Bill Shillito

Which of these is named "Kiki", and which of these is named "Bouba"?

I’m going to start calling non-commutative groups “abelian’t.”

#HoagieHomies : it's more than a hashtag, people

Giving students extra credit if they use \varepsilon instead of \epsilon on their LaTeX assignment

AI is going to trash every single way that we had modernised university teaching and send us back to handwritten exams and vivas for every assessment. Which will bring back every problem with those assessment models (and make us seem even more out-of-touch even as we just try to do meaningful work).

Complex function domain-colouring of roots of unity, in @desmos.com Here's the graph: www.desmos.com/3d/hadt9rebbe They recently enabled colouring a surface using functions, so far only in 3D grapher. Side-effect: allows complex domain colouring, using 3D tool as a 2D one! #iTeachMath #MathSky

WOOHOO! Our sandwiches paper has been published! 🥳 ...in celebration, I'm going to claim that tonight's lasagna was a sandwich. 🥪

Teaching logic tomorrow ... with Clue!

It’s ironic that the people who seem to be able to benefit the most from AI tools are the ones who don’t actually need them.

Deviled eggs for New Year's Eve!

We are aware of an ongoing situation concerning our GitHub organization and Discord server (both of which have been deleted) and are working on resolving this as soon as possible. In the meantime we have setup discord.gg/fGG4TFSdKh as a new home on Discord for our community, come join us there!

Had a dream last night… except the main thing of the dream was that I stayed in bed until like 4 PM. There were other things going on too, but I think someone is trying to tell me to get more sleep. 😂

🙂‍↔️🫸 Calculus II exam 😎👉 Series finale

Most underrated video game villain.

For today’s Advanced Topics test I wrote my own @joeldavidhamkins.bsky.social -style question 😁 #iteachmath #MathSky

Anyone have any idea where I can find a direct reference to the following quote? Especially in its original script? I want to verify the translation. "Anantam api sankhyaatmakam iti budhyate. / Through numbers, even the infinite can be understood." — Madhava of Sangamagrama

Students who take AP Statistics are 3x more likely to be able to tell the difference between correlation and causation.

Which of these is an "A"? Why? #Grading Image source: www.mpusd.net/apps/pages/i...

You kids and your six trig functions. Back in my day we had only one, and we used it for everything. sin(θ) sin(π/2 - θ) sin(θ)/sin(π/2 - θ) 1/sin(θ) 1/sin(π/2 - θ) sin(π/2 - θ)/sin(θ)

Hey @desmos.com, any plans to have Desmos be able to choose between the math convention and the physics convention for θ and φ as a quick toggle? I've taught both math majors and physics majors, and it would be nice to allow them to choose the convention that their field uses. 🙂

How to graph y = cosh x: TI-84 CE: 1. Press [Y=]. 2. Press [2nd] [0] (CATALOG). 3. Press [PRGM] (C) to skip to the C functions. 4. Scroll down until you find cosh( and press [ENTER]. 5. Type the rest of the expression and press [GRAPH]. @desmos.com: 1. Type y = cosh x.

Question for anyone that teaches Calculus I. (Been asking this in a few chats.) What's the point of having students learn about the normal line? What's it good for specifically? (And "they'll see normals again in Calculus III" doesn't count.)

Ah yes, the four basic operations: addition, subtraction, checkmark, and multiplication.

Cool thing I just realized about f-means! If deg(f) < deg(g), then the f-mean of a data set is less than the g-mean. So since f(x)=log x has "degree" 0 and g(x)=x has degree 1, the geometric mean is less than the arithmetic mean. (I always forget which way it goes — now I'll always remember!)