@LetsLearnCalc profile picture
Gabe Kramer @LetsLearnCalc

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

Joined February 2015
  • Tweets 1,318
  • Following 1,130
  • Followers 468
198 Photos and videos
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?
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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.
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Gabe Kramer retweeted
alicia 🦭@scrunkycat
10 Aug 2024
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Some geometry of the dot product: desmos.com/3d/5oazs3wlcn.

Dot Product Visualizer

desmos.com
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Is anyone else having the issue in Chrome where @Canvas_by_Inst isn’t giving the option to delete objectives?
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Formula sheets on exams.
67% I’m for them
4% I’m against them
12% I’ll comment
17% Show results
24 votes • Final results
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Behrend is hiring! TT Position in MathEd psu.wd1.myworkdayjobs.com/en… NTL Position in Math psu.wd1.myworkdayjobs.com/en…
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Gabe Kramer retweeted
Tim Guindon@mr_guindon
3 Oct 2023
Been seeing lots of @Desmos 3D discussion around surfaces of revolution for Calculus. While parametrics are great for showing the act of rotation (see: desmos.com/3d/1a7f86ac77), I'm also loving this strategy, accessible to students who have seen equations of circles before:
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Gabe Kramer retweeted
Desmos@Desmos
29 Sep 2023
Develop a deeper understanding of our three-dimensional world with Desmos 3D! Explore dynamic curves and surfaces in a 3D space, all while having your favorite Desmos 2D features at your fingertips. Read about this dynamic new tool in our blog: blog.desmos.com/articles/bet… #Desmos3D
Design asset with a three-dimensional wavy graph of points and spheres that reads "Introducing Desmos 3D! Jump into a new dimension of math."

ALT Design asset with a three-dimensional wavy graph of points and spheres that reads "Introducing Desmos 3D! Jump into a new dimension of math."

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It's public. desmos.com/3d

Desmos | 3D Graphing Calculator

desmos.com
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Just finished #GradingForGrowth. If you are even remotely interested in the alternative grading movement, I highly recommend it. Even if you’re not, it might change your mind.
A picture of the book “Grading for Growth” by David Clark and Robert Talbert.

ALT A picture of the book “Grading for Growth” by David Clark and Robert Talbert.
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Friends in academia, let this serve as a reminder that a promotion without a significant raise isn’t a promotion, it’s a title change. Also, promotions come with a shift in responsibilities, not only more responsibilities. Don’t sell yourself short.
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Adding fractions.. we can do that. desmos.com/calculator/q8zxwp…

Adding Fractions 3.0

desmos.com
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Gabe Kramer retweeted
Kareem Carr, Ph.D.
@kareem_carr
26 May 2023
This is actually how "confidence intervals" work in statistics. I'm being 100% serious. Read on. This is a really fun concept. x.com/HumansNoContext/status…

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My plan for this summer is to study up on some signal processing. This stuff is so cool! desmos.com/calculator/sjhr0g…

Fourier Transform

desmos.com
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We need people to do X. We refuse to pay people to do X. Why does nobody want to do X?

ALT Meme Pikachu GIF

This tweet is unavailable
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Legend.
Jay Cummings
@LongFormMath
22 Apr 2023
The ghost of Ramanujan lives on! And her name is Cleo.
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Student: Can we talk about D12? Me: The rap group or the standard? Either way the answer is yes.
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It’s only a matter of time before students are able to work a problem, scan it, and have AI leave feedback and grade their work. I wish that day was today.
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Any #MTBoS folks have suggestions for intro matrices / linear algebra books? I've had success using Holt in the past but am looking into more affordable alternatives.
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