Andrew Knauft
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aknauft.bsky.social
Andrew Knauft
@aknauft.bsky.social
Working on it.
Maybe noise. Maybe music. www.desmos.com/3d/jhuvygmlvq
Bouncing Tone
www.desmos.com
November 18, 2025 at 2:45 AM
Reposted by Andrew Knauft
Have you noticed a change of colors? ๐Ÿ

You can now define colors in the 3D calculator that depend directly on coordinates. ๐Ÿ“ Learn more in the Desmos Help Center: help.desmos.com/hc/en-us/art... #iteachmath #mathsky
October 28, 2025 at 6:40 PM
3 months later, the beeps are gone but he smoothly counts to ten, then "twelve, fourteen, fourteen, fourteen, seven, nine".
M is too young to really count, but if you say "five, four, three, two, one," he does a really good job continuing the pattern with "beep, beep, beep!"
September 6, 2025 at 1:42 AM
I am looking forward to this read! I saw a clip where she mentioned the tutoring sessions in hyperbolic geometry -- so cool!
September 6, 2025 at 1:37 AM
Bedtime. Might not finish the podcast. Woof.
August 28, 2025 at 2:43 AM
Oh my heart. 24 minutes, we're celebrating the (hypothetical) boy who doesn't like reading getting a custom Marvel story (I expected a law podcast to have something to say about IP here...) where he's the hero. Yes, cool, but not the point of reading??
August 28, 2025 at 2:42 AM
Like, I'm fully on board with wanting to improve what you're selling, but off of the students' labor? Do they get to opt-in? (Or even opt-out?)
August 28, 2025 at 2:29 AM
22 minutes, talking privacy and what happens with all that student data. This is something I've only recently started to tune in on: these parents are paying $40,000 for their kids' work to be used to sell a (argued) better product.
August 28, 2025 at 2:29 AM
Now at 17 minutes: "I don't know many schools that would say 'okay junior in high school, we're going to have you revisit multiplication table'"
I have a hard time imagining a school that *wouldn't* say that to a kid who's struggling??
August 28, 2025 at 2:18 AM
Strongly!
August 28, 2025 at 2:16 AM
I'm 6 minutes in and the founder of Alpha Schools has asserted (with no pushback) that "obviously, the teacher in front of the classroom was born out of the industrial revolution where we had to figure out how to really educate the masses".
"The idea of a teacher at the front of class teaching everybody in a time-based system doesn't work." That conclusion spurred MacKenzie to launch a new model, an AI-driven model.

Depending on your POV, it's a model to follow or a sign that we've gone too far. What do you think?
August 28, 2025 at 2:02 AM
Teachers, make your prediction before reading abstract: did students (Canadian, grades 4-7) do better with multiplying eg "1/2 ร— 1/2" or "1/2 of 1/2"?
August 20, 2025 at 10:19 PM
Reposted by Andrew Knauft
1/5
Maybe your childhood inspiration ("This is who I want to be") was a movie star or an athlete. Mine was #Tom_Lehrer (1928-2025). I tracked down and studied the sheet music to his songs, memorized all of them (yes, including "The Elements"), and started writing & performing my own satiric ditties.
July 28, 2025 at 11:35 AM
M is too young to really count, but if you say "five, four, three, two, one," he does a really good job continuing the pattern with "beep, beep, beep!"
May 21, 2025 at 12:59 AM
I just keep finding things I want to learn about.
April 1, 2025 at 2:17 AM
A rare miss from Desmos... It's actually my *innie* that has all the fun! teacher.desmos.com/collection/6...
March 20, 2025 at 11:25 PM
I saved it as a textexpander snippet, so I actually use en quite a bit!
February 28, 2025 at 10:04 PM
Long day but kiddo (13mo) just waited in the hallway for me to wave goodnight before walking into his nursery so ๐Ÿค—
January 29, 2025 at 1:53 AM
The little one has a set of 7 stacking cups. He doesn't stack them yet, preferring to interfere with Dad's towers. If he always holds two of the cups (one in each hand), how many different towers can Dad make? (Cups are each a different size, and can only stack with the immediate next size.)
January 5, 2025 at 1:15 PM
Looking forward to reading it!
January 5, 2025 at 1:09 PM
My current favorite mismatch: depending on the specific sequence and placement of clicks, this Desmos construction gives you different behavior as you drag one endpoint of the line around the other: www.desmos.com/geometry/ndo... (two lines with the different sequences, for ease of investigation)
Untitled
www.desmos.com
January 4, 2025 at 5:53 PM
On some level, the assumption is *never* correct: we're thinking about circles and lines, while the computer is manipulating 1s and 0s with some special rules! So there's at least potential for mismatch.
January 4, 2025 at 5:50 PM
This is great: "By manipulating the figure, we can create multiple instances of the situation that still follow the original constraints we set for the figure."
There's an assumption there that the constraints of the software match the constraints we intended. I love poking at how that can fail!
January 4, 2025 at 5:46 PM
Took a photo walk this morning. Winter is here!
December 4, 2024 at 1:32 AM
Overheard: "Where did you come from? Did you leave something behind?"
December 3, 2024 at 2:37 AM