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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/

The E-Ink Monopoly [video]

https://www.youtube.com/watch?v=3QbJ7pnc1Lc
1•trymas•44s ago•0 comments

Blink – Embeddable one-pass typed decision in 33 µs

https://github.com/sqliteai/blink
1•marcobambini•1m ago•0 comments

What Changed from GPT-3.5 to GPT-4? GPT-3.5: 0/30 Empty Nulls. GPT-4: 30/30

https://www.reddit.com/r/ArtificialInteligence/comments/1wotljm/what_changed_from_gpt35_to_gpt4_s...
1•rayanpal_•3m ago•0 comments

Steve Jobs' Full iPhone 4 Antennagate Press Conference Q&A Session

https://www.youtube.com/watch?v=BiN5ERktXz0
2•aSig•4m ago•0 comments

Can You Beat Jev?

https://antics.gg/can-you-beat-jev
1•thatslast•6m ago•0 comments

Albanese says OpenAI hacked Medicare and told Australia months later

https://www.theguardian.com/australia-news/2026/sep/24/anthony-albanese-says-openai-agent-hacked-...
1•skor•8m ago•0 comments

What's Left to Get Wrong

https://blogsh.app/posts/2026/what-s-left-to-get-wrong/
1•krab•9m ago•0 comments

Meta is making a standalone Muse AI gadget

https://www.theverge.com/tech/999750/muse-charm-meta-ai-hardware
1•arbayi•10m ago•0 comments

Mysteries of AI Generalization

https://www.astralcodexten.com/p/mysteries-of-ai-generalization
1•terryf•10m ago•0 comments

Lysios – LLM red teaming org

https://lysios.ai/
1•davedx•10m ago•0 comments

The biggest surprises from a year working at OpenAI

https://aalokpatwa.substack.com/p/one-year-at-openai
1•mji•11m ago•0 comments

Ways to Encrypt Data on Servers

https://lwn.net/Articles/1092553/
1•DavideNL•14m ago•0 comments

C-to-Rust Fallacy: Automatic Refactoring != Memory Security

https://arxiv.org/abs/2609.25682
3•sbulaev•15m ago•0 comments

The Nightmare of Voskhod 2

https://www.smithsonianmag.com/air-space-magazine/the-nightmare-of-voskhod-2-8655378/
1•thunderbong•15m ago•0 comments

Show HN: FireWand – A lightweight manager for GCP SQL databases

https://firewand.dev/
1•moshercode•16m ago•0 comments

Mocks and Explicit Contracts

https://dashbit.co/blog/mocks-and-explicit-contracts
1•Bluestein•17m ago•0 comments

No grades, no tests, no degree: Andreessen Horowitz launching builders' academy

https://sfstandard.com/2026/09/22/grades-tests-degree-andreessen-horowitz-launching-sf-academy-bu...
1•jnord•21m ago•0 comments

The "C" Word

https://blog.coredump.cx/p/the-c-word
2•surprisetalk•22m ago•0 comments

The Story Of Mel: A Real Programmer

https://melsloop.com/stories/the-story-of-mel/articles
1•signa11•24m ago•0 comments

Semantics Delivery Network: Rethinking Web Retrieval for LLM Agents

https://arxiv.org/abs/2609.22486
1•scottsiume•28m ago•1 comments

Browsers Situationship: When Browsers Agree but the Spec Doesn't

https://www.atbrakhi.dev/blog/browsers-situationship
2•cpeterso•30m ago•0 comments

The Bikeshed Email (1999)

https://phk.freebsd.dk/sagas/bikeshed/
1•theanonymousone•32m ago•0 comments

Spy Exhaustion Reversal Gauge

1•jakins1777•32m ago•0 comments

Layoff.tools: Help Solve Unemployment

https://layoff.tools/
3•mxfactorial•36m ago•1 comments

Turn Text into Actions with Needle, 14Mb

https://www.raspberrypi.com/news/turn-text-input-into-actions-with-needle-a-14mb-function-calling...
1•unprovable•42m ago•0 comments

Python Enhancement Proposal 824: None-coalescing operators

https://peps.python.org/pep-0824/
2•theanonymousone•45m ago•0 comments

Psilocybin as a treatment for repetitive mild head injury [pdf]

https://www.nature.com/articles/s42003-026-10804-w.pdf
2•dr_dshiv•52m ago•0 comments

ArchKeel – results from 2 large agentic refactoring experiments

https://github.com/rapiddweller/archkeel
3•ake2l•58m ago•0 comments

A Whistleblower Claims the CIA Is Searching DNA Sites for Alien-Human Hybrids

https://www.vice.com/en/article/a-whistleblower-claims-the-cia-is-searching-dna-sites-for-alien-h...
3•handfuloflight•59m ago•0 comments

Early rogue AI agent activity and attempts to hack found on urlquery.net

https://transluce.org/agent-activity
2•snikolaev•1h ago•0 comments