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Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•10mo ago

Comments

trane_project•10mo 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/

Show HN: Safe-install – Docker-first install-time hardening for pip and NPM

https://github.com/Khaeldur/safe-install
1•khaeldur•2m ago•0 comments

Meta Harmed Children, Allowing Adults to Prey on Them

https://www.wsj.com/tech/landmark-verdict-says-meta-harmed-children-allowing-adults-to-prey-on-th...
1•petethomas•2m ago•1 comments

Tessera – 32 OWASP security tests for GPT-4o, Claude, Gemini, Llama 3

https://github.com/tessera-ops/tessera
1•alysheaib•3m ago•0 comments

Arm releases first in-house chip, with Meta as debut customer

https://www.cnbc.com/2026/03/24/arm-launches-its-own-cpu-with-meta-as-first-customer.html
1•goplayoutside•5m ago•0 comments

Promptzy: Free Mac prompt and skills manager with a built-in Markdown editor

https://www.promptzy.app/
1•navbuildz•6m ago•1 comments

Firefox introduces Split View: Two tabs side by side, right where you need them

https://blog.mozilla.org/en/firefox/split-view/
3•nateb2022•6m ago•1 comments

OpenAI just gave up on Sora and its billion-dollar Disney deal

https://www.theverge.com/ai-artificial-intelligence/899850/openai-sora-ai-chatgpt
1•ukuina•6m ago•0 comments

Bleep – Local AI DLP proxy that catches secrets before they reach ChatGPT

https://www.bleep-it.com
1•llmhub•8m ago•0 comments

The People Making a Killing Gambling on War

https://www.racket.news/p/warriors-casino-the-people-making
1•oopsiremembered•8m ago•0 comments

Ask HN: Do you feel less happy when coding with agent?

1•zane__chen•9m ago•0 comments

Reward, Risk, and Regulation: American Attitudes Toward Artificial Intelligence [pdf]

https://www.gallup.com/file/analytics/695027/SCSP-Gallup-American-Perspectives-AI_Report.pdf
1•djoldman•10m ago•0 comments

Metasystemic

https://metasystemic.xyz
1•gdss•13m ago•0 comments

MiniStack: Free, open-source LocalStack alternative with real DB containers

https://ministack.org
1•nnucera•14m ago•0 comments

Humane's AI pin is now HP's Copilot

https://gizmodo.com/this-is-what-has-become-of-the-humane-ai-pin-an-enterprise-laptop-chatbot-200...
2•lemonish97•16m ago•0 comments

Does nobody care about not being able to copy from Slack anymore?

4•neal_caffrey•18m ago•1 comments

A daily brief of what the top podcasts are saying

https://www.podsnacks.com/
2•siruva07•20m ago•0 comments

NASA unveils Space Reactor-1 Freedom mission to Mars in 2028

https://www.nasaspaceflight.com/2026/03/nasa-sr1-freedom-mars-2028/
2•LorenDB•21m ago•0 comments

Stack Overflow for Agents

https://arstechnica.com/ai/2026/03/mozilla-dev-introduces-cq-a-stack-overflow-for-agents/
3•greedo•21m ago•0 comments

Tell HN: Llamacpp now supports unified system RAM offloading on Linux

4•dabockster•23m ago•0 comments

OpenAI shutters AI video generator Sora after just six months

https://www.theguardian.com/technology/2026/mar/24/openai-ai-video-sora
2•auggierose•24m ago•1 comments

Rgx – terminal regex debugger with JSON output, colored matching, and 3 engines

https://github.com/brevity1swos/rgx
3•brevity1swos•24m ago•0 comments

Ask HN: Does the Gmail iOS app often hang in iOS 26?

3•lysace•26m ago•1 comments

How we made Ramp Sheets self-maintaining

https://twitter.com/i/status/2036165188899012655
2•pongogogo•26m ago•0 comments

Litellm wasn't just attacked – code executed before the app even started

2•Olsberg•27m ago•0 comments

Firefox now has free 50Gb built-in VPN

https://support.mozilla.org/en-US/kb/built-in-vpn
3•Gaishan•27m ago•0 comments

Hypnic Jerk

https://en.wikipedia.org/wiki/Hypnic_jerk
2•thunderbong•27m ago•0 comments

Predicting onset of symptomatic Alzheimerʼs disease with plasma p-tau217 clocks

https://www.nature.com/articles/s41591-026-04206-y
1•bookofjoe•28m ago•0 comments

Hash23 – A constexpr implementation of different hashing algorithms

https://github.com/rwindegger/hash23
1•superreeen•31m ago•0 comments

Static Machine Code Analysis

https://tetzank.github.io/posts/static-machine-code-analysis/
1•ibobev•31m ago•0 comments

4 Types of Quantum Computers Explained [video]

https://www.youtube.com/watch?v=l8L7afabIJ0
1•jonbaer•33m ago•0 comments