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Anna Blinstein

@ablinstein.bsky.social
517 followers 220 following 98 posts

Teaching and math and often teaching math. #iTeachMath #pcmiTLP @Desmos Fellow Cohort VI

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benjamin dickman @benjamindickman.bsky.social · 02/07/2025
cool english.elpais.com/science-tech... the arXiv paper: arxiv.org/abs/2502.06137
english.elpais.com
A 17-year-old teen refutes a mathematical conjecture proposed 40 years ago
Hannah Cairo has solved the so-called Mizohata-Takeuchi conjecture, a problem in harmonic analysis closely linked to other central results in the field. This fall, she will begin her doctoral studies ...
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Duane Habecker @duanehabecker.com · 01/07/2025
Join us every month on the 3rd Thursday from 4pm - 5pm Pacific Time to listen to the best math education leaders in California. Check out our next six guests! #iTeachMath @cmcmath.bsky.social @CAMathCouncil Register for FREE: tinyurl.com/CMC-Webi...
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Anna Blinstein @ablinstein.bsky.social · 01/07/2025
So many variables to consider! I would weigh the benefit of the inquiry to students (math identity, engagement, problem solving skills, curiosity) vs the cost (usually just time). And sometimes students benefit from explicit teaching after inquiry or vice versa so it's not one or the other!
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Dilip Barman @dbarman.bsky.social · 21/06/2025
I compiled all of my weekly material and parent notes for this past 10-week quarter of #mathCircle for 1st and 2nd graders at Stanford Math Circle - what a #mathisfun list of topics! It all added up to 577 pages! #mtbos #iteachmath
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Anna Blinstein @ablinstein.bsky.social · 07/06/2025
I also provide Khan Academy links as resources for extra practice, but that's for students to use independently, not during class. I think the skill of using digital resources independently is a good one to pick up in middle/high school.
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Anna Blinstein @ablinstein.bsky.social · 07/06/2025
If you don't tell the students who is correct, just that they have different answers and should talk to each other and figure out why, you end up stimulating really productive and interesting conversations between kids. This would be much harder to orchestrate without the dashboard.
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Anna Blinstein @ablinstein.bsky.social · 07/06/2025
As others have said, Desmos is one of the better online platforms for structuring digital investigations. I have students working in pairs and find the teacher dashboard helpful - common use case is to identify a pair with an incorrect answer and have them chat with a pair who has the right answer.
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Anna Blinstein @ablinstein.bsky.social · 13/05/2025
Love this! I may tweak this into a jigsaw type thing so that each member of the original group presents to a small group of peers who haven't done that topic. Trickier to assess with a rubric, but maybe more engaging??
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Anna Blinstein @ablinstein.bsky.social · 13/05/2025
Oooh wish I'd been that smart. Maybe next year. I do include a few review problems on almost every homework assignment, so I've got that going for me, which is nice.
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Anna Blinstein @ablinstein.bsky.social · 13/05/2025
Nothing like desperately making review worksheets at 10 pm on a school night to bring out people's helpful sides!
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Anna Blinstein @ablinstein.bsky.social · 12/05/2025
Follow up question - ideas for fun or creative ways to review? #iteachmath
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Anna Blinstein @ablinstein.bsky.social · 11/05/2025
I'd love to see your materials! This is a weird Alg2 class I'll be teaching again next year for a few very advanced 8th graders. It only meets 3 times per week and has to fit IB specifications so I'm always looking for projects and other ways to hit multiple content objectives while still being fun.
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Anna Blinstein @ablinstein.bsky.social · 11/05/2025
Dope! Thank you!!
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Anna Blinstein @ablinstein.bsky.social · 11/05/2025
Both were super helpful - thank you!!
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Anna Blinstein @ablinstein.bsky.social · 11/05/2025
Cool format! Love the emphasis on justification, not answers.
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Anna Blinstein @ablinstein.bsky.social · 10/05/2025
Does anyone have an Algebra 2 end of year review they wouldn't mind sharing? It's my first time teaching Algebra 2 in over a decade and I would love to have a starting point - thanks in advance! 🙏 #iteachmath
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Kit 🏳️‍🌈 @mrkitmath.bsky.social · 16/04/2025
Besides the IM curriculum for A1/G/A2, what are other good problem-based math curriculum for HS? Ones that follow the experience first, formalize later model. I also know of Math/Stats/Calc Medic. What else is out there?
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Courtney Flessner @cfless.bsky.social · 17/04/2025
I believe it was @lenadarnay.bsky.social and Ryan Murray, my colleagues from @keepinlearning.bsky.social who suggested we do the show. We talk about this topic often at our house and it’s particularly controversial for me, which you’ll understand if you listen!
