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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/

Building a Korean ambiguity solver fast enough to skip the GPU: 7,300 words/SEC

https://kimchi-reader.app/blog/int8-cpu-korean-disambiguation
1•alaanor•33s ago•0 comments

Think Music Jobs

1•Ai-Dir•34s ago•0 comments

AI and the invisible newcomer in open source

https://blog.stdlib.io/ai-and-the-invisible-newcomer-in-open-source/
1•kgryte•59s ago•0 comments

World Capitals Voronoi

https://www.jasondavies.com/maps/voronoi/capitals/
1•vincnetas•1m ago•1 comments

Amid a flood of AI advances astrophysicists are questioning soul of their field

https://www.science.org/content/article/amid-flood-ai-advances-astrophysicists-are-questioning-so...
1•bookofjoe•1m ago•0 comments

Ideogram 4.0

https://ideogram.ai/models/4.0/
1•pentagrama•1m ago•0 comments

Amazon Cognito now supports multi-Region replication

https://aws.amazon.com/about-aws/whats-new/2026/06/amazon-cognito-multi-region/
2•mooreds•2m ago•0 comments

Life – an artificial life simulation with Φ* integrated information

https://github.com/cosmosoneness/Cosmos-Research-Institute/tree/main/Emulation/Life
1•cosmosoneness•2m ago•0 comments

Show HN: OceanEye – an open-source interactive 3D atlas of ocean life

https://oceaneye.woodydesign.io/en/
1•woodydesign•2m ago•0 comments

Show HN: Xa11y – cross-platform desktop automation via accessibility trees

https://xa11y.dev/
1•_crowecawcaw•3m ago•0 comments

France took the nuclear option to make Putin think twice

https://www.telegraph.co.uk/world-news/2026/05/26/how-europe-learnt-to-love-the-bomb/
1•speckx•4m ago•0 comments

Meta AI Instagram Hack Wasn't About Authentication. It Was About Authorization

https://www.cybersecurity-insiders.com/the-meta-ai-instagram-hack-wasnt-about-authentication-it-w...
1•mooreds•4m ago•0 comments

Applied Reverse Engineering Course

https://revers.engineering/applied-reverse-engineering-series/
1•Iuz•5m ago•0 comments

'The rich are living a golden age under Trump'

https://english.elpais.com/economy-and-business/2026-06-06/the-popularizer-of-the-k-shaped-econom...
1•mooreds•5m ago•0 comments

Introduction to nixidy – Kubernetes GitOps with Nix

https://codedbearder.com/posts/nixidy-part-1-introduction/
1•granra•5m ago•0 comments

Property-Based Testing

https://tybug.dev/property-testing/
1•tybug•6m ago•0 comments

A Farmer Donated Land to Turn into a Park. The City Is Building a Data Center

https://www.404media.co/a-farmer-donated-land-to-turn-into-a-park-the-city-is-building-a-massive-...
1•greedo•7m ago•0 comments

Reading of OpenAI's Self-Improving Tax Agents

https://olshansky.info/posts/2026-06-08-reading-of-openais-self-improving-tax-agents
2•Olshansky•7m ago•0 comments

xAI is looking more like a datacentre REIT than a frontier lab

https://martinalderson.com/posts/xais-new-rental-business/
1•martinald•8m ago•0 comments

Show HN: Levi – run AlphaEvolve on your Claude Code/Codex for dirt cheap

https://ttanv.github.io/levi/
2•ttanv•9m ago•0 comments

"a game of court intrigue where AI simulates the various courtiers"

https://substack.com/@alicemaz/note/c-265000587
1•pavel_lishin•10m ago•0 comments

The Myth, the Mythos and the Man

https://om.co/2026/06/07/the-myth-the-mythos-and-the-man/
1•herbertl•11m ago•0 comments

Unhook, extension to block YouTube suggestion feeds, comments, and more

https://unhook.app/
1•sanbor•11m ago•0 comments

Diet Culture Ruins Lives

https://lithub.com/how-diet-culture-ruins-lives/
1•PaulHoule•12m ago•0 comments

"Chat is dead": OpenAI preps overhaul of ChatGPT

https://arstechnica.com/ai/2026/06/chat-is-dead-openai-preps-overhaul-of-chatgpt/
1•kylemaxwell•12m ago•0 comments

Somalia: The way forward – fourteen years later

https://wardheernews.com/somalia-the-way-forward-fourteen-years-later/
1•paulpauper•12m ago•0 comments

Biological Origin for the Ancient Alkanes Preserved in a Martian Mudstone

https://journals.sagepub.com/doi/10.1177/15311074261417879
2•simonebrunozzi•12m ago•0 comments

Alan Riding, Times Correspondent in Latin America and Paris, Dies at 82

https://www.nytimes.com/2026/06/06/business/media/alan-riding-dead.html
1•paulpauper•12m ago•0 comments

Hayekian Literary Criticism

https://marginalrevolution.com/marginalrevolution/2026/06/hayekian-literary-criticism.html
1•paulpauper•13m ago•0 comments

Spread

https://github.com/odipar/spread
1•tosh•15m ago•0 comments