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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/

Codebadger – MCP server for static code analysis with Joern

https://github.com/lekssays/codebadger
1•codebadger•2m ago•0 comments

Show HN: Generate a lot of ad creatives for your SaaS in one click

https://zenduxai.com
1•total_plus•3m ago•0 comments

Data as a Product Is a Promise

https://yusufaytas.com/data-as-a-product-a-new-frontier
3•yapqueen•4m ago•0 comments

Boards of Canada – Introit / Prophecy at 1420 MHz

https://www.youtube.com/watch?v=74NluS3jzTo
1•nntwozz•7m ago•0 comments

Doctors Just Staged the Quietest Coup in American History

https://thegrimhistorian.substack.com/p/36-doctors-just-staged-the-quietest
5•s4i•8m ago•0 comments

Will AI kill the research paper?

https://marginalrevolution.com/marginalrevolution/2026/05/will-ai-kill-the-research-paper.html
2•smitty1e•9m ago•0 comments

Multi-camera scenes and Smart transitions in our open-source 3D web platform

https://vectreal.com/news-room/camera-presets-and-transitions
1•Vectreal-Admin•9m ago•0 comments

Tech is turning increasingly to religion in a quest to create ethical AI

https://apnews.com/article/ai-artificial-intelligence-ethics-religion-roundtable-053a44133c64703f...
2•cainxinth•10m ago•0 comments

Amazon's data center in Chile is moving forward

https://www.reuters.com/sustainability/land-use-biodiversity/amazons-chile-data-center-moves-ahea...
1•01-_-•11m ago•0 comments

Robot Operating System

https://en.wikipedia.org/wiki/Robot_Operating_System
1•tosh•14m ago•0 comments

There's a Long-Shot Proposal to Protect California Workers from AI

https://www.wired.com/story/tom-steyer-proposes-jobs-guarantee-to-protect-california-workers-from...
2•joozio•14m ago•0 comments

Upgrade your Symfony 1.x Website To PHP 8.x Compatibility – PHP 8.5.6 Tested

https://github.com/se7enxweb/symfonyone
2•7x•21m ago•1 comments

Technical Dimensions of Programming Systems

https://tomasp.net/techdims/
2•tosh•24m ago•0 comments

NV-CA state line casinos and truck stop to close July 4

https://www.vvdailypress.com/story/news/local/2026/05/06/primm-casinos-closing-along-stateline-hu...
1•burnt-resistor•26m ago•0 comments

Steering Zig Fmt

https://matklad.github.io/2026/05/08/steering-zig-fmt.html
1•birdculture•26m ago•0 comments

If you're a programmer and you feel depressed by AI, don't be!

https://unixdigest.com/articles/if-youre-a-programmer-and-you-feel-depressed-by-ai-dont-be.html
2•jruohonen•26m ago•0 comments

Israel's AI targeting system: data from a phone become a death sentence

https://www.latimes.com/world-nation/story/2026-05-04/inside-israels-ai-targeting-system-how-data...
2•YeGoblynQueenne•27m ago•0 comments

AI Startup's Software Watches Employees as They Work

https://www.forbes.com/sites/rashishrivastava/2026/05/10/this-ai-startups-software-watches-employ...
3•geox•27m ago•0 comments

Counterfeit Power Cables – A Fire Waiting to Happen

https://goughlui.com/2026/05/09/notes-counterfeit-power-cables-a-fire-waiting-to-happen/
1•giuliomagnifico•36m ago•0 comments

Cangjie, Huawei's new language for HarmonyOS NEXT

https://cangjie-lang.cn/en/docs?url=%2F0.53.13%2Fuser_manual%2Fsource_en%2Ffirst_understanding%2F...
1•pjmlp•42m ago•0 comments

Replacing a 3 GB SQLite db with a 10 MB FST (finite state transducer) binary

https://til.andrew-quinn.me/posts/replacing-a-3-gb-sqlite-database-with-a-7-mb-fst-finite-state-t...
5•hiAndrewQuinn•45m ago•0 comments

Facebook Reveals Its Smart Glasses' Nerve-Tracking Wristband Tech (2021)

https://www.slashgear.com/facebook-reveals-its-smart-glasses-nerve-tracking-wristband-tech-18664390/
1•Eridanus2•46m ago•0 comments

Show HN: Make your codebase agent ready

https://github.com/jaksa76/agentize
3•jaksa•51m ago•0 comments

Notetux++ – a native GTK3 Linux port of Notepad++, written in C11

https://github.com/notetux-plus-plus/notetux-plus-plus
3•andreacoi•53m ago•0 comments

Show HN: Akmon, a Rust AI coding agent for regulated engineering

https://github.com/radotsvetkov/akmon
3•radotsvetkov•53m ago•0 comments

Agent Readiness

https://jaksa.me/blog/2026-05-10-agent-readiness
1•jaksa•53m ago•0 comments

FB >> HTTPS://Www.facebook.com/EndoPeakGet/

https://www.facebook.com/EndoPeakGet
1•jarrykyll•56m ago•0 comments

"openai.com" was once the personal homepage of a guy named glenn

https://bsky.app/profile/annierau.bsky.social/post/3mkzrvrn44c2h
8•ndr42•57m ago•0 comments

Show HN: A Skill/MCP to access any open-source repo's code and docs

https://github.com/NitroRCr/gread
2•krytro•57m ago•0 comments

Fc, a lossless compressor for floating-point streams

https://github.com/xtellect/fc
1•enduku•1h ago•0 comments