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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/

RubyLLM 2.1

https://rubyllm.com/whats-new-in-2-1/
1•rcymerys•1m ago•0 comments

GitLab Is Down

https://status.gitlab.com/pages/incident/5b36dc6502d06804c08349f7/6ad059d62dc48705ab3da0cd
1•jtwaleson•2m ago•1 comments

Show HN: Tether – A native macOS client for KDE Connect

https://github.com/subhashhhhhh/Tether
1•subhashhh•3m ago•0 comments

Anthropic's Quarterly Revenue Jumped 45% to Nearly $17B

https://www.wsj.com/tech/ai/anthropics-quarterly-revenue-jumped-45-to-nearly-17-billion-1c7e28b8
1•ea016•3m ago•0 comments

Claude, don't touch my lump (OR: the secret key to permanent happines)

https://www.experimental-history.com/p/claude-dont-touch-my-lump
1•dverlaeckt80•7m ago•0 comments

Show HN: KIRA–All-in-one local desktop media suite built to empower free speech

https://medium.com/@mdrstudiogroup/giving-the-power-of-an-entire-media-company-to-any-individual-...
1•MDRStudio•12m ago•0 comments

We Still Use Paper

https://humanpro.co/articles/we-still-use-paper/
1•gx•13m ago•0 comments

Master Foo and the Ten Thousand Lines

http://catb.org/esr/writings/taoup/html/ten-thousand.html
1•ankitg12•13m ago•0 comments

Bloomberg Doubles Down on Conversational AI

https://www.wsj.com/cio-journal/bloomberg-doubles-down-on-conversational-ai-55f47c94
1•thm•15m ago•0 comments

Show HN: Timestamp Camera Online

https://timestamponline.com/
1•artiomartiom•15m ago•0 comments

The Accessible Components Library

https://tetralogical.com/blog/2026/10/14/accessible-components-library/
1•robin_reala•17m ago•0 comments

Anthropic flags revenue surge to investors ahead of stock market debut

https://www.bbc.co.uk/news/articles/cqzjx448vxkgo
1•edward•19m ago•0 comments

aidlc: Adaptive workflow steering rules for AI coding agents

https://github.com/awslabs/aidlc-workflows
1•pramodbiligiri•20m ago•0 comments

Teachers Using AI Say It Frees Up Time for What Matters Most

https://news.gallup.com/poll/715364/teachers-using-say-frees-time-matters-mostost.aspx
2•giuliomagnifico•21m ago•0 comments

How long will humans be needed for translation?

https://www.bbc.co.uk/news/articles/c1wxdjx27ypo
1•edward•22m ago•1 comments

AI Companies Play Cat-and-Mouse with Secret-Stealing Spies

https://www.wsj.com/tech/ai/ai-companies-play-cat-and-mouse-with-secret-stealing-spies-160eec6b
2•dsr12•22m ago•0 comments

The Commodore 64 hardware simulator: break chips and pins, see the results

https://github.com/antirez/c64-hw-simulator
1•antirez•23m ago•0 comments

Building a post-quantum certificate authority with Merkle Tree Certificates

https://blog.cloudflare.com/pq-ca-with-mtcs/
2•nonmaskable•23m ago•0 comments

Revisiting rust and Claude for personal tools

https://blog.korny.info/2026/08/01/revisiting-personal-tools-in-rust-and-claude
1•ankitg12•23m ago•0 comments

How to be more ambitious: A tutorial for humans with models

https://felixrieseberg.com/how-to-be-more-ambitious-a-tutorial-for-humans-with-models/
1•pretext•24m ago•0 comments

A perfect storm: how the super El Niño is devastating the fishing industry

https://www.theguardian.com/news/2026/oct/15/a-perfect-storm-how-the-super-el-nino-is-devastating...
1•rdmuser•27m ago•0 comments

Fridge hack costing millions and sparking fires stemmed from poor security

https://arstechnica.com/security/2026/10/fridge-hack-costing-millions-and-sparking-fires-stemmed-...
1•joozio•27m ago•0 comments

Artificial Analysis AA-Robotics v0.1 Robotics Benchmark for Frontier Models

https://artificialanalysis.ai/articles/aa-robotics
1•willmarch•29m ago•0 comments

Linq.es – Go-Powered Link-in-Bio, URL Shortener, and VCard with an MCP Server

https://linq.es/
1•giulianobr•31m ago•0 comments

IdeaLens: Detecting AI Ideas in Long-Form Writing

https://arxiv.org/abs/2610.06778
1•ersinesen•32m ago•0 comments

Show HN: Thinkbeside – AI Sidebar for GPT, Claude and Gemini

https://chromewebstore.google.com/detail/thinkbeside-ai-sidebar-fo/plcbbhlakibeddilmfjnkdpfcjdcliip
1•punit2502•32m ago•0 comments

Metal alloys that unexpectedly resist extreme cold, staying tough at -253°C

https://www.ox.ac.uk/news/2026-10-14-new-study-reveals-metal-alloys-that-unexpectedly-resist-extr...
2•frostbyte7•32m ago•0 comments

The Little Prince

https://littleprince.dev/
1•matt89•34m ago•0 comments

Eight states sue OpenAI, saying ChatGPT isn't safe for kids

https://www.theverge.com/ai-artificial-intelligence/1011500/openai-state-lawsuits-chatgpt-safety
1•SpiralLibrarium•40m ago•0 comments

True Food – The future of food is true

https://truefood.net/
3•osivertsson•43m ago•0 comments