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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/

I built a productivity utility to bring WhatsApp within reach on Mac

https://wamini.chat/
1•jackvanstone•1m ago•0 comments

Rune: A native GPU-rendered Rust UI framework for macOS, Windows, Linux and web

https://github.com/anomalyco/rune
1•mik3y•2m ago•0 comments

Fox Corp. Closes $22B Acquisition of Roku

https://deadline.com/2026/11/fox-corp-closes-roku-acquisition-1237215436/
2•jimt1234•4m ago•0 comments

BYD YANGWANG U9 Xtreme car has reached a 503.1 km/h

https://twitter.com/XH_Lee23/status/2118652280966873269
1•secondary_op•4m ago•0 comments

I Toured Unitree's Factory. I'm More Bullish on the West than ever

https://twitter.com/josefchen/status/2118740035117678826
1•josefchen•5m ago•0 comments

Steam gets restored games after EA producer stumbles across old tapes

https://www.rockpapershotgun.com/steam-gets-a-boatload-of-restored-wing-commanders-and-ultima-por...
2•Michelangelo11•9m ago•0 comments

Let's Chat with Lee Felsenstein – Sol-20/Osborne 1/Homebrew Computer Club [video]

https://www.youtube.com/watch?v=dBNrlOeaxIY
1•oldnetguy•9m ago•0 comments

AI coding agent setups from 663 Hacker News comments

https://theainewsreport.com/2026-11-06-hn-agentic-setups-counted.html
2•titusblair•9m ago•0 comments

The Nuclear Company Proposes 6.6-GW AP1000 Nuclear Campus in Kentucky

https://www.powermag.com/the-nuclear-company-proposes-6-6-gw-ap1000-nuclear-campus-in-kentucky/
2•mpweiher•10m ago•0 comments

What if 90% of your prompt is content you can't control?

https://www.brex.com/journal/articles/what-if-you-cant-control-your-prompt
2•ltononro•11m ago•0 comments

AI agent can move money in Stripe

https://stripe.dev/blog/your-ai-agent-can-move-money-in-stripe
2•ltononro•13m ago•2 comments

Grimes Joins Cast of Fully AI-Generated Movie 'Gods Don't Give Gifts'

https://gizmodo.com/grimes-shows-off-her-acting-chops-in-new-ai-movie-or-does-she-2000835869
1•bookofjoe•13m ago•1 comments

Chainalysis says breach exposed password hashes and live tokens

https://cointelegraph.com/news/chainalysis-cyberattack-password-hashes-live-tokens-exposed
2•6thbit•13m ago•0 comments

Show HN: A tool for looping and transcribing YouTube Videos

https://looptranscribe.com
1•javier123454321•13m ago•0 comments

Show HN: Infinity – Git-style branching for AI chats

https://infinitychat.app/
1•nkotov•14m ago•0 comments

Show HN: noise'r'us, like placekittens.com but for audio

https://noiserus.greg.technology/
1•gregsadetsky•14m ago•0 comments

The Harness: Deterministic Systems

https://klaviyo.tech/inside-the-harness-deterministic-systems-476413ae913b
3•tremdog•17m ago•0 comments

Addressing Corrupt Uses of Artificial Intelligence (2025) [pdf]

https://files.transparencycdn.org/images/2025_WorkingPaper_Addressing-Corrupt-Uses-of-Artificial-...
1•yubblegum•18m ago•0 comments

Scriptable GeoDNS: Leaving AWS for Bunny

https://vincent.bernat.ch/en/blog/2026-bunny-geodns
1•sshah03•18m ago•0 comments

Promethevs: Full DeepSeek-v4.1-Flash-1017, locally, on 12GB of VRAM

https://github.com/Magnvs7/Promethevs
2•ar-nelson•18m ago•0 comments

WebAssembly Specification Release 3.0 (2026-11-04)

https://webassembly.github.io/spec/core/
2•Tepix•19m ago•0 comments

The United States of Inference

https://subconscious-systems.github.io/united-states-of-inference/
1•Jackobrien•20m ago•1 comments

Six pallets of Nvidia GPUs worth $11.4M stolen in California in Aug 2026

https://www.tomshardware.com/pc-components/gpus/six-pallets-of-nvidia-gpus-worth-usd11-4-million-...
2•paaloeye•21m ago•0 comments

Devin Review 2.0

https://devin.ai/blog/devin-review-2
1•gmays•22m ago•0 comments

I tried to connect every GPU on the planet together (kinda)

3•lukefrisker•22m ago•2 comments

Democrats have the votes to make the Electoral College obsolete

https://therealnews.com/democrats-finally-have-the-votes-to-make-the-electoral-college-obsolete
4•vrganj•23m ago•2 comments

The Formula for Lovable Cities

https://worksinprogress.co/issue/the-forgotten-formula-for-lovable-cities/
1•rafaelc•23m ago•0 comments

AI models built outside the US and China are nearly a year behind

https://village.dev/blog/outside-the-us-and-china-the-world-is-building-last-years-ai/
3•kevin_hu•23m ago•0 comments

LeanPRM

https://twitter.com/rodney_lafuente/status/2118736694937629167
3•andes314•23m ago•0 comments

The Comprehensive Guide to the Bank of Nvidia

https://hntrbrk.com/investigations/nvidia
1•mxschumacher•23m ago•0 comments