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Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•1y ago

Comments

trane_project•1y ago
> Nonetheless, Bloom was on to something: Tutoring and mastery learning do have a degree of experimental support, and fortunately it seems that carefully designed software systems can completely replace the instructional side of traditional teaching, achieving better results, on par with one to one tutoring. However, designing them is a hard endeavour, and there is a motivational component of teachers that may not be as easily replicable purely by software.

I've been working on an implementation of mastery learning and other related techniques called Trane (https://github.com/trane-project/trane/) for the past three years or so. Mastery learning is the main one, but it also integrates spaced repetition, interleaving, mixing difficulties, and reward propagation (doing well or bad in an exercise affects how related exercises are scheduled).

I think it works pretty well, but you need to pair it with proper pedagogy of the skill you want to learn and the proper curriculum. The latter is the hardest part, so it's being my main limitation. I've used some external resources to build courses, and they work well, but obviously it would work much better with a full curriculum built from the ground up.

Currently working on Pictures Are For Babies (https://picturesareforbabies.com/), which is meant to do just that for literacy. I am hoping to do a first release soon. As for the motivation angle, the solution in this particular instance is fairly simple. Use the software to enforce scheduling andpedagogy,y and a human tutor to provide emotional and social support. This division allows any literate person to become an effective tutor with a few hours of training.

I am hoping that the average student can complete the whole curriculum in five years. That would mean that (assuming they start at between 4 and 5 years old), the average student would have college-level reading and writing skills by the time they are nine or ten.

Most complete explanation so far is in the pedagogy page: https://picturesareforbabies.com/home/pedagogy/

Dutch Train Map Simulator

https://spoorkaart.zaza.dev
1•zazaalaza•1m ago•0 comments

I will pay $ for your code

https://intentic.dev/earn/
1•radarsu•5m ago•1 comments

Running Umami analytics for free on Vercel and Supabase

https://blog.kulman.sk/running-umami-for-free/
1•ig0r0•5m ago•0 comments

Show HN: Eclipse locator: find the best place to see the solar eclipse

https://jdlm.info/eclipse-locator/
1•jdleesmiller•5m ago•0 comments

Project 0 Vaults: Machine Learning Grade Yield

https://blog.0.xyz/articles/introducing-project-0-vaults/
1•panterafii•9m ago•0 comments

Unofficial Home Assistant integration for Geely vehicles

https://github.com/YossiKon/geely-connect
1•haunter•10m ago•0 comments

Show HN: SoundGate – Real-time note detection and AI tutor for guitar

https://soundgate.ai/product/
1•aren-barseghyan•11m ago•0 comments

Show HN: Team chat you won't dread opening

https://fosbury.ai/
1•YarivAshk•12m ago•0 comments

More than 1B people are using the Gemini app every month

https://blog.google/innovation-and-ai/products/gemini-app/one-billion-monthly-users/
1•geox•14m ago•0 comments

One Product, Two Front Doors: Why We Split the Octomind Panel

https://octomind.run/blog/simple-mode-chat-studio
2•donk8r•14m ago•0 comments

Ireland Faces Court over NIS2. 88% of Security Vendor Detections Were American

https://ciphercue.com/blog/ireland-eu-court-nis2-security-infrastructure-89-percent-american
1•adulion•15m ago•0 comments

What Happened to Google's James Damore?

https://www.thefp.com/p/google-memo-james-damore-vindication-trump-musk
1•countrymile•15m ago•0 comments

One Changelog – Changelog Aggregator for Engineers

https://onechangelog.com/
1•adderling•15m ago•0 comments

When the AI Bubble Bursts, Who Will Be Left Holding the Bag?

https://cepr.net/publications/when-the-ai-bubble-bursts-who-will-be-left-holding-the-bag/
3•DeepLogin•17m ago•0 comments

John Steinbeck on Falling in Love: A 1958 Letter of Advice to His Teenage Son

https://www.themarginalian.org/2012/01/12/john-steinbeck-on-love-1958/
1•baxtr•17m ago•0 comments

We're fighting over the wrong wire: WebSockets vs. SSE for HTML over the wire

https://en.andros.dev/blog/bd74e61a/were-fighting-over-the-wrong-wire-websockets-vs-sse-for-html-...
1•andros•17m ago•0 comments

Show HN: YOalphabet – A 4-bit isomorphic graphical interface system

https://github.com/YOalphabet/YOalphabet
1•YOalphabet•19m ago•0 comments

A Workaphile's Apology

https://moalquraishi.wordpress.com/2026/08/10/a-workaphiles-apology/
1•mpavlov•23m ago•0 comments

The case for disaggregated LLM serving

https://blog.doubleword.ai/when-to-disaggregate
4•somnial•23m ago•0 comments

A New Label for AI-Generated Artist Identities on Spotify

https://newsroom.spotify.com/2026-08-11/ai-persona-badges-transparency/
1•clmul•24m ago•0 comments

Numba in the Browser: Unlocking a New Scientific Python Stack in JupyterLite

https://notebook.link/blog/numba-in-the-browser/
3•xalfotis•26m ago•1 comments

Why vibe code in Common Lisp?

http://funcall.blogspot.com/2026/08/why-vibe-code-in-lisp.html
1•oumua_don17•29m ago•0 comments

Do We Need a New Programming Language for the AI Era?

https://mfallah.com/blog/do-we-need-a-new-programming-language-for-the-ai-era/
2•dalmif•32m ago•1 comments

1Password Login Issues

https://www.1password.community/1password-at-home-31/1password-for-safari-does-not-integrate-with...
1•jcfrei•33m ago•0 comments

Estimating Branch Probabilities

https://maskray.me/blog/2026-08-09-estimating-branch-probabilities
1•matt_d•37m ago•0 comments

Single-pixel width legible LCD font – Subpixel Text Encoding

https://www.msarnoff.org/millitext/
3•adunk•37m ago•0 comments

Italy's cheese banks hold Parmigiano as collateral

https://fortune.com/2026/08/10/italy-5-billion-cheese-economy-heat-wave-climate-change/
2•_tk_•39m ago•1 comments

More on Robotaxis

https://blog.dshr.org/2026/08/more-on-robotaxis.html
1•FabHK•39m ago•0 comments

The U.S. military needs tungsten, but pristine NASA site may stand in the way

https://www.scientificamerican.com/article/the-u-s-military-needs-tungsten-but-pristine-nasa-site...
1•divbzero•39m ago•0 comments

Eight architecture myths busted by Samuel Hughes

https://www.bensouthwood.co.uk/p/eight-architecture-myths-busted-by
1•bensouthwood•41m ago•0 comments