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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/

Niaid funded Wuhan Institute of Virology coronavirus gain-of-function research

https://www.dni.gov/index.php/newsroom/press-releases/press-releases-2026/4166-pr-11-26
1•stinkbeetle•1m ago•0 comments

China targets U.S. firms in retaliation for Pentagon blacklist

https://www.cnbc.com/2026/06/22/china-trade-curbs-us-companies-export-controls-procurement-exclus...
1•ilreb•5m ago•0 comments

Timesharing on the MIT Weather Radar PDP-8/IX

https://retrocomputingforum.com/t/timesharing-on-the-mit-weather-radar-pdp-8-ix/5569
1•signa11•10m ago•0 comments

ILX Launcher – a developer cockpit for Python apps (hot reload, crash capture)

https://github.com/ilxstudio/ILX-Launcher
1•ilxstudio•13m ago•0 comments

Simple Test Please Ignore

1•easterndev•14m ago•0 comments

Hundred Hour Workweek

https://jeremynixon.net/100-hr-workweek
1•jeremynixon•15m ago•1 comments

Test Post – Please Ignore

3•easterndev•16m ago•2 comments

Lloyd's Lab: Accelerating innovation in the insurance industry (2023) [pdf]

https://assets.lloyds.com/media/dc22cd29-1c4e-441c-a872-e1bf5ce9142a/Lloyds%20Lab_impact%20report...
1•mooreds•22m ago•0 comments

When AI Agents Do the Work, What Do We Lose?

https://milvus.io/blog/when-ai-agents-do-the-work-what-do-we-lose.md
1•Fendy•25m ago•0 comments

Show HN: Crespo – Tree-sitter AST blueprints instead of raw code for LLMs

https://github.com/hrudulmmn/crespo
1•ByteJoseph•30m ago•0 comments

Show HN: I applied Lyapunov stability theory to detect when LLM agents spiral

https://github.com/vishal-dehurdle/state-harness
1•visha1v•31m ago•0 comments

Telegram founder accuses Meta of sabotaging access in India with BGP hijacks

https://www.theregister.com/networks/2026/06/19/telegram-founder-accuses-meta-of-sabotaging-acces...
3•thisislife2•32m ago•1 comments

Manifest for RISC-V Constant Time Floating-Point Operations

https://fprox.substack.com/p/manifest-for-risc-v-constant-time
1•hasheddan•46m ago•0 comments

The Flat Curve Society

https://steve-yegge.medium.com/the-flat-curve-society-36c8b01eb33b
10•fbuilesv•49m ago•2 comments

Why Gen Z Is Nostalgic for a Digital World They Never Knew

https://decodingvibes.com/blog/genz-and-frutiger-aero/
1•altmanaltman•52m ago•0 comments

The Story of the UK General Strike

https://www.nationalarchives.gov.uk/explore-the-collection/stories/the-general-strike/
1•petethomas•54m ago•0 comments

Show HN: Open-source Notion-style personal site / blog

https://github.com/terryds/notion-style-personal-site
1•terryds•55m ago•0 comments

Progressive Disclosure

https://en.wikipedia.org/wiki/Progressive_disclosure
1•Austin_Conlon•56m ago•0 comments

Trump Ally Wins Colombia Election, Heralding Pro-Market Turn

https://www.bloomberg.com/news/articles/2026-06-22/trump-ally-wins-colombian-election-heralding-p...
1•baristaGeek•1h ago•1 comments

Show HN: HyperSnatch – local-first evidence workstation for Windows

https://github.com/Z3r0DayZion-install/hypersnatch/releases/tag/v1.6.11
1•neuralshell•1h ago•0 comments

Show HN: Typevia live LaTeX editing with AI assistance

https://www.typevia.com/
2•Niqht•1h ago•0 comments

Geopolitical jitters push Europe's internet registry away from cloud strategy

https://www.theregister.com/networks/2026/06/19/geopolitical-jitters-push-europes-internet-regist...
2•mooreds•1h ago•0 comments

Therapy ferrets used to kill rats at UK's largest children's prison

https://www.theguardian.com/society/2026/jun/21/therapy-ferrets-kill-rats-uk-largest-children-pri...
3•mooreds•1h ago•3 comments

WebGPU feature detection was not enough to run small LLMs on phones

https://ludion.ai/blog/webgpu-reports-vs-reality/
1•Littice•1h ago•0 comments

Speculation Is All You Need

https://modal.com/blog/spec-is-all-u-need
1•birdculture•1h ago•0 comments

Fugu: Learn to assemble, route, and coordinate expert agents [pdf]

https://github.com/SakanaAI/fugu/blob/main/Fugu_technical_report.pdf
2•saran945•1h ago•0 comments

Extreme Time Value of Money: Late-Stage Career Planning (2021)

https://newsletter.kentbeck.com/p/extreme-time-value-of-money-late
1•mooreds•1h ago•0 comments

Manticore Search 27.1.5

https://manticoresearch.com/blog/manticore-search-27-1-5/
2•snikolaev•1h ago•1 comments

Chile turned to China for an undersea cable. The U.S. said no

https://restofworld.org/2026/chile-china-america-google-cable/
3•higginsniggins•1h ago•0 comments

AI Watchdog

https://www.theatlantic.com/category/ai-watchdog/
1•mikhael•1h ago•0 comments