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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/

Everyone loves apprenticeships. So why can't Britain create more of them?

https://www.ft.com/content/1a19a8c6-2472-497a-8f2e-68ace9532804
1•mmarian•2m ago•1 comments

I built an AI memory assistant where I structurally cannot read your data

https://whoszoo.app
1•hansreno•3m ago•0 comments

Show HN: Can I Walk My Dog? Weather-based safety calculator for dog walks

https://rainbow-salmiakki-336e9b.netlify.app/
1•OtmaneBenazzou•6m ago•0 comments

Show HN: Thunderstorm tracker for Mexico England world cup game

https://tlaloc.cloud/
1•mgranados•10m ago•0 comments

Reparaible and open source paper printer

https://www.opentools.studio/
2•bouh•16m ago•0 comments

Dungeon Proof Crawler: learn how to write proofs with RPG

https://dhilst.github.io/algae/game/index.html
4•SchwKatze•18m ago•1 comments

Why New Jersey's balcony solar bill is a huge deal for renters

https://www.cnn.com/climate/new-jersey-balcony-solar-renters
2•breve•20m ago•1 comments

Y Combinator.singles

https://www.ycombinator.singles/
1•nadermx•21m ago•0 comments

Ask HN: Are you guys happy with existing social networkin apps?

5•julienreszka•22m ago•4 comments

Pint in England

https://dispatch-media.com/the-best-pint-in-england/
2•gripfx•23m ago•0 comments

The new Teddy Roosevelt library is a gorgeous extension of the prairie

https://www.fastcompany.com/91568422/theodore-roosevelt-presidential-library
2•eatonphil•23m ago•0 comments

Hollywood's spent 25 years chasing the wrong lessons from The Lord of the Rings

https://www.polygon.com/lord-of-the-rings-25-years-fantasy/
3•HelloUsername•26m ago•0 comments

How to Dox Anyone

https://madattheinternet.substack.com/p/how-to-dox-anyone
6•majorchord•28m ago•1 comments

Show HN: clip.video - Turn podcasts and long videos into short vertical clips

https://clip.video/
1•nadermx•30m ago•0 comments

Organic Maps open source dispute

https://isitreallyfoss.com/projects/organic-maps/
2•maxloh•31m ago•0 comments

What Should We Optimize Away?

https://www.autodidacts.io/holistic-optimization/
1•Curiositry•33m ago•0 comments

Dependencies should be fetched directly from VCS

https://www.arp242.net/deps-vcs.html
3•mrngm•35m ago•0 comments

OpenAI is fast-tracking its own "AI Agent Phone" for 2027 to challenge iPhone

https://old.reddit.com/r/OpenAI/comments/1unbqyd/openai_is_fasttracking_its_own_ai_agent_phone_for/
4•rmason•37m ago•1 comments

Therac-25

https://en.wikipedia.org/wiki/Therac-25
3•thunderbong•38m ago•0 comments

Mercy Otis Warren

https://en.wikipedia.org/wiki/Mercy_Otis_Warren
1•vinnyglennon•39m ago•0 comments

Show HN: Sidenote – comment on your rendered blog, an LLM writes the Git diff

https://github.com/bharadwaj-pendyala/sidenote
1•bharadwajp•40m ago•0 comments

Surveillance Companionship Entertainment: Intelligent Machines Ancient History

https://thereader.mitpress.mit.edu/the-ancient-history-of-intelligent-machines/
2•andsoitis•40m ago•0 comments

Scaling Laws, Honestly

https://www.completeskeptic.com/p/scaling-laws-honestly
1•dreamingincode•46m ago•0 comments

Show HN: A bedside camera detects REM sleep and agrees with a clinical EEG

https://lucidcode.com/2026/06/20/inspec-with-cgx-patch-clinical-eeg-sleep-stage-classification/
2•MichaelCoder•52m ago•0 comments

Show HN: Osint tool that finds exposed files on domains

https://search.cerast-intelligence.com/
2•PatchRequest•54m ago•0 comments

Zero-copy in Go: sendfile, splice, and the cost of io.Copy

https://segflow.github.io/post/zero-copy-sendfile-splice/
1•mrngm•54m ago•0 comments

Show HN: Open-source guided code reviews

https://twitter.com/plannotator/status/2073845811847512372
2•ramoz•55m ago•0 comments

ARRR: Pirate MMO vibecoded by its players

https://www.arrr.fun
2•m0dE•56m ago•1 comments

RePost API Tester Extension

https://chromewebstore.google.com/detail/repost-api-tester/eipmeckflplenlbnlhbpmjojahephhkp
1•info-chirila•57m ago•0 comments

3D-print your own modular eyeglasses frames

https://eiga.works/design/hitomi-frames/
3•thinkalone•59m ago•0 comments