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Bloom's two sigma problem (2020)

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

Comments

trane_project•8mo 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/

Virtual Boy for Nintendo Switch 2/Nintendo Switch

https://www.nintendo.com/us/store/products/virtual-boy-for-nintendo-switch-2-120829/
1•kristianp•4m ago•0 comments

Ada Palmer: Inventing the Renaissance

https://www.250bpm.com/p/ada-palmer-inventing-the-renaissance
1•Ariarule•6m ago•0 comments

OpenClaw Cheat Sheet – Complete Command Reference

https://openclawagent.net/zh/openclaw-cheat-sheet
1•czmilo•6m ago•0 comments

Shadow-code: a novel approach to coding with AI

https://github.com/adifyr/shadow-code
1•hamburglar•8m ago•0 comments

Soldiers will get 'freedom dollars' to spend at the US Army's new dining halls

https://taskandpurpose.com/news/army-bistro-42-ft-hood/
2•OgsyedIE•9m ago•0 comments

US Justice Dept. casts wide net on Netflix's business practices in merger probe

https://www.reuters.com/business/media-telecom/justice-department-casts-wide-net-netflixs-busines...
2•pseudalopex•12m ago•0 comments

A Coder Considers the Waning Days of the Craft (2023)

https://www.newyorker.com/magazine/2023/11/20/a-coder-considers-the-waning-days-of-the-craft
2•jsomers•13m ago•0 comments

20 Claude Code agents, one terminal: a tmux + AppleScript setup

https://pkarnal.com/blog/parallel-ai-agents
1•soham123•14m ago•0 comments

"Cracked live Dragonforce ransomware leak"

https://imgur.com/a/uB5TDjk
1•ONLY_HIM•15m ago•1 comments

Something Small Is Happening

https://myriadperspectives.com/p/something-small-is-happening
2•leecmjohnny•15m ago•1 comments

PepsiCo, Walmart hit with class action over alleged price-fixing

https://www.reuters.com/legal/government/pepsico-walmart-hit-with-class-action-over-alleged-price...
3•CGMthrowaway•20m ago•0 comments

Ask HN: Where does this adversarial prize mechanism break?

1•cartographus•21m ago•1 comments

Show HN: Hosted company memory plugin for OpenClaw

https://github.com/momo-personal-assistant/openclaw-plugin
1•cailynyongyong•23m ago•0 comments

Show HN: Implementing an AI Portfolio Manager. With Learning

https://quantape.substack.com/p/implementing-an-ai-portfolio-manager
1•drisw•30m ago•1 comments

Lessons from Zig

https://www.vinniefalco.com/p/lessons-from-zig
3•greg7mdp•30m ago•0 comments

One Funeral at a Time

https://www.md-a.co/p/one-funeral-at-a-time
1•Kotlopou•32m ago•0 comments

Moats in the Age of AI

https://www.cjroth.com/blog/2026-02-11-moats-in-the-age-of-ai
2•thoughtfulchris•32m ago•0 comments

AI Fatigue: A Software Engineer Warns of Mental Costs to Productivity Gains

https://www.businessinsider.com/ai-fatigue-burnout-software-engineer-essay-siddhant-khare-2026-2
4•birdculture•34m ago•0 comments

The Last Piece of Software

https://www.sawyerhood.com/blog/the-last-piece-of-software
1•sawyerjhood•35m ago•1 comments

Technical Issues of Separation in Function Cells and Value Cells (1988)

https://www.nhplace.com/kent/Papers/Technical-Issues.html
1•todsacerdoti•37m ago•0 comments

Show HN: I debug JONESFORTH with a GDB trace file

1•dharmatech•41m ago•0 comments

Russia blocks Meta's WhatsApp messaging service, FT reports

https://www.reuters.com/technology/russia-blocks-metas-whatsapp-messaging-service-ft-reports-2026...
6•jumpocelot•41m ago•1 comments

Sleeping Dogs Minimap Technical Fundamentals

https://medium.com/@jestey/sleeping-dogs-minimap-technical-fundamentals-43544aefc1e6
4•danbolt•41m ago•0 comments

I built a stock/option analysis platform for the little guys

https://stocknear.com/
1•realstocknear•46m ago•1 comments

Show HN: DeleteTik – Bulk delete TikTok reposts

https://deletetik.com
1•lysddp•47m ago•0 comments

AI Agents Explained in 3 Levels of Difficulty

https://www.kdnuggets.com/ai-agents-explained-in-3-levels-of-difficulty
1•eigenpatch•49m ago•0 comments

0.1% synthetic data is enough to degrade AI models (Nature, 2024)

https://medium.com/ai-advances/model-collapse-when-ai-trains-on-ai-generated-data-2c4baf60a016
2•Aedelon•52m ago•1 comments

Show HN: Lupine.js – A 7kb React-Like Framework with Built-In SSR

https://github.com/uuware/lupine.js
1•lupine-js•52m ago•0 comments

Show HN: Production-Ready NestJS Back End (Multi-Tenancy, Event-Driven)

https://github.com/PkLavc/portfolio
1•PkLavc•54m ago•0 comments

Autopoietic Networks (a few more examples)

https://gbragafibra.github.io/2025/05/27/autopoietic_nets2.html
1•Fibra•56m ago•0 comments