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Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•11mo ago

Comments

trane_project•11mo 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/

mine: A complete, no-frills IDE for Coalton and Common Lisp

https://twitter.com/stylewarning/status/2047736414704435535
2•tosh•3m ago•0 comments

Ubuntu 26.04 Released

https://discourse.ubuntu.com/t/ubuntu-26-04-resolute-raccoon-lts-released/80833
1•synergy20•3m ago•1 comments

AI Agent Designs a RISC-V CPU Core from Scratch

https://spectrum.ieee.org/ai-chip-design
1•Teever•5m ago•0 comments

APL\? (1990)

https://dl.acm.org/doi/epdf/10.1145/97811.97845
1•tosh•7m ago•0 comments

MiniZinc, constraint modelling language solve discrete optimisation problems

https://www.minizinc.org
2•Alifatisk•9m ago•0 comments

FluxBB Built with Rust

https://github.com/skorotkiewicz/fluxbb-rs
2•modinfo•12m ago•0 comments

'Startup Cowboys' Are Making This Texas Town the New Tech Hotspot

https://www.wsj.com/business/entrepreneurship/lockhart-texas-tech-hub-fd1bf380
1•malshe•13m ago•1 comments

Collaborative Autoresearch for Any Repo

https://community.computer/
1•aiw1nt3rs•13m ago•0 comments

Before Apple Music, There Was MapleMusic–Canada's Forgotten Pioneer

https://thewalrus.ca/before-apple-music-there-was-maplemusic/
1•janandonly•13m ago•0 comments

QR Lume – a privacy‑first iOS tool for inspecting QR codes safely

https://apps.apple.com/us/app/qrlume/id6762032298
1•briwandt•14m ago•2 comments

Wsl9x: Windows 9x Subsystem for Linux

https://codeberg.org/hails/wsl9x
1•birdculture•15m ago•1 comments

Mercedes-Benz and Liquid AI Partner to Scale Embedded In-Car Intelligence

https://www.businesswire.com/news/home/20260423009970/en/Mercedes-Benz-and-Liquid-AI-Partner-to-S...
1•mnewme•16m ago•0 comments

Multiview Stereo Projection [video]

https://www.youtube.com/watch?v=YbxsYhTjYFI
2•Saig6•21m ago•0 comments

Google investing up to $40B in Anthropic

https://www.wsj.com/finance/investing/google-expands-anthropic-investment-with-40-billion-commitm...
3•chang1•22m ago•0 comments

The Nintendo Switch Switch (2019)

https://blog.cynthia.re/post/nintendo-switch-ethernet-switch
1•zdw•23m ago•0 comments

Benchmarking OpenAI's Privacy Filter

https://www.tonic.ai/blog/benchmarking-openai-privacy-filter-pii-detection
2•akamor•24m ago•0 comments

SFO Quiet Airport (2025)

https://viewfromthewing.com/san-francisco-airport-removed-90-minutes-of-daily-noise-travelers-say...
15•CaliforniaKarl•26m ago•4 comments

Multiservice Impact for Azure Workloads in East US

https://azure.status.microsoft/en-us/status
2•tapoxi•28m ago•1 comments

QLMarkdown: macOS Quick Look extension for viewing Markdown files

https://github.com/sbarex/QLMarkdown
1•janandonly•28m ago•0 comments

Voice analysis pipeline that detects emotional incongruence

https://app.myyangu.com/
1•xthemadgenius•29m ago•0 comments

Ivanpah Solar Power Facility

https://en.wikipedia.org/wiki/Ivanpah_Solar_Power_Facility
1•simonebrunozzi•29m ago•0 comments

Video recordings of software engineering pioneers, SD&m Bonn 2001

https://archive.org/details/sdm_software_ionieers
2•kkroesch•30m ago•3 comments

Mine, a Coalton and Common Lisp IDE

https://coalton-lang.github.io/20260424-mine/
5•Jach•32m ago•0 comments

OpenAI releases GPT-5.5 and GPT-5.5 Pro in the API

https://developers.openai.com/api/docs/changelog
14•arabicalories•33m ago•3 comments

Benchmarking How Postgres Scales

https://www.dbos.dev/blog/benchmarking-workflow-execution-scalability-on-postgres
2•KraftyOne•37m ago•0 comments

It's OK To Be Scared (Don't be in a rush to get screwed)

https://chillphysicsenjoyer.substack.com/p/its-ok-to-be-scared
2•crescit_eundo•38m ago•0 comments

Ask HN: How would you improve this CLI tool for finding terminal commands?

https://github.com/stvkoch/Command-Finder
2•stvkoch•41m ago•0 comments

Ubuntu 26.04 LTS

https://documentation.ubuntu.com/release-notes/26.04/changes-since-previous-interim/
4•maxloh•42m ago•0 comments

LLM research on Hacker News is drying up

https://dylancastillo.co/til/llm-research-on-hacker-news-is-dying.html
3•dcastm•44m ago•0 comments

What happened to Omegle? rise and fall of internet's favorite stranger danger

https://mashable.com/article/what-happened-to-omegle
1•rolph•45m ago•0 comments