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Bloom's two sigma problem (2020)

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

Comments

trane_project•8mo 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/

Calculus Made Easy (1910)

https://calculusmadeeasy.org/
1•Tomte•1m ago•0 comments

The Map of Mathematics

https://mathmap.quantamagazine.org/map/
1•Tomte•3m ago•0 comments

Exodus of IPv4 from War-torn Ukraine (2025)

https://www.kentik.com/blog/exodus-of-ipv4-from-war-torn-ukraine/
1•throw0101c•6m ago•1 comments

I compared WinApps and WinBoat, which integrate a Windows VM to desktop Linux

https://www.theregister.com/2026/02/14/winapps_and_winboat/
1•lproven•6m ago•0 comments

Ask HN: LLMs helping you read papers and books

1•amelius•8m ago•0 comments

How to Solve the Tenor Shortage

https://www.economist.com/leaders/2026/02/12/how-to-solve-the-tenor-shortage
1•testdelacc1•9m ago•1 comments

A Brief History of Sega Enterprises

https://www.abortretry.fail/p/a-brief-history-of-sega-enterprises
1•rbanffy•12m ago•0 comments

Show HN: Pluma – Write professional articles for your ideas and projects

https://pluma.ink/
1•nader0913•12m ago•0 comments

Go and Versioning: Minimal Version Selection

https://research.swtch.com/vgo-mvs
1•ryangibb•14m ago•0 comments

On Tilt – America's new gambling epidemic

https://harpers.org/archive/2026/02/on-tilt-america-gambling-epidemic-jasper-craven/
1•pseudolus•14m ago•0 comments

TexGuardian – Claude Code, but for LaTeX academic papers

https://github.com/arcAman07/TexGuardian
1•amananytime07•17m ago•1 comments

My math theory to automata Hilbert, Fourier and integral orders

https://github.com/tambetvali/LaeMath/tree/main/MathFuncs/Docs
2•tvali•23m ago•1 comments

Charles Bonnet Syndrome

https://en.wikipedia.org/wiki/Visual_release_hallucinations
2•debarshri•26m ago•0 comments

Show HN: Eliza, a line-by-line remake of the original AI chatbot from 1966

https://marquisdegeek.github.io/Eliza-Origins/
1•marquisdegeek•29m ago•0 comments

Record Low Snow in the West Will Mean Less Water, More Fire, and Political Chaos

https://www.wired.com/story/record-low-snow-in-the-west-will-mean-less-water-more-fire-and-politi...
1•xbmcuser•31m ago•0 comments

Show HN: Custom illustrated kids' book, generated and printed (StoryStarling)

2•storystarling•33m ago•0 comments

Show HN: Boredom Challenge – Test and Improve Your Boredom Tolerance

https://jsattler.github.io/boredom-challenge/
2•jsattler•39m ago•0 comments

Study validates ability to influence dreams, aiding problem-solving during REM

https://news.northwestern.edu/stories/2026/02/dream-engineering-can-help-solve-puzzling-questions
1•giuliomagnifico•40m ago•0 comments

'It's over for us': release of AI video generator Seedance 2.0 spooks Hollywood

https://www.theguardian.com/film/2026/feb/13/new-ai-video-generator-seedance-tom-cruise-brad-pitt
3•mellosouls•42m ago•0 comments

Reversed engineered game Starflight (1986)

https://github.com/s-macke/starflight-reverse
2•tosh•44m ago•0 comments

Show HN: Dw2md – Compile all DeepWiki pages into a single, LLM-friendly file

https://github.com/tnguyen21/dw2md
1•nwyin•45m ago•0 comments

Proof of Humanity

https://www.workingtheorys.com/p/proof-of-humanity
1•jger15•48m ago•0 comments

What to Expect when Using 5G DECT NR+ [pdf]

https://hal.science/hal-05287148v1
1•teleforce•51m ago•0 comments

Show HN: AIWriteBook – AI tool to write, design, and publish full-length books

https://aiwritebook.com
2•marakaci•53m ago•1 comments

No-doomscroll: Ad-block filter lists to hide social media feeds

https://github.com/ZenPrivacy/filter-lists/blob/master/no-doomscroll/readme.md
4•anfragment•55m ago•0 comments

I Fixed Windows Native Development

https://marler8997.github.io/blog/fixed-windows/
2•deevus•56m ago•0 comments

A Forth vocabulary for iteration (2023)

https://blog.information-superhighway.net/a-forth-vocabulary-for-iteration
1•tosh•56m ago•0 comments

AgentProbe – adversarial security testing for AI agents (134 attack patterns)

https://github.com/alexmelges/agentprobe
1•alexmelges•57m ago•0 comments

Sortie En Mer

https://drowningsimulator.wtf/
1•carlos-menezes•1h ago•0 comments

Show HN: Free mission statement generator – paste URL, get draft in 5s

https://champsignal.com/tools/mission-statement-generator
1•maximedupre•1h ago•0 comments