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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/

Why Red Hat Dropped Btrfs and Standardized on XFS in RHEL

https://pbxscience.com/why-red-hat-dropped-btrfs-and-standardized-on-xfs-in-rhel/
1•cromka•2m ago•0 comments

I woke up to see 580 CVE's in 16 deployments

https://farshid.co.uk/entry/i_woke_up_to_see_580_cve_s_in_16_deployments
1•rodmena•5m ago•0 comments

Screw Is Needed for Missiles and Planes. Buying One Can Take Years

https://www.nytimes.com/2026/09/26/business/ball-screws-military-production.html
1•jonah•10m ago•0 comments

What do you do now as a software engineer?

1•fawazali•11m ago•1 comments

Fast poker hand evaluation via hardware synthesis and bitslicing

https://roderickgreen.com/posts/fast-poker-hand-eval/
1•rgreen•13m ago•1 comments

Credence – Jev-style typed decisions from a local GGUF model

https://github.com/bulyaki/Credence
1•naughtiusmax•13m ago•0 comments

The history of Big Tech (it's darker that you think)

https://www.youtube.com/watch?v=lLHl1_Sz7A8
1•louwrentius•16m ago•0 comments

Practical lessons on building software with LLMs and automated governance

https://banes-lab.com/
1•jay-baleine•18m ago•0 comments

ShinyHunters hackers say they stole psychiatric and medical records of FBI staff

https://www.reuters.com/world/shinyhunters-hackers-say-they-stole-psychiatric-medical-records-fbi...
1•wyclif•20m ago•0 comments

"can't a guy walk down the street anymore without being harassed by AI" [video]

https://bsky.app/profile/cabel.panic.com/post/3mwgo5kml3r2z
2•LeoPanthera•20m ago•0 comments

Show HN: Detailed Guide to Agent Memory

https://www.cognee.ai/agent-memory
1•vasa_•28m ago•0 comments

What reversing, modernising old games tells us about the economic impact of AI

https://this.os.isfine.org/blog/posts/what-reverse-engineering-and-modernising-an-old-war-game-te...
1•keeda•29m ago•1 comments

Claude Deleted 48k Files

https://web.archive.org/web/20260920145334/https://www.reddit.com/r/ClaudeAI/comments/1wl5cgo/cod...
12•gurjeet•36m ago•3 comments

344,799 Bible cross-references

https://trekhleb.dev/bible-cross-references/
1•trekhleb•38m ago•0 comments

Universe, Drawn in ASCII

https://gcdatlas.vercel.app/
2•abetusk•39m ago•1 comments

First ever 3D animation (40 year old 3D computer graphics Pixar 1972)

https://www.youtube.com/watch?v=T5seU-5U0ms
3•nmstoker•42m ago•0 comments

Things You Notice Rewatching Ed, Edd N Eddy as an Adult

https://noxluneworld.com/darkest-cartoon-network-episodes/
2•makic•43m ago•0 comments

If Frank Lloyd Wright's Falling Water Was a Tree House (2012)

https://weburbanist.com/2012/03/17/if-wrights-falling-water-were-a-tree-house/
2•WarOnPrivacy•1h ago•1 comments

Top AI companies probing security incidents

https://www.axios.com/2026/09/26/openai-anthropic-thousands-ai-security-incidents
4•Balgair•1h ago•0 comments

react-html-3.2

https://jkosoy.github.io/react-html-3.2/
1•jkosoy•1h ago•2 comments

Laser Weapons Will Be Deployed at Cape Canaveral Spaceport to Take Down Drones

https://www.twz.com/news-features/space-force-getting-lasers-to-kill-drones-over-cape-canaveral-s...
2•cisc•1h ago•0 comments

Interpolating Between Neural Networks

https://flx.ai/2026/interpolating-between-neural-networks
1•flxai•1h ago•0 comments

Allegations of sexual harassment and rape at Bay Area AI party houses

https://www.kron4.com/news/technology-ai/report-details-allegations-of-wild-parties-sexual-harass...
7•lukewarm707•1h ago•0 comments

The Duo. No, the Other Duo

https://morrick.me/archives/10418
2•_Microft•1h ago•0 comments

Ask HN: Any books, list of papers, or articles to understand LLM's

1•forkbomb123•1h ago•0 comments

BubbleRumble: The new social for crypto by Jae Kwon

https://bubblerumble.net
2•arielhavila•1h ago•2 comments

Show HN: Newt – A Swift Package for Jev-Style Decisions on Apple Core AI

https://github.com/willswire/swift-newt
2•willswire•1h ago•0 comments

Vibe coding a real product: a 3D game on the App Store, 20 species, zero revenue

https://apps.apple.com/us/app/dinomino/id6809052147
1•kodnuke•1h ago•0 comments

An Underappreciated Problem with Dating Apps

https://www.theatlantic.com/family/2026/09/dating-strategies-apps-matchmakers/688779/
1•paulpauper•1h ago•0 comments

Donald Trump Hit with 26 Articles of Impeachment

https://www.newsweek.com/donald-trump-hit-with-26-articles-of-impeachment-12492238
10•slater•1h ago•1 comments