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Anna Blinstein @ablinstein.bsky.social · 25/03/2025
Can you use a goal-setting structure where one of the goals come from them and one from you? Sounds like they may also need coaching to make their goals more quantifiable and actionable (or at least connected to actions under their control).
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Anna Blinstein @ablinstein.bsky.social · 24/03/2025
I limit critique by connecting feedback to the areas that they've identified they want to improve or grow in. Do you find that PSTs that are really confident in their practice are still able to identify areas for growth?
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Reposted by Anna Blinstein
Jenna Laib @jennalaib.bsky.social · 23/03/2025
Free PD Opportunity for public school educators in Massachusetts (USA) Come spend a day exploring slow reveal graphs! Stipends available. Applications due April 1st.
slowrevealgraphs.com
Professional Learning Opportunity for Educators in Massachusetts (USA) – with stipend!
Massachusetts educators are invited to participate in free Data Paths PD opportunities this summer at Education Development Center (EDC) in Waltham, MA. Participants will receive PDPs and a stipend for full participation.  There are opportunities for teachers, coaches, and leaders in grades 3-5 and 6-8. Every option is high quality -- and a few even focus on slow reveal graphs! (All workshops include complimentary breakfast and lunch.
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Anna Blinstein @ablinstein.bsky.social · 22/03/2025
I would show it just to see their reactions... These are 7th and 8th graders so probably can't pump them full of caffeine, unfortunately.
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Anna Blinstein @ablinstein.bsky.social · 22/03/2025
Thank you for the help - you rock!
media.tenor.com
a woman sitting on a couch with her hand up and the words nailed it written below her
ALT: a woman sitting on a couch with her hand up and the words nailed it written below her
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Anna Blinstein @ablinstein.bsky.social · 22/03/2025
Oh, I wasn't as smart as you. I just wrote out the expression for C(n,2) and generated the first few terms of v_4 and saw they were the same. Your way is better :)
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Anna Blinstein @ablinstein.bsky.social · 22/03/2025
Totally makes sense now! And now I see how you get from f = e - v + 1 to the final formula n C 0 + n C 1 + n C 2. This is very cool - thank you so much!
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Anna Blinstein @ablinstein.bsky.social · 22/03/2025
That's cool!! I still feel like I'm struggling with how to use Euler's formula to generate the rule in terms of n, just for the original problem. So in the explanation below, what do v_3 and v_4 represent and why is 2e = 3v_3 + 4v_4?
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Anna Blinstein @ablinstein.bsky.social · 22/03/2025
What do you think is the source of their discouragement? I think it can be really hard to prioritize suggestions or things to work on when it feels like there are too many things to fix. Do you feel like they know their strengths and how to build from these?
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Anna Blinstein @ablinstein.bsky.social · 22/03/2025
I'm not that surprised!! Great job! 🥳🥳
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Anna Blinstein @ablinstein.bsky.social · 22/03/2025
Number of intersections is just the triangular numbers, which is chill. The connection to Pascal's triangle is more unexpected, but could be cool. Unfortunately, I don't think I understand the connection to Euclid's characteristic well enough myself to go down that path.
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Anna Blinstein @ablinstein.bsky.social · 22/03/2025
That's a long video! I think I know how I want to introduce the problem (max number of pieces when cutting a pie), but I'm still deciding what follow-up questions to ask. I might have them look at number of intersections or connections to Pascal's triangle, 3D for a few who want a challenge.
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Anna Blinstein @ablinstein.bsky.social · 22/03/2025
Has anyone done the lazy caterer's sequence with middle or high school students? Looks like it could be fun, with connections to quadratic sequences, Pascal's triangle, and Euler's characteristic, which are all topics we've touched on this year. en.m.wikipedia.org/wiki/Lazy_ca... #iTeachMath
en.m.wikipedia.org
Lazy caterer's sequence - Wikipedia
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Melynee Naegele @mnmmath.bsky.social · 07/03/2025
OMG! I KNOW you will not want to miss our chat on March 13th at 9:00 ET/8:00 CST when Fawn Nguyen @fawnnguyen.bsky.social leads our #ElemMathChat It is always such a joy to do math with Fawn!
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benjamin dickman @benjamindickman.bsky.social · 06/02/2025
just learned about this summer opportunity! [s/o @ablinstein.bsky.social] "MitM" = Math in the Mountains Teacher immersion program 2025; first announcement June 23–28 | Jackson Hole, Wyoming More information (along with registration form): docs.google.com/document/d/1... #iTeachMath ♾️ #MathSky 🧮
screenshot of linked site. there is a photo of people sitting at a picnic table and facing towards mountains. the top text reads:

