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/

I was never a fan of the calculator

https://www.youtube.com/watch?v=r_Byrs11ccM
1•gugagore•48s ago•0 comments

Analog Hero

https://www.plough.com/articles/analog-hero
2•onefiftymike•2m ago•0 comments

Colorfigures

https://april-zhu.com/colorfigures
2•the-mitr•4m ago•0 comments

Binary read replicas in PostgreSQL, Part 2

https://thebuild.com/blog/binary-read-replicas-in-postgresql-part-2/
2•securitytxt•5m ago•0 comments

Cutting Snowflake task warehouse wake-ups 92% by changing the schedule [video]

https://www.youtube.com/shorts/c5OXgUPL0iU
2•yanivleven•6m ago•0 comments

Diamond Transistor

https://www.df.com/diamond-transistor
2•Gravityloss•6m ago•0 comments

Reinventing the Pencil Sharpener [video]

https://www.youtube.com/watch?v=0Gi5Z51KdUE
2•surprisetalk•6m ago•0 comments

OpenAI trims valuation target to $1.25T after pitching higher price

https://www.ft.com/content/bb564eb1-79d4-4694-aa24-1155202a9abc
2•cik•7m ago•0 comments

Show HN: Kavela – AI Automations that do not fail silently

https://kavela.ai
1•tyhh00•8m ago•0 comments

The lifelong orgasm gap: exploring age's impact on orgasm rates

https://pmc.ncbi.nlm.nih.gov/articles/PMC11217024/
2•bushwart•9m ago•0 comments

Show HN: Vericto – Check AI agents' SQL before Postgres or MySQL runs it

https://github.com/vericto/vericto-proxy
1•donkan168•10m ago•0 comments

Show HN: SenderWire – I'm building a social platform

https://senderwire.com/
1•Threatthriver•10m ago•0 comments

A Farewell to Hubs

https://arcan-fe.com/2026/10/23/a-farewell-to-hubs/
1•kogasa240p•11m ago•0 comments

America must reverse Trump's moral squalor

https://www.theguardian.com/commentisfree/2026/oct/23/trump-moral-squalor
1•hkhn•11m ago•1 comments

Babashka – Fast native Clojure scripting runtime

https://babashka.org
1•andsoitis•13m ago•0 comments

New previously unseen videos from Tiananmen Square

https://www.lemonde.fr/en/international/video/2026/08/14/tiananmen-square-massacre-le-monde-revea...
1•throw0101c•13m ago•0 comments

Strategies for Better Claude Cache Usage

https://www.dgrcode.com/blog/claude-cache
1•dgrcode•13m ago•0 comments

The language that says no: from Milner's LCF to agents writing OCaml

https://hypha.pub/the-language-that-says-no
1•zaiev•15m ago•0 comments

I Built a Modern UK Government Service Using COBOL

https://nooshu.com/blog/2026/10/20/i-built-a-modern-uk-government-service-using-cobol/
2•joelanman•15m ago•0 comments

Popular AI Agent Skills Every Developer Should Know

https://jsdev.space/30-agent-skills/
1•javatuts•15m ago•0 comments

UK council accuses Microsoft of "blackmail" as software fees jump 15%

https://www.neowin.net/news/uk-council-accuses-microsoft-of-blackmail-as-software-fees-jump-15/
2•robtherobber•16m ago•0 comments

Show HN: Using prediction margins to decide when to trust your classifier

https://jeffyclassify.com/blog/confidence-routing/
1•nico•16m ago•2 comments

How to Run Large-Scale Web Scraping Jobs

https://www.zenrows.com/blog/large-scale-web-scraping-zenrows-batch
2•adelekeabdulgan•17m ago•0 comments

Show HN: Loudwalk – Review your Anki deck out loud on a walk

https://loudwalk.com/?from=hn
3•cracadumi•18m ago•0 comments

Growing Trees

https://brashandplucky.com/2026/10/15/growing-trees.html
2•ibobev•19m ago•0 comments

Gaussian Splats part 3: There's always a bigger scene

https://www.magnopus.com/blog/gaussiansplats-part-3-theres-always-a-bigger-scene
1•ibobev•19m ago•0 comments

Don't throw it all away: Caching an immediate-mode UI

https://blickeditor.com/blog/caching-an-immediate-mode-ui
1•ibobev•19m ago•1 comments

Coxon Day

https://www.thenewcritic.com/p/coxon-day
1•gmays•19m ago•0 comments

Show HN: Turm.dev – Agent computers that are cheap, simple, and built in Europe

https://turm.dev
1•j-bu•20m ago•0 comments

Firecrawl Government and Legal Index

https://www.firecrawl.dev/gov-index
2•bluepeter•20m ago•0 comments