Gabe Kramer

Assistant Teaching Professor of Mathematics. 2019 Desmos Fellow. Zero is not a natural number. Pro Lecture. He/Him.

[Gabe Kramer @LetsLearnCalc]

Math Help: If I have a nonlinear transformation T: R^m -> R^n, what do I call the set of solutions to T(x)=0? Is it just roots or zeros? Or is there a fancier name for it?

[Gabe Kramer @LetsLearnCalc]

Hear me out:

Instead of multiple classes meeting 3-4X a week for 15 weeks. One class meets 3-4 hours per day (2 hour morning session + 2 hour afternoon session) for 15 days.

[Gabe Kramer @LetsLearnCalc]

@CmonMattTHINK Here's another good one.

[Gabe Kramer @LetsLearnCalc]

@CmonMattTHINK

[Gabe Kramer @LetsLearnCalc]

@minkbazink Poser?

[Gabe Kramer @LetsLearnCalc]

@CmonMattTHINK If you take the set of irrationals and add the same irrational to each element, the new set contains every rational number.

[Gabe Kramer @LetsLearnCalc]

@mrdardy I’ll see you there! I’m doing calculus.

[Gabe Kramer @LetsLearnCalc]

@CmonMattTHINK f(x) = 0, x<=0
= x^2, x>0
g(x) = sin(x) - 3

[Gabe Kramer @LetsLearnCalc]

@CmonMattTHINK Can you do it with two differentiable functions?

[Gabe Kramer @LetsLearnCalc]

Some geometry of the dot product: https://t.co/Rv6pO8gzPo.

[Gabe Kramer @LetsLearnCalc]

@Desmos I had a little bit of fun with it. https://t.co/ihugrdQkrL

[Gabe Kramer @LetsLearnCalc]

@Canvas_by_Inst there has to be a better way to do this.

[Gabe Kramer @LetsLearnCalc]

Is anyone else having the issue in Chrome where @Canvas_by_Inst isn’t giving the option to delete objectives?

[Gabe Kramer @LetsLearnCalc]

@mrdardy This throws me off every time I teach polar functions. Because I usually think of ordered pairs as (independent, dependent), but with polar it’s flipped.

[Gabe Kramer @LetsLearnCalc]

Formula sheets on exams.

[Gabe Kramer @LetsLearnCalc]

@MrCorleyMath @Trianglemancsd @MathHappensOrg @Desmos That sounds like a challenge Mr. Corley.

[Gabe Kramer @LetsLearnCalc]

@Mr_DSchulte @desmosclassroom I use it daily, and most of my department uses it quite often.
Younger faculty are quicker to adopt it, but once most folks realize you don’t need a degree in computer science to display graphs they are apt to jump in and use it.
As far as activity builder goes..different story

[Gabe Kramer @LetsLearnCalc]

Behrend is hiring!

TT Position in MathEd
https://t.co/YCo2lLtcJZ

NTL Position in Math
https://t.co/3HFfkxdiN9

[Tim Guindon @mr_guindon]

Been seeing lots of @Desmos 3D discussion around surfaces of revolution for Calculus. While parametrics are great for showing the act of rotation (see: https://t.co/kHcaSthKpd), I'm also loving this strategy, accessible to students who have seen equations of circles before: