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Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•11mo ago

Comments

trane_project•11mo 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/

The Great Reset: Navigating a Turbulent Post-AI World

https://breadcrumb.vc/the-great-reset-navigating-a-turbulent-post-ai-world-4b5b4d434c5b
1•sameer_singh17•2m ago•0 comments

Fried Quotations

https://docs.factorcode.org/content/article-fry.html
1•tosh•3m ago•0 comments

Keeping your GitHub Actions and workflows secure: Preventing pwn requests (2021)

https://securitylab.github.com/resources/github-actions-preventing-pwn-requests/
1•thinkingemote•3m ago•0 comments

Show HN: Aptui-TUI package manager for APT-based Linux distributions

https://github.com/mexirica/aptui
1•mexirica•4m ago•0 comments

Show HN: Alacritree, terminal with built-in worktree management

https://github.com/mathix420/alacritree
1•mathix•6m ago•0 comments

Is the modern premium EDC knife markup justified?

http://Link:paragon-knives.com
1•bgzlsxaz•6m ago•0 comments

Rob Pike: Tech industry losing its soul

https://hachyderm.io/@robpike/116557975987213548
1•anygivnthursday•7m ago•0 comments

Fortress Co-Founder Allegedly Extorted by Sexual Partner

https://www.wsj.com/us-news/law/fortress-co-founder-allegedly-extorted-by-sexual-partner-ee9d6666
2•Michelangelo11•9m ago•0 comments

Arene Base

https://github.com/woven-by-toyota/arene-base
1•intern4tional•9m ago•2 comments

Made a New Side Project - Free to use

https://old.reddit.com/r/sideprojects/comments/1tabelm/finished_making_this_url_shortener_complet...
1•godlymod•11m ago•0 comments

Build, edit, and analyze forms directly in Claude

https://www.jotform.com/claude/
1•aytekin•12m ago•0 comments

Linux bitten by second vulnerability in as many weeks

https://arstechnica.com/security/2026/05/linux-bitten-by-second-severe-vulnerability-in-as-many-w...
3•isaacfrond•13m ago•0 comments

Show HN: An implementation of Common Lisp in development, reached version 1.6

https://savannah.nongnu.org/news/?id=10889
1•andreamonaco•13m ago•0 comments

Relieving power grids: Parked electric cars charge electric ferries

https://www.heise.de/en/news/Relieving-power-grids-Parked-electric-cars-charge-electric-ferries-1...
1•doener•13m ago•0 comments

Improving Technical Documentation with Mermaid Diagrams

https://mdview.io/s/mermaid-diagrams-for-software-developers
2•Igor_Wiwi•18m ago•0 comments

LLM Hallucinations in the Wild

https://arxiv.org/abs/2605.07723
1•anygivnthursday•19m ago•1 comments

Peter Wang: The Life of Py My First 20 Years of Python [video]

https://www.youtube.com/watch?v=dtS0SEdhbbg
1•tosh•20m ago•0 comments

CSS Rhythmic Sizing Module Level 1

https://www.w3.org/TR/css-rhythm-1/
1•gudzpoz•22m ago•0 comments

Strange crystals found inside wreckage from the first nuclear bomb test

https://www.scientificamerican.com/article/strange-crystals-found-inside-wreckage-from-the-first-...
2•beardyw•23m ago•0 comments

Can a Language Model Paint?

https://www.etive-mor.com/blog/can-a-language-model-paint/
3•liamlaverty•24m ago•2 comments

The Scrum decline: It's three years later, and I was right

https://www.leadinginproduct.com/p/scrum-decline
1•benkan•26m ago•0 comments

Anthropic's Mythos was greatest marketing stunt ever, says cURL creator

https://www.theregister.com/security/2026/05/11/anthropics-bug-hunting-mythos-was-greatest-market...
1•isaacfrond•26m ago•0 comments

Microsoft researchers find AI models and agents can't handle long-running tasks

https://www.theregister.com/ai-ml/2026/05/11/microsoft-researchers-find-ai-models-and-agents-cant...
2•beardyw•28m ago•0 comments

Show HN: I built a fair-price checker App for home repairs using BLS wage data

https://apps.apple.com/us/app/quotebuster/id6765996986
3•manojtrek•31m ago•0 comments

I Think I Figured Out What an AI IDE Looks Like

https://taoofmac.com/space/blog/2026/05/12/0720
1•rcarmo•32m ago•0 comments

Universal Approach to Self-Referential Paradoxes (2003)

https://arxiv.org/abs/math/0305282
1•measurablefunc•32m ago•0 comments

The Human Body's Hidden Pathways

https://www.nytimes.com/interactive/2026/05/11/magazine/interstitium-anatomy-acupuncture-medicine...
2•wanderingmind•34m ago•0 comments

People Don't Buy Products, They Buy Better Versions of Themselves (2014)

https://buffer.com/resources/people-dont-buy-products-they-buy-better-versions-of-themselves/
3•downbad_•35m ago•0 comments

Toxicity on Social Media – The Noisy Room

https://thenoisyroom.com
1•skm•37m ago•0 comments

Show HN: World Cup History MCP – every FIFA tournament 1930–2026

https://api.zafronix.com/wc-explorer/
1•zafronix•38m ago•2 comments