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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/

Millwright: Smarter Tool Selection from Agent Experience

https://minor.gripe/posts/2026-03-13-millwright_smarter_tool_selection_with_adaptive_toolsheds/
1•dnautics•28s ago•0 comments

Show HN: Playtest my browser-based RPG

https://archipelago-sandy.vercel.app/
1•blinkbat•2m ago•0 comments

I Hate Anthropic and You Should Too

https://danielmiessler.com/blog/why-you-should-hate-anthropic
1•arkhadus•3m ago•0 comments

Self-Driving Codebase: Background agents and the next era of software delivery

https://background-agents.com/
1•iBelieve•5m ago•0 comments

CIA Prepares Criminal Referral of Tucker Carlson, as Israel et al. Demand Arrest

https://greenwald.substack.com/p/cia-prepares-criminal-referral-of
2•treetalker•8m ago•0 comments

Giving MCP servers a voice in tool selection

https://divanv.com/post/server-side-tool-gating/
1•divanvisagie•14m ago•0 comments

Manjaro Linux 2.0 Manifesto

https://forum.manjaro.org/t/manjaro-2-0-manifesto/186171
2•hmm37•16m ago•0 comments

To fall asleep faster, try cognitive shuffling

https://www.washingtonpost.com/wellness/2026/03/14/insomnia-cognitive-shuffling/
2•bookofjoe•20m ago•1 comments

Steve Jobs's 10-80-10 Rule Is More Useful in the AI Era

https://www.inc.com/jessica-stillman/steve-jobs-10-80-10-rule-is-even-more-useful-in-the-ai-era/9...
1•rosiesherry•20m ago•1 comments

Show HN: Open-source playground to red-team AI agents with exploits published

https://github.com/fabraix/playground
1•zachdotai•20m ago•0 comments

Learn Haskell in Two Weeks

https://mercury.com/blog/learn-haskell-in-two-weeks
2•cosmic_quanta•22m ago•0 comments

Show HN: OnTimer – persistent calendar alarms so you never miss a meeting

https://www.ontimer.app
2•ethangarr•24m ago•0 comments

Website visualizes the 100k most popular Wikipedia articles as skyscrapers

https://wikicity.app/
1•mykowebhn•25m ago•0 comments

CarTalk-AMP Web Player

https://cartalk-amp.exe.xyz/
1•indigodaddy•26m ago•0 comments

Building observable file systems for agents

https://blog.chudioranu.com/posts/agent-file-systems-observability/
2•httptetsuo•30m ago•0 comments

Token optimized query language (Memelang)

https://memelang.net/10/
1•bri-holt•30m ago•0 comments

Show HN: SciTeX Notification – Give AI agents a voice: TTS, phone calls, SMS

https://github.com/ywatanabe1989/scitex-notification
1•ywatanabe1989•31m ago•0 comments

Show HN: Kubernetes Security Profile Generator Using eBPF

2•mrayas•34m ago•0 comments

Nasdaq's Shame

https://keubiko.substack.com/p/nasdaqs-shame
6•imichael•34m ago•0 comments

A new Bigfoot documentary helps explain our conspiracy-minded era

https://www.msn.com/en-us/news/us/a-new-bigfoot-documentary-helps-explain-our-conspiracy-minded-e...
4•zdw•34m ago•0 comments

Twitch is overhauling its suspensions policy

https://techcrunch.com/2026/02/24/twitch-is-overhauling-its-suspensions-policy/
1•PaulHoule•35m ago•0 comments

CostClaw – free local dashboard to track and reduce OpenClaw agent costs

https://github.com/Aperturesurvivor/costclaw-telemetry
1•JosiahWil•35m ago•1 comments

From the Hills of Nepal to the Colombian Jungle: A Migrant's Story (2020)

https://www.occrp.org/en/project/the-cruel-road-north/from-the-hills-of-nepal-to-the-colombian-ju...
1•joebig•36m ago•0 comments

GladAItor – Crowd-testing AI products in a public arena

https://glad-ia-tor.com/
1•Enjoyooor•38m ago•1 comments

Kangina

https://en.wikipedia.org/wiki/Kangina
7•thunderbong•39m ago•0 comments

Cert Authorities Check for DNSSEC from Today

https://www.grepular.com/Cert_Authorities_Check_for_DNSSEC_From_Today
1•zdw•39m ago•0 comments

Hacking 'Skill' distilled from 4200 Hackerone vulns

https://instavm.io/blog/analysed-4000-to-create-security-agent-cli
1•mkagenius•40m ago•0 comments

Copilot Health

https://microsoft.ai/news/introducing-copilot-health/
1•geox•40m ago•0 comments

Cloudflare forked just-bash and they really, really should not have

https://twitter.com/cramforce/status/2033285112478171373
2•switz•43m ago•2 comments

Road Safety Annual Report 2025 [pdf]

https://www.itf-oecd.org/road-safety-annual-report-2025
1•gnabgib•44m ago•0 comments