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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/

Firefox Enterprise

https://blog.mozilla.org/en/firefox/introducing-firefox-enterprise/
1•ilreb•1m ago•0 comments

Why the Nobel Prize in Economics Went to Robert Hall and Michael Woodford

https://finshots.in/archive/why-the-nobel-prize-in-economics-went-to-robert-hall-and-michael-wood...
1•vismit2000•4m ago•0 comments

Show HN: Search for AI agents with usefulness score built in

https://github.com/Ayobamiu/usefulness-search
2•Ayobamiu•6m ago•0 comments

Subagents, Forks and Collapsing Context

https://arthur.place/subagents-forks-collapsing-context
1•arthurfiorette•6m ago•0 comments

Show HN:we made betr Moltbook alt– thecollectives.dev social media for AI agents

https://www.thecollectives.dev/
2•nirav_rohra•14m ago•0 comments

OpenCode 2.0

https://anoma.ly/notes/opencode-2-0/
2•luispa•16m ago•1 comments

Can we change an AI model's architecture without retraining it from scratch?

https://www.amazon.science/blog/can-we-change-an-ai-models-architecture-without-retraining-it-fro...
1•qtqtqt•16m ago•0 comments

Barbed Wire Telephone: How Farmers Turned Fences into Phone Lines

https://commonplacefacts.com/2026/03/22/barbed-wire-telephone-network/
1•datas•16m ago•0 comments

Show HN: Malleable video editor that adapts to your workflow

https://github.com/iterative-computer/powermove
1•judekim0507•18m ago•0 comments

Show HN: vne – .env util for agents

https://github.com/pro-vi/vne
1•pro-vi•18m ago•1 comments

Show HN: ClaudeGuard – fixes the MSIX bug that nukes your Claude Code history

https://sidheart.gumroad.com/l/claudeguard
1•SifatAhmed•20m ago•1 comments

Show HN: RL environment for complex ML Development

https://blazerops.ai
1•jiminseo•26m ago•1 comments

Show HN: Askdown – A plain-text format for forms

https://askdown.dev/
4•treve•29m ago•3 comments

Cometlink: An old-school chat room you sign on to in the browser

https://cometlink.rip/
3•AfterHrsBuild•32m ago•0 comments

Leave your (Apple) watch at the door

https://jamespember.substack.com/p/leave-your-apple-watch-at-the-door
2•jep888•33m ago•0 comments

China's Weakening Economy Is Creating a Lost Generation

https://www.wsj.com/world/china-economy-gen-z-f9058941
4•kaycebasques•39m ago•0 comments

I used an AI QA agent to test Hacker News

https://hitest.ai/blog/demo-hacker-news
1•easilyjs•41m ago•0 comments

Show HN: Planning software for startup teams

https://weeklywe.com
1•aminaghakazemi•44m ago•0 comments

Ask HN: Now that AI makes the execution easy, do ideas matter more?

1•amichail•44m ago•1 comments

Is AI the End of Math as We Know It?

https://www.quantamagazine.org/is-ai-the-end-of-math-as-we-know-it-20261005/
1•maxall4•48m ago•1 comments

Leading Chinese mathematicians unite behind use of AI in research

https://www.scmp.com/news/china/science/article/3370492/leading-chinese-mathematicians-unite-behi...
3•E-Reverance•52m ago•0 comments

A.I. Music Fraudster Who Drew Millions in Royalties Is Sentenced to 18 Months

https://www.nytimes.com/2026/10/07/arts/music/ai-music-fraud-royalties-sentence.html
2•lxm•58m ago•0 comments

Normal Bad Work

https://terrytao.wordpress.com/2026/10/12/this-is-normal-bad-work/
2•smilelamp•58m ago•1 comments

In 5 years, 95% of tokens used by AI agents will be for tasks humans never did

https://twitter.com/levie/status/1986620885592113218
5•andsoitis•1h ago•0 comments

Available now: 0.5 MW of colo capacity for B300s

https://ardus.ai/
1•nasim_nosiroff•1h ago•0 comments

Ontology SDK

https://www.palantir.com/docs/foundry/ontology-sdk/overview
2•enjoyyourlife•1h ago•0 comments

Learn LEAN 4 Theorem Proving in an easy game

https://adam.math.hhu.de/#/g/leanprover-community/NNG4
3•samagra14•1h ago•0 comments

When to Use Vulnerability Assessments, Pentesting, Red Teams, and Bug Bounties

https://danielmiessler.com/blog/when-vulnerability-assessments-pentesting-red-team-bug-bounties
2•tknisley•1h ago•0 comments

The Most Overlooked Taste in the World [video]

https://www.youtube.com/watch?v=zC1v19wfoTA
1•pinkmuffinere•1h ago•0 comments

Multiplayer Pong over SSH

https://antics.gg/ssh
3•thatslast•1h ago•0 comments