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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/

The Anger Isn't at the Tool

https://mamonas.dev/posts/the-anger-isnt-at-the-tool/
1•konmam•1m ago•0 comments

Small PRs, big speedups: The Ruby performance work you almost missed

https://mensfeld.pl/2026/06/ruby-performance-roundup/
1•doppp•3m ago•0 comments

Crypto's True Believers Demand to Be Taken Seriously

https://www.vanityfair.com/news/story/cryptos-true-believers
1•1vuio0pswjnm7•7m ago•0 comments

Free Online Survival Game – Arcade Style with Sonar Ping

1•desinxstudio•19m ago•0 comments

Jürgen Schmidhuber: World Models, RL and Year That Changed AI

https://www.the-information-bottleneck.com/jurgen-schmidhuber-world-models-rl-and-the-year-that-c...
1•__patchbit__•23m ago•0 comments

Making Claude a Chemist

https://www.anthropic.com/research/making-claude-a-chemist
1•zdkaster•23m ago•0 comments

Sites in Codex

https://developers.openai.com/codex/sites
1•ttul•25m ago•0 comments

Show HN: Nanocode-CLI – A lightweight terminal-based AI coding assistant

https://github.com/hit9/nanocode
1•hit9•29m ago•0 comments

Dots.tts: 2B-parameter continuous, end-to-end autoregressive TTS system

https://rednote-hilab.github.io/dots.tts-demo/
1•HellsMaddy•30m ago•0 comments

Ask HN: Does robotics capabilities research accelerate AGI timelines?

2•themasterchief•32m ago•1 comments

Undergoing maintenance for terminal.pink, I'm moving to a new home

https://blog.terminal.pink/posts/byte-vi.html
1•blmayer•35m ago•0 comments

S&P 500 rejects SpaceX, also blocking entry for OpenAI and Anthropic

https://arstechnica.com/tech-policy/2026/06/sp-500-blocks-fast-spacex-entry-wont-waive-rule-for-u...
15•maltalex•45m ago•1 comments

OpenAlex: All the Research, Connected and Open

https://openalex.org/
1•the-mitr•47m ago•0 comments

How to Build an AI Agent for Slack with Chat SDK and AI SDK

https://vercel.com/kb/guide/how-to-build-an-ai-agent-for-slack-with-chat-sdk-and-ai-sdk
1•flashbrew•48m ago•0 comments

An announcement from the Steering Council regarding the JIT project

https://discuss.python.org/t/an-announcement-from-the-steering-council-regarding-the-jit-project/...
4•riffraff•53m ago•0 comments

Qtile macOS-Style Screenshot Utility

https://github.com/cesarleaz/dot-screenshot/blob/main/README.md
2•gabyword•56m ago•0 comments

Top AR and XR Development Companies in India 2026

https://steff359075.substack.com/p/top-ar-and-xr-development-companies
1•gamepro•59m ago•0 comments

Google is quietly laying off staff in its cloud division

https://www.businessinsider.com/google-clouds-quiet-layoffs-hit-cybersecurity-teams-2026-6
10•yogthos•1h ago•0 comments

Meta weighs big equity raising after blockbuster Google deal

https://www.ft.com/content/e6df645d-1709-4a77-b15d-aa43a0209efd
3•JumpCrisscross•1h ago•0 comments

Show HN: What does YC Paxel do with your source code?

https://github.com/codesoda/paxel/tree/main/rootfs/rails
2•codesoda•1h ago•2 comments

Loupe: Revealing iOS Fingerprinting Signals

https://github.com/mysk-research/loupe
2•Hansenq•1h ago•0 comments

Linus Torvalds on AI

https://thenewstack.io/torvalds-ai-programming-productivity/
4•nreece•1h ago•0 comments

Error that we had to ignore

https://pvs-studio.com/en/blog/posts/js/1381/
1•thunderbong•1h ago•0 comments

The Ethical Dilemmas of AI

https://www.ft.com/content/d2c90246-11d7-4169-ac35-988de7fdb2af
2•1vuio0pswjnm7•1h ago•1 comments

AI slop has infiltrated the homes of the elderly

https://old.reddit.com/r/TrueOffMyChest/comments/1ty2veb/ai_slop_has_infiltrated_the_homes_of_the...
2•notRobot•1h ago•0 comments

Amazon Vinyl, a TypeScript streaming engine for HTML5 media

https://amazonmusic.github.io/vinyl/
1•nbilyk•1h ago•0 comments

Pre-Modern Armies for Worldbuilders, Part I: Why They Fight

https://acoup.blog/2026/06/05/collections-pre-modern-armies-for-worldbuilders-part-i-why-they-fight/
21•gostsamo•1h ago•1 comments

Claude-tinderbox: Search your Claude.ai conversation history locally via MCP

https://github.com/luckyrmp/tinderbox-archive
2•songwavepst•1h ago•0 comments

Bitcoin's star fades, as investors flock to lustre of AI and megacap IPOs

https://www.reuters.com/business/finance/bitcoins-star-fades-investors-flock-lustre-ai-megacap-ip...
4•1vuio0pswjnm7•1h ago•0 comments

Central Ohio Becomes Hub for Tech and Manufacturing

https://www.nytimes.com/2026/06/05/business/ohio-tech-manufacturing-hub.html
2•saikatsg•1h ago•0 comments