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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/

External network blocks affecting access to Railway

https://status.railway.com/incident/QBCLHG1V
1•rajamaka•31s ago•0 comments

Data center-related ballot measures, 2026

https://ballotpedia.org/Data_center-related_ballot_measures,_2026
1•anigbrowl•1m ago•0 comments

Vi Turns 50: The True History of vi

https://lunduke.substack.com/p/the-true-history-of-vi
2•so-cal-schemer•4m ago•0 comments

Intersection of Three Circles

https://late-nine.itch.io/intersection-of-three-circles
1•BoppreH•6m ago•0 comments

Show HN: A calm app for car shopping (MIT)

https://lowkey.autos
1•ndgold•9m ago•0 comments

TikTok Cinema: Inside AI Microdramas

https://www.lwlies.com/long-read/tiktok-cinema-inside-ai-microdramas
2•rdmuser•11m ago•0 comments

Introducing Images 2.6

https://openai.com/index/introducing-images-2-6/
2•davidbarker•11m ago•0 comments

Local privilege escalation vulnerabilities in Linux

https://openai.com/index/a-thousand-fewer-paths-to-root/
3•dangelosaurus•14m ago•1 comments

The psychology of separating church and state Essays

https://aeon.co/essays/the-psychology-of-separating-church-and-state
1•rbanffy•14m ago•0 comments

Gist of Go: Concurrency

https://antonz.org/go-concurrency/
1•rbanffy•15m ago•0 comments

Yassamin Ansari: Top of the Democratic agenda on day 1 pause on advanced AI dev

https://twitter.com/RepYassAnsari/status/2118054336077127797
1•donsupreme•16m ago•2 comments

Dagger for Entire

https://dagger.io/blog/dagger-for-entire/
1•shykes•17m ago•0 comments

French bank Credit Mutuel Arkea counting losses from cyberattack

https://www.reuters.com/technology/french-bank-credit-mutuel-arkea-hit-by-cyberattack-2026-11-04/
3•gvieri•22m ago•0 comments

AI poisoning: are we using AI, or is AI using us?

https://blog.sparkcan.com/posts/ai-poisoning/
4•bstefanovic•23m ago•0 comments

Edward Hopper's Iconic Painting, "Nighthawks

https://lithub.com/the-story-behind-edward-hoppers-iconic-painting-nighthawks/
1•prismatic•24m ago•0 comments

Fedora 45 is finally finished and fit

https://www.theregister.com/os-platforms/2026/11/04/fedora-45-is-finally-finished-and-fit/5307631
1•rbanffy•25m ago•0 comments

Pcbang.io

https://pcbang.io/
2•zergrush•27m ago•0 comments

Markdown viewer that supports images and latex folmulas

https://github.com/vincenzoaurelio/Platessa
2•vincenzoaurelio•34m ago•0 comments

Why Data Centres Will Change the World and Bankrupt Their Builders [video]

https://www.youtube.com/watch?v=GY5YyPLfqp0
1•dcl•34m ago•1 comments

Nvidia store pulls RTX 5080 following RTX 5090 removal, prices rise to 2.2X MSRP

https://www.tomshardware.com/pc-components/gpus/nvidia-store-quietly-pulls-the-rtx-5080-following...
1•akyuu•35m ago•0 comments

Kashmir's vanishing potato pits: generations of knowledge may be buried forever

https://www.theguardian.com/environment/2026/nov/04/kashmir-potato-pits-vanishing-indigenous-know...
2•bookofjoe•35m ago•0 comments

Puremail and Pure Writer for Haiku

https://pureemail.net/haiku.html
2•rguiscard•36m ago•0 comments

GarlicSignage – open-source Digital Signage Software

https://github.com/garlic-signage
3•thunderbong•41m ago•0 comments

AI triggers PCB shortage for PC makers as order books full until 2030, costs 12x

https://www.tomshardware.com/pc-components/ai-demand-triggers-massive-pcb-shortage-for-pc-makers-...
4•akyuu•42m ago•0 comments

Background subagents in Claude Code now use less of your usage limit

https://twitter.com/ClaudeDevs/status/2118063143167693011
2•mfiguiere•44m ago•0 comments

Raye Mihretab project ice cream

https://docs.google.com/document/d/1N3FX6ER-BMV7mYje-iX4u2Ra6FN9oVwPjxBRRQPNCIk/edit?userstoinvit...
2•bahgihayle•45m ago•0 comments

Successful People (2013)

https://blog.samaltman.com/successful-people
9•epestr•46m ago•6 comments

YouTuber discovers aircraft noise trick that can geolocate videos to within 100M

https://www.techradar.com/computing/cyber-security/youtuber-discovers-aircraft-noise-trick-that-c...
5•pain_perdu•48m ago•0 comments

You Can Build a Database, and how I'm doing it

https://charlesfonseca.substack.com/p/you-can-build-a-database-heres-how
2•barddoo•48m ago•0 comments

GMLK – An open-source Roblox Luau module loader and utility library

https://github.com/Faruk-Icen/GMLK
1•FarukIcen•50m ago•0 comments