@phonner@mathstodon.xyz
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phonner

@phonner@mathstodon.xyz

Math teacher, instructional coach, author (Painless Statistics), columnist (Quanta Magazine).

This profile is from a federated server and may be incomplete. Browse more on the original instance.

phonner, to random
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I was recently subject to local TV news for the first time in a while. Still the same. Pretty much every story is BE AFRAID BE VERY AFRAID! with some occasional human interest thrown in to break up the monotony.

phonner, to math
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Inspired by my brilliant student (https://mathstodon.xyz/deck/@phonner/112419322877058443) I've been playing around with (e)-like sums. Here's a fascinating one!

[ \sum_{n=0}^{\infty} {\frac{n^4}{n!}}=15e ]
This is strange enough to provoke wonder, but simple enough to serve as an entry-point to an interesting generalization.

phonner,
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@johncarlosbaez @paulmasson I noticed the connection to Bell's numbers and partitions, but have never heard of Dobiński's formula. Thanks!

phonner, to random
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There are very few circumstances under which I would choose to eat a raisin.

phonner, to math
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Brian Conrad, the Stanford mathematician who has written extensively about the problems with the proposed California Mathematics Framework (CMF), is now the subject of a formal complaint filed with Stanford University by the President of the central section of the California Math Council accusing him of "reckless disregard for academic integrity".

https://sites.google.com/view/publiccommentsonthecmf/#h.u9k2csw8r9s4

phonner, to random
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Logged into Twitter to look around, as I occasionally do. I was met with:

• Humblebrag moralizing from people who don't understand the morals they are bragging about possessing
• Several posts intentionally designed to elicit a negative reaction from me
• A few thoughtful posts with no engagement whatsoever
• Four people complaining about Twitter and/or social media
• Two people I miss hearing from

phonner, to math
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Something I keep coming back to as a teacher and learner is Papert's concept of "Objects to Think With". In some ways, math for me is simply a collection of objects to think with. The guitar, too. Card games. The Rubik's cube. A basketball. And a simple way to be a lifelong learner is to continually seek out new objects to think with.

#Math #Teaching #MathEd

phonner, to math
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Wrapped up our unit on infinite series by constructing some fractions with interesting decimal representations!

[ \frac{100}{9899} = 0.01010203050813213455... ]

phonner, to random
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Today I learned a sugar plum is just a ball of sugar.

https://en.wikipedia.org/wiki/Sugar_plum

phonner, to ukteachers
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Texas will use AI to grade free response questions on standardized exams for reading, writing, science, and social studies this year.

"For $50, students and their parents can request a rescore if they think the computer .. got it wrong."

https://www.texastribune.org/2024/04/09/staar-artificial-intelligence-computer-grading-texas/

#Education #Teaching

gregeganSF, to random
@gregeganSF@mathstodon.xyz avatar

My new novel MORPHOTROPHIC will be published on 9 April.

Amazon is now accepting preorders for the ebook; other venues will follow soon.

There will also be print-on-demand editions from Amazon available on 9 April, but they can't be pre-ordered.

https://www.amazon.com/dp/B0CZ46L396

phonner,
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@gregeganSF Ordered!

phonner, to random
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I righted a lifetime wrong this weekend by finally learning to whistle with my fingers.

phonner, to math
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My latest column for @QuantaMagazine is about the many ways recursion can be used across math classes, and starts with one of my all time favorite math problems!

https://www.quantamagazine.org/math-that-connects-where-were-going-to-where-weve-been-20240322/

fractalkitty, to random
@fractalkitty@mathstodon.xyz avatar

Hi all! The 225th Carnival of Mathematics is posted!

https://fractalkitty.com/2024/03/02/carnival-of-mathematics-225/

Thanks everyone for the submissions, blogging, musings, and art.

If you feel like I have missed something or forgot to submit, please let me know.

@KarenCampe @jcponcemath @stecks @drj @shiffman @diffgeom

phonner,
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phonner, to math
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Student 1: That's the craziest shape I've ever seen!
Student 2: That's a hyperbola.
Student 1: And that was hyperbole.

Believe it or not, a true story!

phonner,
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@matthewconroy We draw all kinds of crazy shapes in our class!

jeffmoore, to math
@jeffmoore@schoolahead.social avatar
phonner,
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@jeffmoore @edutooter @edutooter What this person claims is "inexplicable" is fairly well-explained in the UC BOARS report. The board examined several specific "data science" courses (from Youcubed and others) and determined, quite reasonably, that they do not constitute substantive math courses, and therefore should not count as substitutes. The report includes the outline of the review courses, so you can see for yourself.

https://senate.universityofcalifornia.edu/_files/committees/boars/documents/boarsacwphase1report-20240221.pdf

juergen_hubert, to blogging
@juergen_hubert@thefolklore.cafe avatar

I'm curious - what are people using for self-hosted on the ?

, or just with the plugin? Or are there any other alternatives I haven't considered?

phonner,
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@nathanlovestrees @juergen_hubert I have this problem with Wordpress/ActivityPub, too. I believe it has something to do with the hosting service blocking the follow request from reaching the blog. The fix requires the hosting service to allow the request, which I haven't had success with myself. Just in case you were looking for more info, I found this a while ago: https://blog.rac.me.uk/2022/11/10/activitypub-for-wordpress-how-to-fix-modsecurity-to-make-it-work/.

phonner, to math
@phonner@mathstodon.xyz avatar

I was excited to present a new workshop for teachers tonight titled "The Geometry of Statistics"! I love that I am continually learning as a teacher, and I'm fortunate to have opportunities to share what I learn with other teachers.

https://mrhonner.com/archives/21683

phonner, to math
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I once sat in a department meeting where a teacher loudly and seriously asserted that students learn better when chalk is used, and others nodded along in agreement.

phonner, to random
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You know who is a super cool and nice person in real life? @AlSweigart! And I totally forgot to ask him about his hobby of picking up litter.

phonner, to random
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I really don't understand why people who left Twitter angry and disillusioned would use Bluesky. It's vulnerable to the same problems. It was started by the exact same person!

phonner,
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@KeithDevlin So Bluesky intends to avoid those pitfalls. Until it goes public. Or gets sold to someone else. Or the owner has a change of heart.

phonner, to TodayILearned
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People tell me my job is easy

You get summers off.

You only work nine months of the year.

You’re done at 3 pm.

You get paid to babysit.

Students at that school won’t succeed anyway, so you don’t have to do much.

Students at that school will succeed anyway, so you don’t have to do much.

Teaching advanced courses is easy. My students don’t even know the basics.

It must be easy to teach those students. Mine can’t handle that kind of work.

I wish I got to teach those students. Mine aren’t that engaged.

You just walk around asking questions. Your students are the ones doing everything.

https://mrhonner.com/archives/21673

phonner, to math
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My latest column for @QuantaMagazine is about one of my favorite mathematical ideas: transitivity! Well, technically it's about intransitivity. Also, inspired by the football playoffs!

https://www.quantamagazine.org/the-surprisingly-simple-math-behind-puzzling-matchups-20240125/

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