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Dan Meyer

Personal blog · danmeyer.substack.commathai

Dan Meyer writes Mathworlds, a personal blog at danmeyer.substack.com about math and ai. Since 2023, 10 different Hacker News readers have linked it 13 times, most often “In EdTech, you either bet on teachers or you have to build one”. It is still writing: the last post was on 2026-10-21, and you can follow it by feed.

Visit the blog
13mentions?
10HN people?
2023–2026first – last linked?
Links on Hacker News per year · peak 5 in 2025

Too few sampled comments (4) to say how often HN recommends it.?

Why HN links it

Dan Meyer's Substack on maths education and edtech, including the Mathworlds pedagogy writing and critiques of AI maths tutoring. HN commenters cite it on classroom tools, student collaboration and chatbots.

Summarised by Claude from a sample of 4 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.

Building better worlds for learning math.

Most-linked posts?

  1. In EdTech, you either bet on teachers or you have to build one
    2 people · 2 mentions · first linked 2025-01-29

What Hacker News says?

  1. Desmos also produces curriculum for K-12 (Desmos Classroom) that takes advantage of the computer’s ability to give real-time feedback for student answers beyond just giving them a binary correct/incorrect. It shows them what their wrong answers really would mean in the little animated scenario. Good stuff! https://danmeyer.substack.com/p/the-only-question-you-need-t...

    Comment linking /p/the-only-question-you-need-to-ask?utm_campaign=posts-open-in-app&triedRedirect=true

    on “Desmos Animated Graphing Calculator”
  2. Submitted Unbound Academy hasn’t replaced teachers with AI as a story · 50 points

    HN discussion
  3. Yes, the studies tend to exclude the kids who aren't using the tools "enough," which can end up being 95% of the students! [0] On the other hand, I know there are people who enjoy math but struggle to pay attention and learn from a "sit quietly and listen" lecture-based model. (My husband is in this camp.) I can see how the back-and-forth conversational approach of these AI tutors could be really helpful for student…

    Comment linking /p/the-kids-that-edtech-writes-off

    on “Making AI better at math tutoring”
  4. Submitted In EdTech, you either bet on teachers or you have to build one as a story · 3 points

    HN discussion
  5. The author does not take this flaw as seriously as he should. From https://danmeyer.substack.com/p/chatbots-have-a-math-problem... : > Students do not believe that their classmates are liabilities. Much more often students like their classmates and do not feel limited by them and would rather learn with them if the option were available.

    Comment linking /p/chatbots-have-a-math-problem-and

    on “The Misunderstanding About Education That Cost Mark Zuckerberg $100M”
  6. Submitted Khanmigo Doesn't Love Kids as a story · 3 points

    HN discussion
  7. tieandjeans · 2026-05-19Recommends
    Amplify (neé Desmos) builds great tools and manipulatives that are great for classroom use and curious play. Read more of the pedagogy behind these tools on Mathworlds. https://danmeyer.substack.com/

    Comment linking /

    on “Polypad”
  8. Submitted Two Big Studies on AI in Education Just Dropped as a story · 2 points

    HN discussion
  9. Submitted Five differences between human and AI tutors as a story · 2 points

    HN discussion
  10. Submitted The Misunderstanding About Education That Cost Mark Zuckerberg $100M as a story · 2 points

    HN discussion
  11. Submitted AI Chatbots Will Help Students Learn Nothing Faster Than Ever as a story · 2 points

    HN discussion
  12. Submitted Does Alpha School Work for Regular Kids? as a story · 1 points

    HN discussion
  13. Submitted In Edtech, You Either Bet on Teachers or You Have to Build One as a story · 1 points

    HN discussion

Search all of HN for danmeyer.substack.com

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