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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/

Renewables dominate 2025's newly installed generating capacity

https://arstechnica.com/science/2026/04/globally-86-percent-of-the-new-generating-capacity-was-re...
1•rbanffy•1m ago•0 comments

OpenAI Acquires Tech Talk Show 'TBPN'–and Buys Itself Some Positive News

https://www.wired.com/story/openai-acquires-tbpn-buys-positive-news-coverage/
1•joozio•1m ago•0 comments

Show HN: Event photo matching with badge markers, no face scanning

https://pictag.io
1•gtpoxa•4m ago•0 comments

What Every Security Engineer Should Learn from Star Trek

https://shostack.org/blog/devsecops-learn-from-star-trek/
1•worik•5m ago•0 comments

How Steve Jobs Brought the Apple II to the Classroom

https://hackeducation.com/2015/02/25/kids-cant-wait-apple
1•rbanffy•5m ago•0 comments

'Fatal decision': EU slammed for caving to US pressure on digital rules

https://www.politico.eu/article/fatal-decision-eu-slammed-for-caving-to-us-pressure-on-digital-ru...
2•nickslaughter02•5m ago•0 comments

China's AI Education Experiment

https://www.chinatalk.media/p/chinas-ai-education-experiment
1•pseudolus•9m ago•0 comments

R/programming on Reddit just banned all content related to AI LLMs

https://www.tomshardware.com/tech-industry/artificial-intelligence/the-largest-programming-commun...
1•speckx•11m ago•0 comments

GraalVM and Java and Native Images, compile Java to standalone executables

https://www.graalvm.org/latest/reference-manual/native-image/
2•gigatexal•12m ago•0 comments

Ruby on Rails and SQLite3: fix for silent data loss on column rename or removal

https://github.com/rails/rails/pull/57128
1•eummm•13m ago•0 comments

The Vibecoders Are Coming For Us

https://coz.is/posts/vibecoders_are_coming_for_us.html
2•cozis•13m ago•0 comments

AI Baby Dance Video Generator: Turn Baby Photos into Dancing Videos

https://seaimagine.com/ai-baby-dance-video-generator/
1•taynes•16m ago•0 comments

International law experts allege violations in Iran war

https://www.bbc.co.uk/news/articles/cy91x2n29nlo
1•only_in_america•17m ago•0 comments

SpaceX Files FCC Complaint over Ariane 64 Amazon Leo Launch

https://europeanspaceflight.com/spacex-files-fcc-complaint-over-ariane-64-amazon-leo-launch/
1•lysace•18m ago•0 comments

Europe's AI sovereignty just became a security emergency

https://www.euractiv.com/opinion/europes-ai-sovereignty-just-became-a-security-emergency/
1•vrganj•21m ago•0 comments

RiskReady-open-source GRC platform with MCP gateway and human-approved mutations

https://github.com/riskreadyeu/riskready-community
1•danielminda7•23m ago•0 comments

We're Addicted to Our Devices

https://type-writer.org/?p=7369
1•speckx•25m ago•0 comments

The "Passive Income" trap ate a generation of entrepreneurs

https://www.joanwestenberg.com/the-passive-income-trap-ate-a-generation-of-entrepreneurs/
1•jotaen•26m ago•0 comments

Show HN: LLMnesia – search across ChatGPT, Claude, Gemini chats locally

https://chromewebstore.google.com/detail/llmnesia/leekfgbdojiaabifbjbbgiiclannjdkf
3•keiranflynn•26m ago•2 comments

From Hierarchy to Intelligence

https://block.xyz/inside/from-hierarchy-to-intelligence
1•gpi•30m ago•0 comments

The feet don't rotate with the body

https://en.wikipedia.org/w/extensions/WP25EasterEggs/resources/media/video/outerspace-idle-light....
4•ColinWright•35m ago•0 comments

Atmospheric CO₂ accelerating faster than fossil fuel emissions are growing

https://bsky.app/profile/thierryaaron.bsky.social/post/3mil6lnsrqc26
3•mariuz•37m ago•0 comments

From Reversibility to Irreversibility: Biggest shift in the history of physics

https://chillphysicsenjoyer.substack.com/p/from-reversibility-to-irreversibility
1•crescit_eundo•38m ago•0 comments

Running Qwen 35B on 16GB Mac Mini via MMAP (17 tok/s) then swapping to Gemma 4

https://thoughts.jock.pl/p/local-llm-35b-mac-mini-gemma-swap-production-2026
2•joozio•40m ago•0 comments

Funny Quotes Radar

https://gagdash.com/
1•hackerbeat•40m ago•0 comments

Adobe wrote to my hosts file. I've never had an app do this before

https://old.reddit.com/r/webdev/comments/1sb6hzk/adobe_wrote_to_my_hosts_file_ive_never_had_an_app/
4•speckx•41m ago•0 comments

Zperiod: Interactive Periodic Table and Chemical Equation Balancer

https://zperiod.app/
1•thunderbong•44m ago•0 comments

Why Is It So Difficult to Develop Drugs for Cancer? (2010)

https://www.newyorker.com/magazine/2010/05/17/the-treatment-2
2•downbad_•45m ago•1 comments

Mercor, a $10B AI startup confirms major data breach

https://fortune.com/2026/04/02/mercor-ai-startup-security-incident-10-billion/
4•taubek•46m ago•0 comments

Kafka Options Explorer

https://kafka-options-explorer.conduktor.io/
1•enether•46m ago•1 comments