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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/

Vibe Coding as a Security Architect

https://rakkhi.substack.com/p/vibe-coding-as-security-architect
1•rakkhi•4s ago•0 comments

Show HN: I built a samurai-themed playable Résumé with React, Phaser, + Laravel

https://rzeczko.com/
1•grzeczko•3m ago•0 comments

Switch between three keyboard languages

https://mnaoumov.dev/posts/2023-12-17-switch-between-three-keyboard-languages/
1•ankitg12•4m ago•0 comments

Vigolium: Open-Source Vulnerability Scanner

https://www.helpnetsecurity.com/2026/05/27/vigolium-open-source-vulnerability-scanner/
1•SVI•4m ago•0 comments

This Film Cost $500,000 to Make. $400,000 Was AI Compute Costs

https://www.wsj.com/cio-journal/this-cannes-film-cost-500-000-to-make-400-000-was-ai-compute-cost...
2•thunderbong•7m ago•1 comments

Cyberduck – Talk with a Duck

https://rubberduckdebugging.com/cyberduck/
2•helloplanets•7m ago•0 comments

Bangladesh measles cases: children die within months

https://www.bbc.com/news/articles/cwy2d5d7wn5o
2•poppypetalmask•12m ago•0 comments

Federal Bureau of Investigations Internet Crime Report 2025 [pdf]

https://www.ic3.gov/AnnualReport/Reports/2025_IC3Report.pdf
1•Cider9986•14m ago•0 comments

California cheese mogul turned to AI agents to save his $50M business

https://finance.yahoo.com/sectors/technology/articles/meet-the-california-cheese-mogul-who-turned...
1•jackson-mcd•14m ago•0 comments

Four Big Takeaways from the FBI's Report on Internet Crime

https://www.wsj.com/tech/cybersecurity/internet-crime-fbi-report-fd7c16e8
2•Cider9986•15m ago•1 comments

98% Match. Wrong Person - Proton [video]

https://www.youtube.com/watch?v=MJ8yFRa_q4E
1•Cider9986•16m ago•0 comments

The Enhanced Games: A night of hypertrophic delirium in a Las Vegas parking lot

https://english.elpais.com/sports/2026-05-26/the-enhanced-games-a-night-of-hypertrophic-delirium-...
1•geox•18m ago•0 comments

Automatic Brag Document Generation

https://bostonaholic.github.io/reflect/
1•ankitg12•20m ago•0 comments

Basics of Film Financing

https://www.theentertainmentexpert.com/blog-2/mc3s3cmf1f5it5kweela85gw68mpv4
1•lispybanana•25m ago•0 comments

Open source toolkit to analyze your ChatGPT/Claude usage from exports

https://github.com/noah-chelednik/llm-export-analytics
2•chedai__•28m ago•0 comments

Gamification and Streaks Improve AI Developer Productivity

https://lobsterone.ai/blog/ai-developer-streaks-gamification/
1•ankitg12•29m ago•0 comments

Private Equity Woos Personal Injury Law Firms

https://news.bloomberglaw.com/business-and-practice/private-equity-woos-personal-injury-law-firms...
1•dbcooper•35m ago•0 comments

How we contain Claude across products

https://www.anthropic.com/engineering/how-we-contain-claude
1•dsr12•36m ago•0 comments

Russian censors target Visual Novel titles on Steam

https://xcancel.com/ebihimes/status/2059363728693608573
2•HelloUsername•37m ago•0 comments

Interactive Additive Synthesis Comic

https://melatonin.dev/additive-synth-comic/what-is-a-harmonic/
1•m_kos•39m ago•0 comments

Poverty Bayes: fitting million-parameter models for pennies with serverless MCMC

https://christopherkrapu.com/blog/2026/poverty-bayes-serverless-mcmc/
1•ckrapu•45m ago•0 comments

How should we think about Starship?

https://mceglowski.substack.com/p/how-should-we-think-about-starship
2•idlewords•47m ago•0 comments

Claude Code as a Daily Driver: Claude.md, Skills, Subagents, Plugins, and MCPs

https://arps18.github.io/posts/claude-code-mastery/
1•arps18•48m ago•0 comments

A locus-coeruleus model for LLM agents (phasic and tonic attention gain)

https://github.com/mrshanebarron/lc-attention
1•iampneuma•51m ago•0 comments

Hugh Broughton: The man designing more of Antarctica than anyone else

https://www.cnn.com/2026/05/25/style/antarctica-architecture-hugh-broughton
1•testfrequency•55m ago•0 comments

Build System Reworked

https://ziglang.org/devlog/2026/#2026-05-26
1•signa11•56m ago•0 comments

The underground mega tunnels redrawing the railway map of Europe

https://www.cnn.com/2026/05/26/travel/europe-rail-base-tunnels-alps
2•tkocmathla•58m ago•0 comments

How to Make xt850 Match xt 850

https://medium.com/@s_nikolaev/how-to-make-xt850-match-xt-850-2175e701fbfe
1•snikolaev•1h ago•0 comments

Self Hosted Jukebox with NFC Cards

https://www.pedaldrivenprogramming.com/2026/05/self-hosted-jukebox-with-nfc-cards/
2•Fudgel•1h ago•0 comments

Annotate PDF: A zero-server, privacy-first PDF annatator

https://annotatepdf.io/
1•prius-lab•1h ago•0 comments