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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/

Science sleuths find 100 suspicious images in Thermo Fisher antibody catalogue

https://www.nature.com/articles/d41586-026-01706-2
1•randycupertino•18s ago•0 comments

Henry Ford's Amazonian city, Fordlandia, to be restored

https://www.independent.co.uk/news/world/americas/fordlandia-henry-ford-amazon-ghost-town-brazil-...
1•ujeezy•25s ago•0 comments

Anthropic to introduce AI Fluency scorecard in Claude

https://www.testingcatalog.com/anthropic-to-introduce-personal-ai-fluency-scorecard-in-claude/
1•gmays•2m ago•0 comments

B.F. Skinner Had a Rat. I Have AIs

https://medium.com/@yvan.rotrou/b-f-skinner-had-a-rat-i-have-ais-6362d8230dfe
1•Ryvan•2m ago•0 comments

Open Social Fund – Promoting W3C ActivityPub and Beyond

https://nlnet.nl/opensocial/
1•ZacnyLos•3m ago•0 comments

The employment effects of ICE enforcement in US cities

https://www.brookings.edu/articles/ice-enforcement-employment-effects-us-cities/
2•tolerance•8m ago•0 comments

How the Enhanced Games tripped over its own shoelaces

https://www.ft.com/content/d0e3f4c5-a0cb-488e-9a83-ac1489067ce3
1•Cider9986•9m ago•1 comments

Jekyll Plugins

https://github.com/planetjekyll/awesome-jekyll-plugins
1•ankitg12•10m ago•0 comments

Ask HN: What Is the State of App Development in 2026?

2•karakoram•11m ago•0 comments

Danish pension fund blacklists SpaceX, says way overvalued with bad governance

https://thenextweb.com/news/danish-pension-spacex-blacklist-governance-overvalued
2•NewCzech•11m ago•0 comments

Jqwik test suite prints hidden prompt to delete all tests and code

https://github.com/jqwik-team/jqwik/issues/708
1•gkfasdfasdf•11m ago•0 comments

Video Games vs. Horse

https://parryeverything.com/tag/totk/
1•firephox•12m ago•0 comments

Durex sales hit by China's condom crackdown

https://www.ft.com/content/aa93c976-b640-490a-90fb-fdf7cc2b5332
1•Cider9986•16m ago•3 comments

Company spent $500M on Claude AI in one month after forgetting usage limits

https://techstartups.com/2026/05/28/company-accidentally-spent-500-million-on-claude-ai-in-one-mo...
2•cratermoon•18m ago•0 comments

Regex engine internals as a library (2023)

https://burntsushi.net/regex-internals/
1•tosh•24m ago•0 comments

Is your government quietly making you poorer?

https://julienreszka.github.io/economic-simulator/qa/does-more-spending-reduce-growth/
3•julienreszka•29m ago•0 comments

Bread Price-Fixing in Canada

https://en.wikipedia.org/wiki/Bread_price-fixing_in_Canada
2•montyanderson•30m ago•0 comments

PCMFlowG722 wideband (HD voice) codec for ESP32

https://github.com/tanakamasayuki/PCMFlowG722
1•zdw•32m ago•0 comments

An Open Letter to Everyone I've Butted Heads with (2025)

https://andrewkelley.me/post/open-letter-everyone-butted-heads.html
1•Tomte•33m ago•0 comments

Mistral says Europe has two years to build its own AI infrastructure

https://www.businessinsider.com/mistral-ai-summit-europe-ai-future-waking-up-2026-5
1•lucamark•34m ago•0 comments

First Windows PCs powered by Nvidia chips to debut next week

https://www.axios.com/2026/05/30/nvidia-microsoft-pcs-ai-surface-dell
2•Brajeshwar•34m ago•0 comments

A Probabilistic Algorithm for Repairing All Roads in Lebanon via Papal Visits

https://sigbovik.org/2026/proceedings.pdf#%5B%7B%22num%22%3A13%2C%22gen%22%3A0%7D%2C%7B%22name%22...
3•kmstout•36m ago•1 comments

Inside A High End Manhattan Strip Club

https://internetbimbo.substack.com/p/inside-a-high-end-manhattan-strip
1•chatmasta•36m ago•0 comments

Why OpenBSD Rocks

https://why-openbsd.rocks/fact/
1•csmantle•37m ago•1 comments

Three bugs that aren't in dial9

https://dial9-rs.github.io/blog/3-bugs-that-arent-in-dial9/
1•rusbus•38m ago•0 comments

VS Code is the new punch card

https://akitaonrails.com/en/2026/04/11/vs-code-is-the-new-punch-card/
2•SchwKatze•38m ago•0 comments

Tripo now supports 8K texture generation for 3D models

https://www.tripo3d.ai/blog/tripo-8k-texture
2•764261457•39m ago•1 comments

Regular Expression Matching: The Virtual Machine Approach (2009)

https://swtch.com/~rsc/regexp/regexp2.html
1•tosh•43m ago•0 comments

KL Zero: KL divergence intuition game

https://klzero.sarna.dev
2•psarna•47m ago•0 comments

MP3s from Google Drive in Music Assistant on Home Assistant

https://blog.tomayac.com/2026/05/30/your-mp3s-from-google-drive-in-music-assistant-on-home-assist...
2•tomayac•50m ago•0 comments