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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/

Cyber-security issue hitting sites worldwide prompts 'millions' of hacking...

https://www.bbc.co.uk/news/live/ckgel5xp2xv9t
1•chrisjj•35s ago•0 comments

France and the Limits of Liberalism

https://www.noahpinion.blog/p/france-and-the-limits-of-liberalism
1•barry-cotter•2m ago•0 comments

Show HN: Pith – a proxy that cuts LLM output tokens, and refuses when it can't

https://github.com/dex0shubham/pith
1•dex0shubham•3m ago•0 comments

Chinese stocks turn biggest losers as global AI trade stumbles

https://theedgemalaysia.com/node/822195
3•miohtama•4m ago•1 comments

Could Treating AI as Conscious Make It More Dangerous?

https://spectrum.ieee.org/china-rare-earth-minerals
2•Bluestein•5m ago•0 comments

Why dating apps struggle to find a match with investors

https://finshots.in/archive/why-dating-apps-struggle-to-find-a-match-with-investors/
1•vismit2000•7m ago•0 comments

Zahada – most challenging riddles online

https://www.mcgov.co.uk/zahada.html
1•xkcd1963•9m ago•0 comments

Brotli on Nginx thread pools: ngx_mbrotli vs. ngx_brotli

https://m-compressors.github.io/2026/ngx-mbrotli-thread-pool-benchmarks/
1•Mnwa•14m ago•0 comments

Evaluating Memory Systems for AI Agents Is Harder Than It Looks

https://x.com/AgentMemoryL
2•IreneAI•14m ago•0 comments

A Non-Local, Retarded Extension of the Schrödinger Equation: QPM

https://figshare.com/articles/preprint/_p_dir_ltr_Quantum_Phase_Memory_and_Self-Coupled_Dynamics_...
1•kisnorbert•14m ago•0 comments

Show HN: Continue a ChatGPT/Claude/Gemini chat in another free AI at the limit

https://aifreetoday.com/us/transfer-chat/
1•kiterentev•19m ago•0 comments

Don't Yell at Your Agents

https://www.youtube.com/watch?v=VcIlkaI0mUk
2•claudiacsf•23m ago•0 comments

Information for Python users regarding eMudhra / emSign CA certificate security

https://discuss.python.org/t/information-for-python-users-regarding-emudhra-emsign-ca-certificate...
2•tosh•23m ago•0 comments

Palantir says it cannot shut off NATO AI systems

https://www.reuters.com/business/media-telecom/palantir-says-it-cannot-shut-off-nato-ai-system-eu...
1•doener•24m ago•1 comments

Tell HN: I unknowingly broke the PHP RCE embargo. I am sorry.

6•petecooper•24m ago•0 comments

The economics of all-you-can-eat buffets (2024)

https://thehustle.co/the-economics-of-all-you-can-eat-buffets
2•theanonymousone•25m ago•0 comments

I wrote a Windows runtime from scratch to run PC VR games on Apple Silicon

https://github.com/Ag3497120/VeRantyx
2•kofuudai•25m ago•0 comments

I Built an Interactive Sandbox to Learn Distributed Systems

https://shardcraft.dev/
1•galibi•27m ago•0 comments

What type of apartments are available at Rosemont Residency?

1•cemaljustime•30m ago•0 comments

Booking.com faces EU investigation over scams and hidden ads

https://www.courthousenews.com/booking-com-faces-eu-investigation-over-scams-and-hidden-ads/
1•hggh•32m ago•0 comments

AI-Assisted Product Discovery: How to Succeed and How to Fail

https://www.youtube.com/watch?v=gJ-rYxlkVPg
2•swolpers•34m ago•0 comments

Meta strikes deal with Zuckerberg to keep him in Calif. over billionaire tax

https://www.sfgate.com/tech/article/zuckerberg-billionaire-tax-22488181.php
1•doener•34m ago•0 comments

SketchUp Step Importer

https://github.com/eugenyh/SketchUp-Step-Importer
1•EugenyH•35m ago•0 comments

Show HN: ExplAIn, a free directory of compliance scores for AI tools

https://www.explain-ai.com
1•ezrabuenk•36m ago•1 comments

A smart patch that can measure your pulse without electronics

https://norwegianscitechnews.com/2026/10/a-smart-patch-that-can-measure-your-pulse-without-electr...
3•giuliomagnifico•37m ago•0 comments

Rules of Machine Learning (2017) [pdf]

http://martin.zinkevich.org/rules_of_ml/rules_of_ml.pdf
1•BenoitP•37m ago•0 comments

Vitest Dev Server Secret Leak (CVE-2026-112948)

https://github.com/advisories/GHSA-p458-7748-mcp3
2•mumairrana007•38m ago•0 comments

We built a document AI that reads but doesn't write

https://www.nutrient.io/blog/decision-model-for-documents/
1•marakiii•43m ago•0 comments

Manual guideline to download Office 365 mailbox to PST, EML, MSG and MBOX format

https://www.mailsdaddy.com/blogs/how-to-backup-office-365-mailbox-for-free/
1•somit0•44m ago•0 comments

Why does this chart just go down? 0 once again marks the spot

https://lapcatsoftware.com/articles/2026/10/7.html
1•latexr•44m ago•0 comments