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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/

24/7 Renewables Outcompete Fossil Fuels on Costs

https://www.irena.org/News/pressreleases/2026/May/24-7-Renewables-Outcompete-Fossil-Fuels-on-Firm...
1•xbmcuser•3m ago•0 comments

Trump admin shutting key US researchers out of global virus response talks

https://www.cnn.com/2026/05/25/politics/global-virus-response-trump-administration
1•doener•10m ago•0 comments

Dangerously-skip-permissions is the only safe mode

https://www.granola.ai/blog/dangerously-skip-permissions-is-the-only-safe-mode
1•p44v9n•15m ago•0 comments

Maybe Don't Rely on Google's "Modern Web Guidance"

https://adrianroselli.com/2026/05/maybe-dont-rely-on-googles-modern-web-guidance.html
1•moebrowne•15m ago•0 comments

Chinese Room re-visited: How LLM's have real but different understanding of word

https://www.lesswrong.com/posts/PpCHgKsg2xDdPDQhu/the-chinese-room-re-visited-how-llm-s-have-real...
1•stevefan1999•18m ago•0 comments

Market Makers Print Money

https://zozo123.github.io/market-making-sandbox/
1•zozo123-IB•19m ago•0 comments

Owl 3: A minimalist UI framework built on Signals and Proxies

https://odoo.github.io/owl/documentation/v3/owl/
2•pointedulac•20m ago•0 comments

BadHost – CVE-2026-48710 Starlette Host-Header Auth Bypass

https://mcp-scan.nemesis.services/
2•ylk•21m ago•1 comments

Proposals for cyber-propaganda de-escalation

https://www.tandfonline.com/eprint/3VSGIKQQFNMBQXMCS7BR
1•instagraham•22m ago•0 comments

Agile, as we know it, is disappearing

https://ajagara.com/en/blog/agile-wie-wir-es-kennen-verschwindet/
1•fcse•22m ago•0 comments

India moves a step closer to 114 Rafales deal: 'LoR ready to be sent to France'

https://timesofindia.indiatimes.com/india/india-moves-a-step-closer-to-114-rafales-deal-lor-for-m...
1•vrganj•23m ago•0 comments

GPU-Accelerated Alpha Factor Discovery: 30x Faster Than Python GPLearn

https://medium.com/@DolphinDB_Inc/30x-faster-alpha-factor-mining-the-gpu-edge-every-quant-needs-5...
2•CrazyTomato•28m ago•0 comments

How Claude helped me to find a RCE in XReader/Evince/Atril

https://medeiros.zip/posts/CVE-2026-46529-evince
1•0x38B•28m ago•0 comments

End of an Era: Iconic Shibuya Hands to Close After 48 Years

https://spoon-tamago.com/iconic-shibuya-hands-to-close-november/
1•thm•28m ago•0 comments

Build High-Frequency Order Books from Tick Data

https://medium.com/@DolphinDB_Inc/build-high-frequency-order-books-from-tick-data-9da2a6cc2fcf
2•Polly_Liu•30m ago•0 comments

Physical Lens on the Cell

https://physicallensonthecell.org/
1•o4c•34m ago•0 comments

PrivatePulse – Estimate what your private company equity is worth today

https://www.privatepulse.online
1•OscarDK•34m ago•0 comments

It's Hot, Close the Windows

https://www.eneigualauno.com/mental/meanderings/2026/05/25/hot-close-the-window.html
2•reallydontask•36m ago•0 comments

Medieval King Arthur manuscript could fetch £2M at auction

https://www.theguardian.com/books/2026/may/26/medieval-king-arthur-manuscript-auction
2•sandebert•40m ago•0 comments

Inside Google’s Agentic Search Revolution

https://puck.news/inside-googles-agentic-search-revolution/?sharer=425101&token=b032e98a72528abbe...
2•thm•41m ago•0 comments

Checking the math behind OpenAI and Anthropic's latest headlines

https://garymarcus.substack.com/p/checking-the-math-behind-openai-and
2•ColinWright•42m ago•0 comments

How to write code, miss every deadline, and make everyone miserable

https://github.com/Senuto/nodeshub-seo-skills
1•NodesHub•44m ago•1 comments

Scoped Error in Rust

https://kanru.info/scoped-error/
1•fanf2•46m ago•0 comments

The robots are replacing the packages

https://spatie.be/blog/the-robots-are-replacing-the-packages
1•moebrowne•52m ago•0 comments

A Practical Order Matching Framework for High-Frequency Strategy Backtesting

https://medium.com/@DolphinDB_Inc/a-practical-order-matching-framework-for-high-frequency-strateg...
3•dbaa4real•53m ago•0 comments

OpenClaw for Sales – Using Local-First AI Agents for Sales Workflows

https://www.kickscale.com/en/blog/openclaw-sales-ai-agent-revolution
3•mjenul•54m ago•0 comments

25th of May – Towel Day

https://en.wikipedia.org/wiki/Towel_Day
2•smig0•54m ago•0 comments

The Simula One: Linux VR Computer

https://shop.simulavr.com/
2•poly2it•56m ago•0 comments

Your Python Scraper Has a Tell. Curl-Cffi Is How You Hide It

https://medium.com/@farbodkhorramvatan/your-python-scraper-has-a-tell-curl-cffi-is-how-you-hide-i...
4•theanonymousone•1h ago•0 comments

Autonomous bus collided with tram on its first day of service in Sweden

https://brusselssignal.eu/2026/05/tram-hits-self-driving-bus-on-first-day-of-passenger-service-in...
4•zx8080•1h ago•0 comments