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/

Spaceship Service Outage Update

https://www.spaceship.com/blog/spaceship-service-outage-update/
2•anonu•11m ago•0 comments

Haitians in Springfield are required to report to ICE and wear ankle monitors

https://ohiocapitaljournal.com/2026/08/14/haitians-in-springfield-are-required-to-report-to-ohios...
5•hn_acker•15m ago•0 comments

Youngest Black professor at Cambridge who faced plagiarism claims is found dead

https://apnews.com/article/jason-arday-cambridge-professor-london-dead-reports-9036e2b405f5849415...
2•petethomas•24m ago•0 comments

Magnitude 7.7 Earthquake – 68 km NNW of Ende, Indonesia

https://earthquake.usgs.gov/earthquakes/eventpage/us6000tkt2/executive
6•Bender•28m ago•0 comments

A New Alzheimer's Therapy – Or Is It?

https://www.science.org/content/blog-post/new-alzheimer-s-therapy-or-it
3•maxall4•31m ago•1 comments

Yes, Code Review Is Still Necessary

https://mattmccormick.ca/yes-code-review-is-still-necessary/
3•mattm•33m ago•1 comments

Nvidia Downsizes Plans for $250B Guarantee of OpenAI Data Center

https://www.wsj.com/tech/nvidia-downsizes-plans-for-250-billion-guarantee-of-openai-data-center-b...
3•JumpCrisscross•35m ago•0 comments

Deliverance from 27,000 feet (2017)

https://www.nytimes.com/interactive/2017/12/18/sports/everest-deaths.html
2•ValentineC•37m ago•0 comments

Ramabana – Rama's Arrow

https://github.com/vedicreader/ramabana
2•karthikrajgopal•39m ago•0 comments

Nvidia discloses $21B stake in SpaceX

https://www.ft.com/content/6f66a76d-0b2d-4301-886c-87ecc046731b
4•JumpCrisscross•39m ago•2 comments

Show HN: Dictata – Local Whisper dictation with LLM cleanup

https://github.com/AntoineChatry/Dictata
2•AntoineC_•43m ago•0 comments

Can LLMs work in the wet lab?

https://www.benchling.com/blog/can-llms-work-in-the-wet-lab
2•geneticdrifts•44m ago•0 comments

The Ploopy A+ Trackball Is Here

https://blog.ploopy.co/the-aplus-is-finally-here-499
11•big_toast•47m ago•3 comments

NSA and IETF, Part 9

https://blog.cr.yp.to/20260814-update.html
4•libroot•48m ago•0 comments

Clawtopus

https://clawtopus.com
2•gajus•49m ago•0 comments

Show HN: Nikon F100 Film Camera Repair Notes

https://github.com/enthdegree/f100
2•enthdegree•51m ago•1 comments

The Commons – experiments in inherited knowledge and errors between LLM agents

https://github.com/coladul/the_commons/tree/main
2•coladul•53m ago•0 comments

Annual Summary Report of Coral Reef Condition 2025/26

https://www.aims.gov.au/monitoring-great-barrier-reef/gbr-condition-summary-2025-26
3•thunderbong•55m ago•0 comments

ShieldFont: Bludgeoning AI Scrapers That Disrespect Robots.txt

https://hackaday.com/2026/08/14/shieldfont-bludgeoning-ai-scrapers-that-disrespect-robots-txt/
2•anonymousiam•58m ago•0 comments

2D Gaussian Splatting for Bézier Spline Line Art Vectorization

https://studios.disneyresearch.com/2026/07/16/2d-gaussian-splatting-for-bezier-spline-line-art-ve...
3•Jimmc414•1h ago•1 comments

Ask HN: What physical publication do you still buy?

2•sergiotapia•1h ago•6 comments

Trump says USS Lincoln's record time at sea during operations not long enough

https://apnews.com/article/trump-iran-aircraft-carrier-uss-lincoln-023413c38373d4a6ba033612a1f552c6
4•petethomas•1h ago•0 comments

Supersonic Trebuchet [video]

https://www.youtube.com/watch?v=Co57SfcT-h0
4•CharlesW•1h ago•0 comments

Simplifying and Refactoring Introductory Calculus

https://arxiv.org/abs/1811.03459
8•E-Reverance•1h ago•0 comments

The Most Famous AI Writing Tic Is Also the Most Mysterious

https://www.theatlantic.com/technology/2026/07/ai-chatbot-writing-tic-negative-parallelism/687892/
2•paulpauper•1h ago•0 comments

I made the fastest open source CAD renderer in the world

https://twitter.com/i/status/2088075553077072088
5•StefanGolas•1h ago•1 comments

The Erdős–Simonovits degeneracy conjecture is false for all R ≥ 2

https://twitter.com/ctjlewis/status/2088332537231704186
2•ctjlewis•1h ago•0 comments

Show HN: Bloxwap – The Easiest Way to Trade

https://bloxwap.com/trade/HYPE
3•joeblau•1h ago•0 comments

Corgi kills short-lived website that ranked its female employees

https://sf.gazetteer.co/corgi-kills-short-lived-website-that-ranked-its-female-employees
10•randycupertino•1h ago•2 comments

Mobile Adapter GB

https://en.wikipedia.org/wiki/Mobile_Adapter_GB
5•LaserDiscMan•1h ago•0 comments