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/

Geocentric Orrery

https://navlist.net/Geocentric-Orrery-TrammellH-jul-2026-g58762
1•helterskelter•1m ago•0 comments

California's winery shakedown tests limits of free speech, association

https://nypost.com/2026/07/05/us-news/californias-winery-shakedown-tests-limits-of-free-speech-as...
1•SilverElfin•4m ago•0 comments

As Amazon lets Mechanical Turk fade, Mercor hits a $2B gross run rate

https://runtimewire.com/article/as-amazon-lets-mechanical-turk-fade-mercor-hits-a-2-billion-gross...
1•ryanmerket•4m ago•0 comments

Show HN: Built multi-hop passenger transfer routing for a browser train SIM

https://overlandgame.netlify.app/
1•aashishharishch•5m ago•1 comments

JadePuffer ransomware used AI agent to automate attack

https://www.bleepingcomputer.com/news/security/jadepuffer-ransomware-used-ai-agent-to-automate-en...
3•devonnull•5m ago•0 comments

list55.com: Simple transcription: Microsoft's MAI 1.5 model as a web app

https://list55.enzom.dev/
1•emadda•7m ago•1 comments

Chat Control 1.0 vs. 2.0

https://fightchatcontrol.eu/chat-control-overview
1•latexr•8m ago•0 comments

Even banks and hyperscalers are now sounding the alarm about the AI bubble

https://www.theregister.com/ai-and-ml/2026/07/06/even-banks-and-hyperscalers-are-now-sounding-the...
1•andsoitis•13m ago•0 comments

Show HN: Branchless-nccl-router ver.JAX (GPUs cannot rest)

https://github.com/PJHkorea/branchless-nccl-router
1•PJHkorea•14m ago•1 comments

Shift: Sustainable Technology. With Love. From Germany

https://www.shift.eco/en/
3•doener•14m ago•1 comments

Safer-dependencies claudecode skillpack to secure dependencies during developmnt

https://github.com/robert-auger/safer-dependencies
1•zenomorph•19m ago•1 comments

Sorry, A.I. Is Not Giving Us a Four-Day Workweek

https://www.nytimes.com/2026/07/06/opinion/ai-four-day-work-week-office.html
1•malloryerik•20m ago•0 comments

The Fourth Root Complexity of Data Movement

https://arxiv.org/abs/2606.30948
1•Jimmc414•21m ago•0 comments

Huawei Mate 90 series reportedly to feature new Kirin 2026 chip based on τ Law

https://technode.com/2026/07/06/huawei-mate-90-series-reportedly-to-feature-new-kirin-2026-chip-b...
1•yogthos•25m ago•0 comments

Beamforming

https://en.wikipedia.org/wiki/Beamforming
1•metadat•26m ago•0 comments

Anti-vaccers are fundamentally wrong about placebo-controlled trials

https://thelogicofscience.com/2026/07/06/anti-vaccers-are-fundamentally-wrong-about-placebo-contr...
3•bediger4000•27m ago•1 comments

Alternate Clock Designs and Time Systems

https://serialc.github.io/altClocks/
3•ethanpil•28m ago•0 comments

AI: The ROI Runway Could Be Long Outside the Tech Sector

https://www.apollo.com/wealth/insights-news/insights/daily-spark/ai-the-roi-runway-could-be-long-...
2•u1hcw9nx•28m ago•0 comments

Town Square Is a Beautiful Experiment

https://blakehouseholder.substack.com/p/town-square-is-a-beautiful-experiment
1•blake8086•28m ago•0 comments

Show HN: Otari: your open-source LLM control plane

https://github.com/mozilla-ai/otari
1•angpt•29m ago•0 comments

The Margin: a spoiler-aware wiki that self-updates as you read

https://worldfall.ink/margin/
1•pfwitt•29m ago•0 comments

Apollo economist says a 'painful repricing' of AI markets is possible

https://fortune.com/2026/07/06/ai-productivity-gains-bubble-painful-repricing-markets-torsten-slok/
1•u1hcw9nx•29m ago•0 comments

Taiganet.com, Home of the WS4000 Simulator

https://www.taiganet.com/
2•Aloha•31m ago•0 comments

Majority of id software to be laid off by Microsoft

https://bsky.app/profile/dark1x.bsky.social/post/3mpyugwk5yc27
6•LarsDu88•31m ago•4 comments

How HN: Sopsy – Commit encrypted secrets to Git, decrypt with Touch ID

https://sopsy-cli.dev/
1•kigster•33m ago•0 comments

The Master's Daughter- a novel about diffusion of technology and societal change

https://worldfall.ink/read/act-1/
1•pfwitt•33m ago•0 comments

OpenURMA: A Clean-Room Open Implementation of the Unified Bus Protocol

https://arxiv.org/abs/2605.28717
1•jimyl•33m ago•0 comments

Why does Chicago use Comic Sans on some elevator inspection certificates?

https://chicago.suntimes.com/2026/06/03/why-does-chicago-use-comic-sans-on-some-elevator-inspecti...
1•mattas•34m ago•0 comments

Welcome to the Luxury City Built by Taiwan's A.I. Boom

https://www.nytimes.com/2026/06/24/business/taiwan-chips-boom.html
1•reaperducer•36m ago•0 comments

DOGE Shrank the Payroll, Not the Deficit

https://rubbishtalk.com/economy/doge-shrank-the-payroll-not-the-deficit/
4•zaik•36m ago•0 comments