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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/

NATO allies foil Russian subsea cable sabotage plot

https://www.reuters.com/world/europe/nato-allies-foil-russian-subsea-cable-sabotage-plot-2026-09-10/
1•aa_is_op•29s ago•0 comments

A Guide to Sankt Pauli, Hamburg

https://alexgettinglost.com/2022/10/26/guide-to-sankt-pauli-hamburg/
1•jruohonen•1m ago•0 comments

New Apple Watches have ears

https://leancrew.com/all-this/2026/09/new-apple-watches-have-ears/
1•ingve•3m ago•0 comments

Sharpness Is Power

https://baku89.com/sharpness-is-power
1•prathyvsh•4m ago•0 comments

OpenAI: Defense Factory

https://openai.com/the-defense-factory/
1•tosh•6m ago•1 comments

4K Analog Video Feedback Fractal Device Complete

https://www.youtube.com/watch?v=R1z3oM6h8uM
1•o4c•6m ago•0 comments

Curated List of Osint Tools

https://osintech.substack.com/p/osintechs-timeline-171-16072026
2•GetSMS•17m ago•0 comments

If PHP Were British

https://aloneonahill.com/blog/if-php-were-british/
1•soltanov•17m ago•0 comments

Kelivo: A Flutter LLM Chat Client. Support Mobile and Desktop

https://github.com/Chevey339/kelivo
2•xbmcuser•18m ago•0 comments

GPS and the Limits of Control

https://www.lawfaremedia.org/article/gps-and-the-limits-of-control
1•heisenbit•18m ago•0 comments

OpenClaw Dashboards: Personal Use, Team Workflows, and Building Your Own

https://openclaw.ai/podcast/episode-10
1•tosh•21m ago•0 comments

Show HN: Sindlish, a programming language for Sindhi speakers

https://sindlish.vercel.app/
1•amanatalipanhwe•21m ago•0 comments

Experience Shapes Extraordinary Beliefs

https://www.cell.com/trends/cognitive-sciences/fulltext/S1364-6613(25)00310-9
1•shymaple•21m ago•0 comments

In this era of AI, it is important to remember what it is like to be a child

https://mathstodon.xyz/@tao/117244104044239500
1•o4c•22m ago•0 comments

Ultimate dev environment for Playwright NixOS VM tests

https://blog.tiserbox.com/posts/2026-09-09-ultimate-dev-environment-for-playwright-nix-os-vm-test...
1•ibizaman•23m ago•0 comments

The first drink-driving conviction may have happened in London - electric

https://www.ianvisits.co.uk/articles/the-worlds-first-drink-driving-conviction-may-have-happened-...
1•beardyw•26m ago•0 comments

The Autistici/Inventati collective is shutting down

https://www.inventati.org/campaign/press
2•BaudouinVH•27m ago•1 comments

Maths Sheep Play Sheep

https://davidkbutler.xyz/2026/08/23/maths-sheep-play-sheep/
1•o4c•27m ago•1 comments

Anthropic Researcher Quits over 'Out-of-Control' AI Fears

https://www.wsj.com/tech/ai/anthropic-researcher-quits-over-out-of-control-ai-fears-707b7628
2•ramon156•30m ago•0 comments

Nvidia Personal-AI-Router

https://github.com/NVIDIA/Personal-AI-Router
1•BerislavLopac•32m ago•0 comments

DeepSeek v4 Pro discontinuation (email)

1•lionkor•33m ago•0 comments

IKEA made a mod for Skyrim [video]

https://www.youtube.com/watch?v=iZODN0QUgjI
3•kegenaar•34m ago•0 comments

Ex-Anthropic researcher Jacob Coxon says AI development poses risk to humans

https://apnews.com/article/anthropic-ai-safety-jacob-coxon-2ed549e07f2f941600a135070487d83d
1•olalonde•34m ago•0 comments

Practical Agentic RAG patterns implemented with LangGraph

https://github.com/ChandulaSenevirathna/Agentic_RAG
4•Delta000•35m ago•7 comments

Multiprobe – Paris Traceroute and path analytics in pure Rust

https://crates.io/crates/multiprobe
1•biplabku•44m ago•0 comments

We're evolving toward our own extinction

https://twitter.com/goon_nguyen/status/2097918005959332200
1•cmpit•44m ago•0 comments

How to make GPT-6 Astra creative

https://www.echohive.ai/how-to-make-astra-creative
1•echohive42•47m ago•0 comments

Groups caught using the same Chrome and Windows exploit kit

https://arstechnica.com/information-technology/2026/09/4-groups-caught-using-the-same-chrome-and-...
2•joozio•53m ago•0 comments

The Daily Clouflare Outage of Today

https://www.cloudflarestatus.com/incidents/sjs8s0q2x4hw
1•Betelbuddy•54m ago•1 comments

AEM and jQuery Popular in Web Stacks of Worlds Largest Companies

https://hackertarget.com/forbes-2000-technology-insights/
2•the_wanderer•54m ago•0 comments