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Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•9mo ago

Comments

trane_project•9mo 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/

Omnia Wants to Be Your Brand's SEO – But for AI Search

https://topaiproduct.com/2026/02/19/omnia-wants-to-be-your-brands-seo-but-for-ai-search/
1•stareatgoats•48s ago•0 comments

Chat with Llamma 8B at 16,000 TPS

https://chatjimmy.ai/
1•nl•1m ago•0 comments

Llamma 3.1 8B in hardware, 16,000 TPS

https://taalas.com/products/
1•nl•2m ago•0 comments

MD5 Algorithm Explainer

https://md5algorithm.vercel.app/
1•fanweixiao•3m ago•0 comments

The Gemini Servility Trap

1•gemfan•3m ago•0 comments

RFC 2295 – Transparent Content Negotiation in HTTP

https://datatracker.ietf.org/doc/html/rfc2295
1•locknitpicker•4m ago•0 comments

How did I revolutionized my productivity using OpenClaw

https://clawhub.ai/Quarantiine/effortlist-ai
1•daniel_ward•4m ago•0 comments

PostgreSQL's 8KB Page

https://boringsql.com/posts/inside-the-8kb-page/
1•radimm•10m ago•0 comments

Database table is an awful API

https://www.innoq.com/en/blog/2026/02/your-database-table-is-an-awful-api/
1•Ookami86•10m ago•0 comments

Donut Lab Announces Upcoming Independent Battery Measurements

https://www.donutlab.com/measurement-reports-announcement/
2•peritpatrio•11m ago•0 comments

We built a desktop AI agent that runs commands locally

https://desktopcommander.app/
1•rkrizanovskis•12m ago•1 comments

Tariffs paid by midsize US companies tripled last year JPMorganChase study shows

https://apnews.com/article/trump-tariffs-midsized-companies-costs-consumers-2a25158ff1d06bd7f72d9...
1•petethomas•13m ago•0 comments

What Developers Actually Need to Know Right Now

https://www.oreilly.com/radar/what-developers-actually-need-to-know-right-now/
1•asplake•14m ago•0 comments

Did a prize-winning novelist steal a woman's life story?

https://www.theguardian.com/books/2026/feb/17/did-a-prize-winning-novelist-steal-a-woman-life-sto...
1•brandonlc•21m ago•0 comments

Gay men have long been rumored to run Silicon Valley - WIRED investigates

https://www.wired.com/story/inside-the-gay-tech-mafia/
2•helloplanets•25m ago•0 comments

How AI Is Rewiring Winemaking and Wine Collecting - Shirley M. Mueller M.D.

https://www.psychologytoday.com/us/blog/the-mind-of-a-collector/202602/how-ai-is-rewiring-winemak...
1•omkar-foss•29m ago•1 comments

GPU Rack Power Density, 2015–2025

https://syaala.com/blog/gpu-rack-density-timeline-2026
1•jaynamburi•31m ago•1 comments

Lessons from Building Claude Code: Prompt Caching Is Everything

https://twitter.com/trq212/status/2024574133011673516
1•tosh•32m ago•0 comments

The Whispering Earring by Scott Alexander

https://croissanthology.com/earring?
1•nvader•34m ago•0 comments

Show HN: CLI tool to analyze your Vector Embeddings!

https://github.com/dakshjain-1616/Embedding-Evaluator
2•gauravvij137•35m ago•1 comments

A Buried History – Wooden Water Mains [video]

https://www.youtube.com/watch?v=1fntV0c-fYE
1•thunderbong•38m ago•0 comments

Large banner featuring Trump's face is displayed on Justice Department HQ

https://apnews.com/article/donald-trump-banner-justice-department-pam-bondi-13f3d901c9bd6d179e206...
2•stopbulying•38m ago•2 comments

Paul Ford: 'The A.I. Disruption Has Arrived, and It Sure Is Fun'

https://www.nytimes.com/2026/02/18/opinion/ai-software.html
2•polyglotfacto•39m ago•1 comments

Gemini 3.1 Pro be like

https://twitter.com/Google/status/2024598510499426433
1•chvid•40m ago•0 comments

N64 Game-Engine and Editor using libdragon and tiny3d

https://github.com/HailToDodongo/pyrite64
2•jdboyd•42m ago•0 comments

Show HN: ESP32-S3 probe – a UART "flight recorder" with auto frame decoder

https://github.com/choihimchan/linkscope-bpu-uart-analyzer
1•octablock•43m ago•0 comments

Show HN: PhotoMeh – Repair cost estimates from photos – in under 60 seconds

https://photomeh.com
1•arturss•56m ago•1 comments

On Artificial Intelligence by Naval

https://www.youtube.com/watch?v=sXCKgEl9hBo
1•mottiden•58m ago•1 comments

The Electric Tipping Point – Electric Aircraft

https://cascadiannick.substack.com/p/the-electric-tipping-point-electric
1•xbmcuser•1h ago•1 comments

Show HN: Wc-template – create custom elements using template and link

https://github.com/mfcc64/wc-template
1•mfcc64•1h ago•0 comments