Math in the Mountains

Teacher immersion program 2025; first announcement

June 23–28 | Jackson Hole, Wyoming
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Reposted by Anna Blinstein
slate @pleasebegneiss.bsky.social · 16/12/2024
learning is boring unless it’s gossip. teachers should start every lecture like “omg did you hear about parabolas”
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Investigations 3 @inv3math.bsky.social · 09/12/2024
Session 2 is Thursday! Come hear Susan Jo Russell and Deborah Schifter talk about and discuss video of examples of interweaving deep and rigorous mathematics and equitable participation. www.terc.edu/mathequityfo...
Images of the presenters of Session 2, Interweaving Deep Mathematics & Equitable Participation. 12/12/24, 7-8pm EST
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Anna Blinstein @ablinstein.bsky.social · 05/12/2024
Other than the comment about the bottles, the rest of the comments were great! Definitely better than I expected.
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Anna Blinstein @ablinstein.bsky.social · 04/12/2024
Sounds like it could have wider AI applications for math classrooms. Which parts did you play around with?
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Anna Blinstein @ablinstein.bsky.social · 04/12/2024
Did you see that Dan blogged about it this morning? danmeyer.substack.com/p/here-is-a-...
danmeyer.substack.com
Okay Here Is an Interesting AI Math Edtech Product
Trying to prove, even if only to myself, that I can still find beauty in edtech.
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Anna Blinstein @ablinstein.bsky.social · 04/12/2024
Interesting! What kind of feedback does it give? Can you show an example?
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Anna Blinstein @ablinstein.bsky.social · 03/12/2024
How did it play out on the review day? What expectations did you set? I run BTC-style whiteboard work most days so it seems like an easy thing to incorporate before assessments, if it doesn't take long.
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Anna Blinstein @ablinstein.bsky.social · 03/12/2024
Ooh - would you share the puzzles?
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Anna Blinstein @ablinstein.bsky.social · 03/12/2024
We have 45 minute periods and I like to include opportunities for reassessment as well as quizzing on current material so assessments run long. 5-10 minutes could be okay - I'm up for experimenting and seeing if it makes an impact.
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Anna Blinstein @ablinstein.bsky.social · 02/12/2024
I'm curious if the same effect persists if students do group warm-ups the day before? That would be pretty similar to a typical review day that happens before an assessment. We have short math periods so fitting in warm-ups and an assessment on the same day would be tricky.
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Anna Blinstein @ablinstein.bsky.social · 01/12/2024
That's a great one - I'd love to do that too.
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Anna Blinstein @ablinstein.bsky.social · 28/11/2024
Cover of OK Computer album
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Anna Blinstein @ablinstein.bsky.social · 27/11/2024
I'll try it and report back :)
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Anna Blinstein @ablinstein.bsky.social · 27/11/2024
I like the idea of using this information, but it seems like another complex layer that takes time to interpret and convert into next steps. Does this information get recorded somewhere? Do I use it to follow up with students one-on-one or get an average for the class? Lots to think about :)
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Anna Blinstein @ablinstein.bsky.social · 27/11/2024
Do you review after you've taught these topics or preview before you need to build on them in an upcoming unit? I don't remember the 6th grade sequence of topics well.
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Anna Blinstein @ablinstein.bsky.social · 27/11/2024
This is a great reminder to look over each of my class's curricula and the prerequisite skills needed for each unit to plan out when they can get woven into prior units.
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