frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

Open in hackernews

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/

IBM and the University of Chicago Demonstrate Quantum Advantage

https://newsroom.ibm.com/2026-07-30-ibm-and-the-university-of-chicago-demonstrate-quantum-advanta...
1•riversflow•46s ago•0 comments

Story of Roomy

https://story.roomy.space
1•jdsane•8m ago•0 comments

What if SELECT, FROM, WHERE were functions?

https://remy.wang/blog/prela.html
1•remywang•8m ago•0 comments

Show HN: Do-over, undo for AI agent shell commands

https://github.com/CaydenChik/doover
1•Cayden27•13m ago•1 comments

Flock Has a Powerful New AI Tool for Police. We Got Its Code

https://www.wired.com/story/flock-safety-os-investigate/
3•divbzero•16m ago•0 comments

AI is changing how we code. Is this positive?

1•simondukr•19m ago•1 comments

Contract for difference

https://en.wikipedia.org/wiki/Contract_for_difference
1•petethomas•19m ago•0 comments

Ask HN: When will the AI bubble burst and eradicate all life in the planet?

2•roschdal•19m ago•1 comments

Keycloak unauthenticated account takeover via reset-credentials flow bypass

https://github.com/keycloak/keycloak/issues/51833
1•4mnt•19m ago•0 comments

AI Is Changing How We Hac

1•simondukr•20m ago•0 comments

Agarwood

https://en.wikipedia.org/wiki/Agarwood
2•teleforce•22m ago•0 comments

PgDog is 2x faster than RDS Proxy

https://pgdog.dev/blog/pgdog-vs-rds-proxy
1•levkk•28m ago•0 comments

Vibe Coder – A Parody of Downfall

https://twitter.com/amitranjan/status/2090011590150287837
2•vismit2000•31m ago•0 comments

Ways to Smuggle SQLite into Nix

https://fzakaria.com/2026/08/19/three-ways-to-smuggle-sqlite-into-nix
1•ingve•32m ago•0 comments

NASA's Attempt to Save the Swift Telescope Has Failed

https://www.nytimes.com/2026/08/19/science/nasa-swift-telescope-failed-rescue.html
3•greenburger•33m ago•0 comments

Jason Arday's Final Self-Delusion

https://www.theatlantic.com/ideas/2026/08/jason-arday-death-lies-delusion/688311/
3•pabo•34m ago•0 comments

Why the Future Doesn't Need Us (2000)

https://www.wired.com/2000/04/joy-2/
2•naves•36m ago•0 comments

LLM Reasoning Traces Are Not Audit Records

https://rye.ai/blog/cot-faithfulness-reasoning-traces-not-audit-logs/
1•wakahiu•36m ago•1 comments

Windows brings out the Rorschach test in everyone

https://devblogs.microsoft.com/oldnewthing/20030825-00/?p=42803
5•luu•39m ago•0 comments

Rising number of people seeking ADHD diagnosis without treatment, say experts

https://www.theguardian.com/society/2026/aug/18/great-adhd-myth-rising-diagnosis-without-treatment
3•theanonymousone•43m ago•0 comments

The data center fight is heating up

https://www.axios.com/2026/08/19/ai-power-data-center-electricity-construction
6•1vuio0pswjnm7•52m ago•1 comments

The tests your agent writes defend the code it saw. Bugs included

4•Marvin_RunAI•53m ago•0 comments

Cuisenaire Rods

https://en.wikipedia.org/wiki/Cuisenaire_rods
4•tosh•54m ago•0 comments

Old.reddit.com is now login only

6•denvrede•54m ago•4 comments

Seoul to cover all sidewalks with shade by 2028 to combat heat waves

https://en.yna.co.kr/view/AEN20260819007000315
6•riffraff•55m ago•0 comments

Wrapping C libraries in Nim (2023)

https://peterme.net/wrapping-c-libraries-in-nim.html
3•erikschoster•56m ago•0 comments

Show HN: Rove – parallel coding agents that can fan out subtasks and report back

https://github.com/Sma1lboy/rove
1•zhallen_work•58m ago•0 comments

Asana cleared 5 years of engineering work in 2 weeks with Codex

https://openai.com/index/asana/
28•tosh•1h ago•54 comments

Why Every Receipt in Taiwan Is a Lottery Ticket [video]

https://www.youtube.com/watch?v=s1EVk7k9S7Q
3•dataflow•1h ago•0 comments

My Grandfather's Career Took Off at 58

https://kejiakejia.substack.com/p/my-grandfathers-career-took-off-at
18•jamarna•1h ago•2 comments