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Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•6mo ago

Comments

trane_project•6mo 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/

What's new in Swift: December 2025 Edition

https://www.swift.org/blog/whats-new-in-swift-december-2025/
1•g0ld3nrati0•1m ago•0 comments

Capital One is wary about its rising Amazon cloud AI costs

https://www.businessinsider.com/nvidia-memo-capital-one-explores-aws-alternatives-ai-control-cost...
1•cebert•1m ago•0 comments

2025 was the beginning of the end of the TV brightness war

https://www.theverge.com/tech/841054/tv-brightness-hdr-2025
1•jnord•2m ago•0 comments

James Webb Space Telescope confirms first 'runaway' supermassive black hole

https://www.space.com/astronomy/black-holes/james-webb-space-telescope-confirms-1st-runaway-super...
1•jnord•3m ago•0 comments

Intel's new Arizona fab, where the chipmaker's fate hangs in the balance

https://www.cnbc.com/2025/12/19/intel-aims-to-find-clients-and-catch-tsmc-with-new-chip-fab-in-ar...
1•giuliomagnifico•7m ago•0 comments

OpenAI might train on responses API data

1•kissgyorgy•8m ago•0 comments

(Generational) Shenandoah GC (Low Latency) Support in GraalVM Native Images

https://github.com/oracle/graal/issues/12237
1•lichtenberger•9m ago•0 comments

Tips for Buying Servers in 2026

https://blog.rackout.net/buying-servers-2026-tips-surviving-ram-ssd-price-spikes
2•matt-p•17m ago•3 comments

Show HN: SoundlyFM, a minimal radio app for background listening

https://soundlyfm.com/
1•onecookie•20m ago•0 comments

How I Made My Own Apple Watch – In China [video]

https://www.youtube.com/watch?v=DsWTz8NrXOY
1•xbmcuser•20m ago•0 comments

LoongArch Promoted to Being an Official Architecture for Debian 14

https://www.phoronix.com/news/Debian-LoongArch64-Official
2•rbanffy•21m ago•0 comments

Building a Multi- Site Kubernetes Cluster with BGP Anycast

https://kyriakos.papadopoulos.tech/posts/multi-site-kubernetes-bgp/
1•voxadam•22m ago•1 comments

Why Some Men Pretend to Work 80-Hour Weeks (2015)

https://hbr.org/2015/04/why-some-men-pretend-to-work-80-hour-weeks
2•dvfjsdhgfv•23m ago•1 comments

You Are Not the Code

https://double-dissent.fika.bar/you-are-not-the-code-01KBYRMJG8W0PC853BHAKW5JC4
1•txus•23m ago•0 comments

With Less Regulation, Your Oura Ring Could Do More

https://www.wsj.com/opinion/with-less-regulation-your-oura-ring-could-do-more-af90a76d
1•Bostonian•24m ago•1 comments

Hackers Stole Pornhub Users' Data for Extortion

https://www.wired.com/story/security-news-this-week-hackers-stole-millions-of-pornhub-users-data-...
3•fleahunter•29m ago•0 comments

Deploy your podcast server fed from from YouTube channels

https://github.com/n0vella/yt2podcast
2•n0vella•32m ago•1 comments

This Rocket Engine Wasn't Designed by Humans [video]

https://www.youtube.com/watch?v=6Xx1GXjRbMk
1•zeristor•38m ago•1 comments

Y Combinator

https://twitter.com/tsoding/status/2002207228070105287
2•throwaway2027•40m ago•0 comments

Airbus moving critical systems away from AWS, Google, and MS

https://old.reddit.com/r/europe/comments/1pqucbz/airbus_moving_critical_systems_away_from_aws/
4•taubek•41m ago•0 comments

delete me babeh

1•casenmgreen•45m ago•0 comments

Qntm's Power Tower Toy

https://qntm.org/files/knuth/knuth.html
1•ravenical•46m ago•0 comments

Do You Know What Time It Is? If You're on Mars, Now You Do

https://www.universetoday.com/articles/do-you-know-what-time-it-is-if-youre-on-mars-now-you-do
1•rbanffy•46m ago•0 comments

Building the AI Factory Datacenter

https://www.nextplatform.com/2025/12/18/building-the-ai-factory-datacenter/
1•rbanffy•47m ago•0 comments

Revenge of the Dilettantes

https://contraptions.venkateshrao.com/p/revenge-of-the-dilettantes
1•jger15•49m ago•0 comments

Making Contrails Visible: AI Insights into Aviation's Climate Impact Using Sat

https://zenodo.org/records/17534712
1•complex_pi•55m ago•1 comments

Computer Crime in 1980 at DePaul University [video]

https://www.youtube.com/watch?v=Z8eh4v7z2Rk
1•SirFatty•58m ago•2 comments

Amstrad PPC 640 cyberdeck gets a Raspberry Pi makeover

https://www.raspberrypi.com/news/amstrad-ppc-640-cyberdeck-gets-a-raspberry-pi-makeover/
1•rcarmo•59m ago•0 comments

Generative AI hype distracts us from AI's more important breakthroughs

https://www.technologyreview.com/2025/12/15/1129179/generative-ai-hype-distracts-us-from-ais-more...
1•adrianhoward•59m ago•0 comments

AI-driven RSS feed summarizer

https://github.com/rcarmo/feed-summarizer
1•rcarmo•1h ago•0 comments