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Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•9mo ago

Comments

trane_project•9mo 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/

AI Tools: Slowing Down Developers Instead of Speeding Them Up – Here's Why

https://medium.com/@riturajpokhriyal/why-ai-coding-tools-are-making-you-slower-and-what-actually-...
1•birdculture•21s ago•0 comments

Z-Image is an AI-powered image generator

https://z-image.fun/
1•nikiki•4m ago•1 comments

Dystopia: W3C (West World WebKit Corporation) in 2024

https://svgees.us/blog/dystopia.html
1•lioeters•5m ago•0 comments

Back to FreeBSD: Part 1

https://hypha.pub/back-to-freebsd-part-1
1•enz•9m ago•0 comments

Node.js in the Browser

https://github.com/userland-run/nano
2•dietz•10m ago•1 comments

What's the best way to learn a new language?

https://www.bbc.com/future/article/20260220-whats-the-best-way-to-learn-a-new-language
2•1659447091•11m ago•0 comments

Show HN: ScreenCommander – Let LLM Agents control your desktop via CLI

https://github.com/0xSMW/screencommander
1•aethelyon•16m ago•1 comments

Debian's Master Is Deleting Criticism of SystemD and Other Things

https://techrights.org/n/2026/02/21/Debian_s_Master_is_Deleting_Criticism_of_SystemD_and_Other_Th...
1•amcclure•18m ago•0 comments

Show HN: This week I learned 100 English word with alarm clock

https://vocabalarm.com/
1•tien198722•20m ago•0 comments

Show HN: Atlassian-CLI, unified CLI tool for Jira, Confluence, Bitbucket and JSM

https://github.com/omar16100/atlassian-cli
1•omar16100•23m ago•0 comments

Louis de Broglie – Nobel Lecture [pdf]

https://www.nobelprize.org/uploads/2016/04/broglie-lecture.pdf
1•ColinWright•23m ago•0 comments

Show HN: Clawdrop – how do you use OpenClaw?

https://clawdrop.org/
1•dhruvkar•25m ago•0 comments

Show HN: Secret Sanitizer – auto-masks secrets when you paste into AI chats

https://github.com/souvikghosh957/secret-sanitizer-extension
1•souvikghosh957•25m ago•0 comments

30 Years of Decompilation and the Unsolved Structuring Problem: Part 1 (2024)

https://mahaloz.re/dec-history-pt1
1•userbinator•27m ago•0 comments

Reliving Late Nights Watching MTV with ErsatzTV

https://rafichaudhury.com/site/blog/ersatztv
1•rchaud•34m ago•0 comments

The Pleasures and Pains of Coffee (1830)

https://quod.lib.umich.edu/m/mqrarchive/act2080.0035.002/10
1•jxmorris12•35m ago•0 comments

Disagree and commit is not disagree and complain

https://dougrathbone.com/blog/2026/02/22/disagree-and-commit-is-not-disagree-and-complain
1•wiredone•36m ago•0 comments

Show HN: Microterm runs Linux VM in any browser tab via WASM, RISCV64 emulation

https://microterm.dev/
1•Xlab•38m ago•0 comments

Show HN: Kickstart – Set up a Claude Code project in 3seconds from clipboard

https://github.com/m4suisui/kickstart
1•m4sui•41m ago•0 comments

Why SaaS companies are scared Takes ODE 15 mins to do what takes them 6 months

https://www.llewellynsystems.com
1•LLSODE•42m ago•0 comments

Claude Opus 4.6 Fast Mode: 2.5x Faster, 6x More Expensive

https://www.marc0.dev/en/blog/claude-opus-4-6-fast-mode-pricing-6x-cost-breakdown-1770499078106
1•mefengl•49m ago•0 comments

Built an open-source tool that lets you deploy containers to your VPS via MCP

https://github.com/ddalcu/mcp-deploy
1•ddalcu•50m ago•1 comments

CDC: Why Decompression Is Worth the Complexity

https://wael.nasreddine.com/nixos/cdc-why-decompression-worth-co
2•kalbasit•56m ago•1 comments

Show HN: Brood, a reference-first AI image editor for macOS

https://github.com/kevinshowkat/brood
1•latentcraft•57m ago•1 comments

Amazon's cloud unit hit by outage involving AI tools in December

https://www.reuters.com/business/retail-consumer/amazons-cloud-unit-hit-by-least-two-outages-invo...
1•1vuio0pswjnm7•59m ago•0 comments

Show HN: Clawscan – Open-source security scanner for OpenClaw AI agents

https://github.com/osmankidwai-bot/clawscan
1•clawscan•1h ago•0 comments

A chat-style site for Hacker News trends

https://github.com/1997roylee/yc-chat
1•1997roylee•1h ago•1 comments

Forgelink Is Here

1•frostfrazer•1h ago•0 comments

Show HN: HashTrade – Open-source LLM trading agent with episodic memory

https://github.com/mertozbas/hashtrade
1•mertozbas•1h ago•1 comments

I just started a Substack where I talk about building Midrop

https://klaudjo.substack.com/subscribe
1•Klaudjo_shkurta•1h ago•0 comments