024
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Sam Leitermann-Long @mathmansam.bsky.social · 07/12/2024
Recursion makes me feel like an absolute genius. I just completed "Bridge Repair" - Day 7 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/7
adventofcode.com
Day 7 - Advent of Code 2024
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Sam Leitermann-Long @mathmansam.bsky.social · 07/12/2024
I didn't use an elegant solution to Part 2, I just simulated all possible locations for the guard and checked for a loop. This is not a good solution, it did work tho! (It only took 8 seconds!) I've completed "Guard Gallivant" - Day 6 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/6
adventofcode.com
Day 6 - Advent of Code 2024
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Sam Leitermann-Long @mathmansam.bsky.social · 05/12/2024
Fun expansion of rules into a tree and then a little bit of brute force just for fun! I just completed "Print Queue" - Day 5 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/5
adventofcode.com
Day 5 - Advent of Code 2024
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Sam Leitermann-Long @mathmansam.bsky.social · 04/12/2024
I should probably learn how numpy works? Instead I did this heinous figuring out of how to roll my own diagonals and anti-diagonals, which was not the most effective approach. I just completed "Ceres Search" - Day 4 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/4
A diagram showing a matrix and work determining the criteria for how to create diagonals and anti-diagonals in an array of arrays in python.
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Sam Leitermann-Long @mathmansam.bsky.social · 04/12/2024
My kiddo brought this home and I’m just incredibly interested in how it tastes but also it might murder my tastebuds. What do we think chat, to eat or not to eat?
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Sam Leitermann-Long @mathmansam.bsky.social · 03/12/2024
I had to learn regex for this one, which honestly I should have done before anyways. I've completed "Mull It Over" - Day 3 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/3
adventofcode.com
Day 3 - Advent of Code 2024
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Sam Leitermann-Long @mathmansam.bsky.social · 03/12/2024
I just completed "Red-Nosed Reports" - Day 2 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/2 I brute forced this one a little bit, there's a more elegant way to think about Part 2 (one where you don't just check all the conditions) but I do think my solution is fairly elegant.
adventofcode.com
Day 2 - Advent of Code 2024
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Sam Leitermann-Long @mathmansam.bsky.social · 01/12/2024
Every year I start this challenge, and every year I don't make it to the end. But, it improves my coding skills a little every year and that's a big deal! I've completed "Historian Hysteria" - Day 1 - Advent of Code 2024 #AdventOfCode adventofcode.com/2024/day/1
adventofcode.com
Day 1 - Advent of Code 2024
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Reposted by Sam Leitermann-Long
Robert "The Bobby Yaga" McNees @mcnees.bsky.social · 24/11/2024
"But I am very poorly today & very stupid & hate everybody & everything." Charles Darwin, whose “On the Origin of Species” was published #OTD in 1859, understood impostor syndrome and what it was like to have a terrible, horrible, no good, very bad day. He also had abysmal penmanship.
A portion of a letter where Darwin has scratched out “But I am very poorly today & very stupid & hate everybody & everything.”
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Sam Leitermann-Long @mathmansam.bsky.social · 23/11/2024
On Thursday at 7pm I learned my buddy’s groomsman had dropped out for his Saturday wedding. Turns out I fit in the suit pretty well for it being someone else’s!
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Reposted by Sam Leitermann-Long
Randall Munroe @xkcd.com · 23/11/2024
D&D Combinatorics xkcd.com/3015
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Reposted by Sam Leitermann-Long
amanda moore 🐢 @noturtlesoup17.bsky.social · 23/11/2024
I'm having a stroke. You guys gotta read this. Please.
slate.com
He Bungled the Literary Scoop of the Year. Now He’s Ready to Explain Himself.
An interview with the Vanity Fair writer whose astounding revelations about Cormac McCarthy went viral for all the wrong reasons.
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Sam Leitermann-Long @mathmansam.bsky.social · 22/11/2024
What good math problems could we create from this data? Seems like a rich place to start! #ITeachMath♾️
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Sam Leitermann-Long @mathmansam.bsky.social · 21/11/2024
My first published crossword is out today! Loved making this grid and looking forward to bigger and better aspirations!
A crossword grid in the Deerfield Scroll, a Deerfield Academy publication. The crossword is titled “Battle Cry.”
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Sam Leitermann-Long @mathmansam.bsky.social · 20/11/2024
Laurie Berkner stans have waited for this day for forever.
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Sam Leitermann-Long @mathmansam.bsky.social · 19/11/2024
The unexpected highlight of today is an incredibly fun time coaching 3rds squash! It’s a new role to me and I’m loving it. The rough moment is that I have calc BC tests to grade by tomorrow and I’m critically low on spoons. #EDS #EDUSky
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Sam Leitermann-Long @mathmansam.bsky.social · 18/11/2024
You can tell it’s finals week when the linear algebra brain dump starts. #iteachmah
A whiteboard covered with linear algebra notes.
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Sam Leitermann-Long @mathmansam.bsky.social · 18/11/2024
I spent much of my day unraveling student misconceptions about what function notation means (lots of folx thinking it was f times x, instead of understanding the role the input plays in function definition.) Any #iteachmath #MTBoS folks have good insight into how they’ve tackled this problem?
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Sam Leitermann-Long @mathmansam.bsky.social · 17/11/2024
I’ve been trying to build writing into Calc BC this year, following success with Multivariable Calculus. Check out this assignment where Gru from Despicable Me requests my students’ assistance in stealing the moon. #iteachmath #MTBoS 1/2 docs.google.com/file/d/16CLI...
docs.google.com
Minions Project 1 - Final Copy.docx
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Reposted by Sam Leitermann-Long
Joel Bezaire @joelbezaire.bsky.social · 15/11/2024
I'm a finalist in the Amplify/Desmos Custom Activity Builder Challenge. Mostly, though, visit this link if you're a math teacher to see 20 incredible Desmos Classroom resources for your students. ALL of the finalists deserve your attention: student.desmos.com/join/6fbynf
student.desmos.com
Loading Activity...
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Sam Leitermann-Long @mathmansam.bsky.social · 16/11/2024
I gave a hard math test on Friday. It was appropriately hard, designed to challenge exceptional students, but their level of resiliency in the face of the challenge was low. Our mantra has become “our goal is learning, not perfection.”
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Sam Leitermann-Long @mathmansam.bsky.social · 14/11/2024
This is actively one of the funniest things I've seen in a long time. It brings a spark of joy in a hard time.
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Sam Leitermann-Long @mathmansam.bsky.social · 21/08/2024
It’s been a banger of a summer! Gardening, making jam, pickling things, it’s been a ton of fun 🔥🔥🔥
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Sam Leitermann-Long @mathmansam.bsky.social · 21/08/2024
Today I threw a paper airplane too hard and subluxated my hand…
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Sam Leitermann-Long @mathmansam.bsky.social · 24/11/2023
And so it begins! #falalasky
A picture of stockings hung by the chimney with care.
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Sam Leitermann-Long @mathmansam.bsky.social · 23/11/2023
As a Packers fan I entered today pessimistic but I should have known the Lions would Lions it up! #GoPackGo!
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Sam Leitermann-Long @mathmansam.bsky.social · 23/11/2023
I'll be headed to Greenwich, CT for ResearchEd this year. Any #EDUSky folks joining me?
researched.org.uk
researchED Greenwich (USA) | ResearchED
researchEd returns to the United States for researchEd Greenwich on April 6th, 2024. Join the Greenwich Public School District for a fantastic day of connecting theory to practice under the [...]Read ...
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