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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/

Advent of Computing Episode 194 – SpeedCoding Your Way to Software

https://adventofcomputing.libsyn.com/episode-194-speedcoding-your-way-to-software
1•matt_d•1m ago•0 comments

Dodo – A Community Fork of Deno

https://github.com/are-we-dodo-yet/dodo
1•lsh0•1m ago•0 comments

RetroWEB 2.0: a forwarding proxy for old browsers

https://bjornsblog.nl/retroweb-now-works-as-a-real-web-proxy/
1•O1111OOO•3m ago•0 comments

The Psychology of Letting Go

https://www.autodidacts.io/the-psychology-of-letting-go/
1•Curiositry•7m ago•0 comments

Staff at the US center for AI safety are reporting to the White House

https://apnews.com/article/ai-safety-trump-white-house-d3318eb2cf011df53e9ddb3e03d25f13
1•sshah03•9m ago•0 comments

Jensen Huang Betrayed Nvidia, Not Just His Family

https://daringfireball.net/linked/2026/11/08/huang-betrayed-nvidia
2•JumpCrisscross•10m ago•1 comments

Nvidia launches investigation into CEO's alleged relationship with Chinese spy

https://www.npr.org/2026/11/08/nx-s1-6034036/nvidia-launches-investigation-into-ceos-alleged-rela...
1•berkeleyjunk•10m ago•0 comments

Replacing corporations with openly operated ERP

https://gradienterp.cloud/
1•mxfactorial•12m ago•0 comments

Artificial Analysis Decision Index v2

https://artificialanalysis.ai/articles/decision-index-v2
1•hjun1052•21m ago•0 comments

Parse_number() as a SQLite extension: C vs. Rust

https://simonwillison.net/2026/Nov/8/sqlite-parse-number-c-vs-rust/
1•sshah03•24m ago•0 comments

Ian Murdock – And we learn about Debian

https://larrymurdock.substack.com/p/ian-murdock-72d
3•thesuperbigfrog•26m ago•0 comments

Show HN: Airlock – Policy-as-code for fleets of AI coding agents

https://airlock.lunareng.com/docs
1•lovetocode•29m ago•0 comments

Show HN: Replay your Claude Code logs to count parallel session collisions

https://github.com/dooly6276/claude-bulkhead
2•dooly6276•33m ago•0 comments

Learning Abstractions: The Next Frontier for AI

https://twitter.com/jmugan/status/2119593410268999700
1•jmugan•37m ago•0 comments

Show HN: Midgarth Quest. Browser-Playable Mmorpg Written by AI

https://midgarth.quest/
2•anacrolix•38m ago•0 comments

Don't make me a meat proxy

https://uptownhr.com/blog/dont-make-me-a-meat-proxy/
1•uptownhr•38m ago•0 comments

CCTV captures streets shaking as 5.7-magnitude earthquake hits Japan

https://www.aljazeera.com/video/newsfeed/2026/11/8/cctv-captures-streets-shaking-as-5-7-magnitude...
2•mikhael•44m ago•0 comments

China's Top Spy Agency Recruited Woman Who Targeted Jensen Huang

https://www.nytimes.com/2026/11/06/us/politics/chinese-spy-agency-nvidia-jensen-huang.html
3•bookofjoe•44m ago•1 comments

Vibecoding in Plato's Cave (AI, Music Tech, and Star Trek) [video]

https://www.youtube.com/watch?v=4NExTWq_wvk
2•prollings•45m ago•0 comments

LaFranceenDébat: An open-source platform for peaceful,source-based public debate

https://lafranceendebat.fr/
1•wbelbeche•46m ago•0 comments

Starlink is in 223 countries, but in India its IP addresses sit almost unused

https://ipinfo.io/blog/starlink-223-countries
3•emot•46m ago•0 comments

Blacksmith.sh: security incident affecting CI job logs

https://status.blacksmith.sh/cmw5fokyu013w13mrtneqjv5l
2•tjwds•47m ago•0 comments

The Commanding Heights: Where AI will create wealth [pdf]

https://commanding-heights.com/commanding-heights.pdf
2•CharlesW•47m ago•0 comments

Superscore Remix – highly accurate character replacements and lip sync

https://www.superscore.ai/gallery/94a6697b2c1442fcb20b08c473dbe0fd534dca6ec0e847878275b5d5551fba54
1•chicken_little_•51m ago•0 comments

Open Source AI Research Collaboration Platform

https://station-house.net/
1•stationhouse•1h ago•1 comments

I am building Threadz. Human first AI writing app

2•shoebilyas_hanz•1h ago•1 comments

Show HN: TabVault – Export Chrome Tab Groups to Obsidian as Markdown

https://github.com/aryamantepal/tabvault
1•aryamantepal•1h ago•0 comments

Tinker – a lightweight WoW addon manager

https://tinker.lukeed.com/
1•lukeed•1h ago•1 comments

Ask HN: What do you use to get the latest technical AI news?

1•tini-giang•1h ago•1 comments

Open Source Web Operating System Terminal Velocity

https://republicka.life/terminal-velocity.html
1•BardPresident•1h ago•0 comments