frontpage.
newsnewestaskshowjobs

Made with ♥ by @iamnishanth

Open Source @Github

fp.

Open in hackernews

Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•8mo ago

Comments

trane_project•8mo 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/

If you want to understand any society, look at what it creates

https://notes.philippdubach.com/0009
1•7777777phil•3m ago•0 comments

Vibe Engineering in 2026.1

https://me.0xffff.me/vibe_engineering_202601.html
1•c4pt0r•4m ago•0 comments

The Date Data Type in Oracle vs. PostgreSQL

https://hexacluster.ai/blog/the-date-data-type-in-oracle-vs-postgresql/
1•avivallssa•4m ago•1 comments

Show HN: Pharos – "yarn why" but shows the full chain and what to update (Rust)

https://github.com/vaskort/pharos
1•vaskort•5m ago•0 comments

Train Your Tenacity

https://playtechnique.io/blog/train-your-tenacity.html
1•gwynforthewyn•6m ago•1 comments

Estimation of Variance by a Recursive Equation (pdf, 1969)

https://ntrs.nasa.gov/api/citations/19690028796/downloads/19690028796.pdf
1•slow_typist•7m ago•1 comments

Why sandboxing coding agents is harder than you think

https://martinalderson.com/posts/why-sandboxing-coding-agents-is-harder-than-you-think/
2•jnord•9m ago•1 comments

Frankenwine: Multiple Personas in a Wine Process

https://nullprogram.com/blog/2026/01/19/
1•zdw•9m ago•0 comments

ChatVault – Local-first semantic search for WhatsApp (Rust and WASM)

https://github.com/marcoshernanz/ChatVault
1•marcoshernanz•10m ago•1 comments

Show HN: Cmdarg, argument parsing for bash scripts

https://github.com/akesterson/cmdarg
1•akesterson•11m ago•0 comments

James Prinsep, polymath who deciphered Kharosthi and Brahmi scripts

https://en.wikipedia.org/wiki/James_Prinsep
1•like_any_other•11m ago•0 comments

Even citing NSF funded research is an ACM premium feature

https://win-vector.com/2026/01/19/even-citing-nsf-funded-research-is-an-acm-premium-feature/
1•jmount•12m ago•0 comments

GLM-4.7-Flash 30B-A3B MoE

https://xcancel.com/zai_org/status/2013261304060866758
1•Alifatisk•13m ago•0 comments

The average 50-something American is now worth $1.4M

https://www.usatoday.com/story/money/2026/01/19/average-net-worth-1-million-50-year-olds/88202093...
5•lxm•14m ago•3 comments

The US is buying icebreakers from Finland

https://www.bbc.co.uk/news/articles/c0q48d71ke8o
3•perihelions•15m ago•0 comments

Systems design 3: LLMs and the semantic revolution

https://apenwarr.ca/log/20251120
1•gjadi•15m ago•0 comments

Anthropic's Interpretability Research Blog

https://transformer-circuits.pub/
1•philipfweiss•17m ago•1 comments

Show HN: EV-QA-Framework – Open-source battery testing with ML anomaly detection

https://github.com/remontsuri/EV-QA-Framework
1•remontsuri•18m ago•1 comments

How much can a city take?

https://www.theverge.com/policy/864195/minneapolis-ice-invasion-organizing-immigration
2•HotGarbage•18m ago•0 comments

Why file systems are here to stay for agents

https://archil.com/post/why-file-systems-are-here-to-stay
1•huntaub•18m ago•0 comments

Pasture – Qualify Your Signups

https://www.usepasture.com/
1•rogutkuba•19m ago•1 comments

Turn off your Firestore automatic indexes

https://jaredkhan.com/blog/firestore-indexes
1•krinn_silver•19m ago•1 comments

3D Print: loud and compact emergency whistle

https://www.thingiverse.com/thing:2933021/files
1•rendx•20m ago•0 comments

Intel's 18A claims 50% lower power than Apple's 3nm [video]

https://www.youtube.com/watch?v=8RrA5SVfC_g
2•thelastgallon•21m ago•0 comments

DiffusionBlocks: Block-Wise Neural Network Training

https://arxiv.org/abs/2506.14202
1•E-Reverance•21m ago•0 comments

Show HN: Whirligig – Tinder for Gigs

https://whirligig.live
1•idiocache•22m ago•0 comments

Morally judging famous and semi-famous people

https://marginalrevolution.com/marginalrevolution/2026/01/morally-judging-famous-and-semi-famous-...
2•7777777phil•24m ago•0 comments

Digital Transformation: Why Some Companies Succeed and Others Fail

https://dynamic.broadtechnologies.site/digital-transformation-why-some-companies-succeed-and-othe...
1•Silvaaaa•24m ago•0 comments

The Rise and Fall of the American Monoculture

https://www.wsj.com/business/media/american-pop-culture-history-ce8672f1
1•jnord•24m ago•0 comments

Asus Confirms It Won't Launch Phones in 2026, May Leave Android Altogether

https://www.pcmag.com/news/asus-confirms-it-wont-launch-phones-in-2026-may-leave-android-altogeth...
2•jnord•26m ago•0 comments