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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/

Security Engineering: The Craft Has Changed

https://alexanderschroll.com/blog/the-craft-has-changed/
1•smurda•1m ago•0 comments

I Tested AI Agents for Everyday Work – These Are the Only Ones Worth Using

https://medium.com/@a_siamtanis/i-tested-ai-agents-for-everyday-work-these-are-the-only-ones-wort...
1•mgh2•3m ago•0 comments

'Robots building robots': a 10k unit industrial humanoid robot smart factory

https://www.globaltimes.cn/page/202609/1370528.shtml
1•yogthos•3m ago•0 comments

AWS Says It Can't Restore Some Data from Mideast Facilities Struck by Iran

https://www.wsj.com/world/middle-east/aws-says-it-cant-restore-some-data-from-mideast-facilities-...
2•berkeleyjunk•4m ago•0 comments

Show HN: DeadLock OS – A Linux terminal puzzle game

https://www.crazygames.com/game/deadlock-os-cvg
1•devejesus•4m ago•0 comments

A free website for your business, written by your Google reviews

https://blasa.shop/
1•maherzaidoun•5m ago•0 comments

Transitioning from GUI driven development to AI agent driven development

https://stevechikwiri.substack.com/p/changing-mind-frames-from-building
1•zikani_03•8m ago•0 comments

No Big Deal – is this how AI ends humanity, with a sitcom so bad it bores you?

https://www.theguardian.com/tv-and-radio/2026/sep/15/no-big-deal-review-is-this-how-ai-ends-human...
3•billybuckwheat•8m ago•0 comments

A Vision of a Future Where Machines Fight Wars

https://undark.org/2026/09/11/book-review-lethal-autonomy/
2•EA-3167•9m ago•0 comments

I asked Claude to build AI generator on my own hardware

https://easypeasyvideo.com
1•epv•10m ago•0 comments

The Tournament That Changed Tetris Forever [video]

https://www.youtube.com/watch?v=iYJC4QYmdog
1•CharlesW•11m ago•0 comments

Stag Beetle Is Priced at $90k: But Who Is Buying?

https://www.global-agriculture.com/global-agriculture/stag-beetle-is-priced-at-90000-but-who-is-b...
2•bryanrasmussen•12m ago•1 comments

Pnpm Python Dependencies

https://pnpm.io/python
2•jcbhmr•12m ago•0 comments

Another World: How Did They Make It Look Like a Movie? [video]

https://www.youtube.com/watch?v=ouNVGP7t0g0
1•ibobev•13m ago•0 comments

Voice Acting Arena [Laion]

https://laion.ai/notes/voice-acting-arena/
1•mrfakename•14m ago•0 comments

A.I. Slopware Is Everywhere Now. Nobody Is Using It.

https://www.nytimes.com/2026/09/12/opinion/ai-software-coding-apps.html
4•bookofjoe•18m ago•1 comments

The Frame Loop, Debug Text, and Controller Input

https://www.dgtlgrove.com/p/dg641-the-frame-loop-debug-text-and
1•ibobev•18m ago•0 comments

We Assume DNA Shapes Your Personality, Something Else Does Most of the Work

https://www.sciencealert.com/everyone-assumes-dna-shapes-your-personality-it-turns-out-something-...
1•gmays•18m ago•0 comments

Show HN: HonestSky, a free iOS weather app without ads or subscriptions

https://apps.apple.com/us/app/honestsky-forecast-radar/id6760163384
1•sph130•20m ago•0 comments

For those into GenAI entertainment, I am excited about this hackathon

2•yasmeenfaycurry•21m ago•0 comments

Claude Roulette – chat with strangers while you slop

https://tomjohnell.com/claude-roulette-chat-with-strangers-while-you-slop/
1•tjohnell•23m ago•0 comments

GM's New V8 Trucks Ditch Oil Dipstick for Digital Gauge

https://www.thedrive.com/news/gms-new-v8-trucks-ditch-oil-dipstick-for-digital-gauge
1•cf100clunk•23m ago•0 comments

What if social media isn't hurting kids?

https://www.theverge.com/policy/995704/peter-gray-restoring-childhood-jonathan-haidt
3•pavel_lishin•26m ago•0 comments

Local LLM engine where a tool call cut by the token limit still parses

https://xyntetik.com/runner/truncation-safe-tool-calling/
2•JoakimPalm-Zen•28m ago•0 comments

BAK/SPC

https://bak.spc.org/index.cgi
3•reconnecting•29m ago•0 comments

Aqueduct Water Risk Atlas

https://www.wri.org/applications/aqueduct/water-risk-atlas/#/?advanced=false&basemap=hydro&indica...
4•handfuloflight•30m ago•0 comments

AI's Real Impact in Telecom: takeaways from a recent panel discussion

https://www.windriver.com/blog/AIs-Real-Impact-in-Telecom
2•ohjeez•31m ago•0 comments

A call for a pause – Vivek Srikumar

https://svivek.com/writing/2026-09-13-a-call-for-a-pause.html
5•fooker•32m ago•0 comments

Iroh on Rp2350

https://www.iroh.computer/blog/iroh-on-rp2350
3•karissa•32m ago•0 comments

Fine-Structure Constant

https://en.wikipedia.org/wiki/Fine-structure_constant
4•binyu•36m ago•0 comments