Matt Enlow

#math #maths #mathed #iteachmath

Nothing like calling an audible and changing your plans for a class 30 minutes before the class starts

It doesn't make intuitive sense to me that local mins/maxes can't occur at endpoints of the domain. The function f(x)=x² restricted to [-1,2] ought to have local maxima @ x=-1 and x=2. How "flexible" is this def'n? How much harm would I be doing my students if I included endpoints as local extrema?

Whenever I reflexively hit ⌘S in a Google Doc or Google Sheet, I picture Old Man Google smiling at me kindly and patting my head

www.edutopia.org/article/the-...

We just got training last Friday on how to use the CNC machine in our MakerSpace. Now my head is spinning with ideas...

Simple pleasure: When all of my students are present on Test Day. #iTeachMath

My hilarious 15yo daughter, ladies and gentlemen

Write a single equation in x and y, using only the 4 arithmetic operations and the absolute value function (finitely many times), whose graph is this square. #iTeachMath #math #maths #MathSky

Asked my Alg II Honors students to list the elements of ℤ ∩ {Taylor Swift songs} today #iTeachMath

Fitting that the new mnemonic device for the Great Lakes would be SHAME

I wonder what being ready for classes to start feels like

#iTeachMath

In each diagram, the green area and blue area are equal

My feelings about A.I. and math

If just one other person gets this reference I'll be thrilled #GreatAmericanStateFair

Just found this. It will take everything I have to give the "Ditch Geometry" proponents a fair hearing. I'm going to need some time before even pressing Play, though, to feel my initial feelings of sadness and anger that this is even something we're contemplating. www.youtube.com/watch?v=8RE1...

The integers from 1 to 18 can be arranged in a circle so that, when following the circle (counter-clockwise in the below example), every number is the sum of the previous two (mod 19). For what other mods can we do this? That is, for what other integers m can the integers 1 to m-1 be so arranged?

Currently wondering: Can an equilateral pentagon have five distinct interior angle measures that are all rational multiples of π radians? If we remove "distinct," there's at least the regular pentagon with five angles of 3π/5, and another pentagon with two π/2's, two 5π/6's, and a π/3. #MathSky

A couple of Advanced Topics students reviewing for their test today #iTeachMath

Another fun arithmetic sum challenge #iTeachMath #iTeachMaths #MathSky #MathsSky

I always roll my eyes when an A.I. chatbot describes something as "fun," or reports being "curious" about something. Because... no. That's not what's happening. This was a new one on me, though. Why not just omit the "us"?

I am still-occasionally-reflexively-hits-Command-S-even-when-working-in-Google-Docs years old

🎶 … by the moon and the stars in the sky… 🎵

Text from the wife

A parabola rolls along a flat surface. What path does its focus (the red point) trace? Another parabola? Or something else? #iTeachMath #math #maths #mathgif #mathgifs #mathsgif #mathsgifs

Today in Advanced Topics we tried to create a "quadratic formula" for solving quadratic equations in ℤₙ. I'd never done that before. Wasn't planning on doing it today. But that's where our rabbit hole led us. We haven't worked out all the kinks, but the messiness is part of the fun. (Ask any kid.)

An xy projection of the 3D Halverson attractor. I coded it in #Mathematica, then asked #ChatGPT to port it to html/js so it can run in a browser. That's what you're seeing here.

Springtime in Algebra II Honors is fun-arithmetic-sequence-problems season... #iTeachMath #iTeachMaths #math #maths

> image of Jesus eating a hotdog, the text underneath it reading “He Is Glizzin’”

What fresh hell is this

My 15yo son manages to get pizza sauce on every new article of clothing the first time he wears it. Even if we haven't eaten pizza. Somehow he still makes it happen.

Going to try to discover some log rules in Alg II Honors today #iTeachMath

My kids introduced me to this and I will never forgive them for it

Kitchen hack: Use a poker chip set—heavy, but low center of gravity—to press tofu

A "making of" my #mathart post from yesterday

#mathart

🙄

Just checking in on my Janus account. This is what I see (minus personal specifics): the Contrarian fund living up to its name

One minute you're puzzling over a simple probability question, the next minute you're unironically typing out an expression that looks like this

Hyperbolic surfaces spotted at the Andrew Gn exhibit at the Peabody Essex Museum

Okay this one is a beast #math #mathchat #maths #mathschat #probability #iTeachMath #MathSky