Todd Feitelson 🏒 (@toddf9) header
Todd Feitelson 🏒 (@toddf9) profile picture

Todd Feitelson 🏒

@toddf9

9-12 Math Teacher. Algebra 2, AP Calculus, Geometry. Wolfram Innovator Award 2019. Fun Fact: My Dad was Martin Gardner’s accountant. He/Him #MTBoS

 Millbrook, NY
mathis3d.blogspot.com/
Joined March 2009
  • Tweets2.6K
  • Following345
  • Followers569
Todd Feitelson 🏒 retweeted
Karen Campe (@KarenCampe) profile picture
Karen Campe@KarenCampe11 Nov 2022
Replying to @benjamin_leis
Those of you from #MTBoS #iTeachMath who have created #mastodon accounts, you can list your handles here: docs.google.com/spreadsheets…

#MTBoS on Mastodon

docs.google.com
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Todd Feitelson 🏒 retweeted
Ishwariya Venkatesh (@Ishwariya13) profile picture
Ishwariya Venkatesh
@Ishwariya1315 Jun 2022
I remember breaking down to my Ph.D. advisor about how stupid I felt while troubleshooting a problem in my project when she handed me this paper. Years later it is still relevant to young students starting off in Science. It's ok to feel stupid, we all do on a regular basis.
Image from Ishwariya Venkatesh (@Ishwariya13)
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Todd Feitelson 🏒 retweeted
Science girl (@sciencegirl) profile picture
Science girl
@sciencegirl24 Apr 2022
This illusion where you see a 3 dimensional cube even though it’s not there a shape is made that is adjusted by your point of view This type of illusion where a distorted drawing appears normal when viewed from a particular point is called anamorphosis
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Todd Feitelson 🏒 retweeted
Ian Birrell (@ianbirrell) profile picture
Ian Birrell@ianbirrell25 Feb 2022
'I still hope I'll just wake up and it's all going to be normal, that life is going to be fine.' My despatch from Kyiv as the worst fears of Ukrainians turn into horrifying reality dailymail.co.uk/news/article…

IAN BIRRELL's haunting despatch from Kyiv as thousands attempt to flee

IAN BIRRELL: I found myself among crowds of desperate people clutching bags, suitcases, pets and the hands of their partners as they tried to flee from an advancing army invading their country.

dailymail.com
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Todd Feitelson 🏒 retweeted
Ben Orlin (@benorlin) profile picture
Ben Orlin@benorlin14 Jan 2022
This game needs a rebranding.
Image from Ben Orlin (@benorlin)
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Todd Feitelson 🏒 retweeted
Kids Write Jokes (@KidsWriteJokes) profile picture
Kids Write Jokes@KidsWriteJokes22 Dec 2021
you say rice pudding, I say advice pudding. you want some advice? get some pudding.
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Todd Feitelson 🏒 retweeted
Kids Write Jokes (@KidsWriteJokes) profile picture
Kids Write Jokes@KidsWriteJokes21 Dec 2021
why wolves howl? because they have no idea what are they doing
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Kids Write Jokes (@KidsWriteJokes) profile picture
Kids Write Jokes@KidsWriteJokes20 Dec 2021
Why was three afraid of two? Because seven nine eight.
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Todd Feitelson 🏒 retweeted
Anna (@oneplusepsilon) profile picture
Anna@oneplusepsilon14 Dec 2021
A beautiful problem from @toddf9: What curve is traced by this bifold door? @Desmos and lots more below! #geometry #calculus #mtbos 1/10
Todd Feitelson 🏒 (@toddf9) profile pictureTodd Feitelson 🏒@toddf94 Aug 2021
Replying to @toddf9
Video
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Todd Feitelson 🏒 retweeted
Rich Tipple 🎨 (@farfromallover) profile picture
Rich Tipple 🎨@farfromallover27 Nov 2021
Just a FYI, George Jetson is going to be conceived this weekend.
Image from Rich Tipple 🎨 (@farfromallover)
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Ben Orlin (@benorlin) profile picture
Ben Orlin@benorlin16 Nov 2021
the most important journalism I've ever done
Image from Ben Orlin (@benorlin)
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Todd Feitelson 🏒 retweeted
Nicki Schermann (@nickischermann) profile picture
Nicki Schermann@nickischermann26 Oct 2021
I've started creating some short how-to videos because I want to practice creating just-in-time resources to support my community. I would love feedback on the designs, on the topics covered, and suggestions for future videos! instagram.com/nickischermann… #TechCoach #EdTech #AISL
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Todd Feitelson 🏒 retweeted
Ben Orlin (@benorlin) profile picture
Ben Orlin@benorlin28 Sep 2021
Ever wished there were an SI unit for cuteness? Good news: there already is. mathwithbaddrawings.com/2021…
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Todd Feitelson 🏒 retweeted
Matt Henderson (@matthen2) profile picture
Matt Henderson@matthen221 Sep 2021
the dumbest way to solve a maze? simulate a gas of thousands of particles diffusing from the start point, until one particle reaches the exit. trace back the winning particle
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1/many So on Sunday, I was gaslit @Costco in #nanuetny. I walked in the exit, if you know, to member services to make a return before shopping. There was nobody in line, but there were three customers with employees doing different things. There was also a red ❌ on the floor.
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Todd Feitelson 🏒 retweeted
Kayla Cappuccio (@kayla_cappuccio) profile picture
Kayla Cappuccio@kayla_cappuccio3 Sep 2021
Help me, Twitter! Two years ago I had an awesome 1st day with this activity but I have no idea what the directions are for it anymore! I can’t find it anywhere. Anyone recognize it? #mtbos #mathteachers
Image from Kayla Cappuccio (@kayla_cappuccio)
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Todd Feitelson 🏒 retweeted
Jo Morgan (@mathsjem) profile picture
Jo Morgan@mathsjem25 Aug 2021
I love this little gift from the maths charity SAMI that arrived in the post today! A pack of playing cards where each card has a maths game, puzzle or fact. virtualmathscamp.com/card-de…
Image from Jo Morgan (@mathsjem)
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Todd Feitelson 🏒 retweeted
Jordan Ellenberg (@JSEllenberg) profile picture
Jordan Ellenberg@JSEllenberg25 Jun 2021
I have a piece in the @washingtonpost today: math is hard and we should tell our students the truth about it. washingtonpost.com/outlook/m…
Perspective | Want kids to learn math? Level with them that it’s hard.

Perspective | Want kids to learn math? Level with them that it’s hard.

It’s only easy once you’ve mastered the concepts. Telling students otherwise can backfire.

washingtonpost.com
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Todd Feitelson 🏒 retweeted
Howie Hua (@howie_hua) profile picture
Howie Hua@howie_hua5 Mar 2021
What is the derivative of e^x, if not e^x persevering?
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Todd Feitelson 🏒 retweeted
Jay Chow (@mrchowmath) profile picture
Jay Chow@mrchowmath1 Mar 2021
In this month’s CL newsletter, read up on some of the things people love about CL. Contributions from @mckeemath, @mrcorleymath, @BethProvencal, @BirkelandMr, @kbook10, @OGLaursen, @toddf9, @NolanFossum, @CalfordMath, @CabezasMath, and more! mailchi.mp/desmos/cl
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