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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/

Training-Free Single-Image Diffusion Models

https://haojunqiu.github.io/efficient-SID/
1•E-Reverance•3m ago•0 comments

Safe Made Easy Pt.1: Single Ownership Is (Not) Optional

https://ergeysay.me/safe-made-easy-pt1.html
1•birdculture•4m ago•0 comments

How Artemis II livestreamed hi-def videos and images from the moon to Earth

https://news.mit.edu/2026/how-artemis-ii-livestreamed-hi-def-videos-images-from-moon-to-earth-0605
1•gnabgib•8m ago•0 comments

Show HN: Honest Privacy Policies – We Read the Fine Print So You Don't Have To

https://honestprivacypolicies.org/
1•LuD1161•13m ago•0 comments

I built a music suite to replace five apps, all in one and free (Tauri/Rust)

https://github.com/EgleAudioSuite/egle/releases/tag/v1.1.0
1•EgleAudio•14m ago•0 comments

Show HN: I created a RAW to HDRI stacker in (mostly) Common Lisp

https://github.com/IBL-tools/rawtohdri
1•aaronestrada•14m ago•0 comments

Microsoft wants users to be addicted to Scout, their AI personal assistant

https://disassociated.com/microsoft-users-addicted-ai-personal-assistant/
2•berlianta•18m ago•0 comments

A floating solar plant using vertical panels

https://www.vozpopuli.com/indux/en/a-floating-solar-plant-using-vertical-panels-is-flipping-the-u...
2•e2e4•19m ago•1 comments

HRM-Text: Efficient Pretraining Beyond Scaling

https://arxiv.org/abs/2605.20613
1•cubefox•19m ago•0 comments

A Framework for Confident Model Migration in Production Systems

https://arxiv.org/abs/2604.27082
1•PaulHoule•21m ago•0 comments

Hermes Agent – Open-Source AI Agent with Persistent Memory

https://hermes-agent.org/
2•SeriousM•22m ago•0 comments

Do links hurt news publishers on Twitter? Our analysis suggests yes

https://www.niemanlab.org/2026/04/do-links-hurt-news-publishers-on-twitter-our-analysis-suggests-...
1•erickhill•22m ago•0 comments

Show HN: Fluenta – validate a business idea against 6 live demand signals

https://fluenta.space
1•OlegIvanov•23m ago•0 comments

Show HN: Idea-to-build – a workflow that challenges ideas before building

https://github.com/winchxyz/idea-to-build
1•winchxyz•24m ago•0 comments

Software, Philosophy, and Skepticism (2025)

https://www.natemeyvis.com/software-philosophy-and-skepticism/
1•3willows•25m ago•0 comments

Better to Best Research Hub Launches Simulation

https://bettertobest.github.io/compassionism-simulation/
1•BetterToBest•26m ago•1 comments

Is It Really FOSS?

https://isitreallyfoss.com/?
2•Velocifyer•27m ago•0 comments

Why I Won't Debate Critics of Israel

https://samharris.substack.com/p/why-i-wont-debate-critics-of-israel
2•mhb•29m ago•3 comments

Boeing 787 Dreamliner Loses Door at Remote Pacific Airport, Puzzling Engineers

https://aeroxplorer.com/articles/boeing-787-dreamliner-loses-door-at-remote-pacific-airport-puzzl...
1•lostlogin•29m ago•0 comments

SpaceX must wait a year to be part of S&P 500

https://www.msn.com/en-us/money/top-stocks/spacex-must-wait-a-year-to-be-part-of-s-p-500-the-rule...
3•Anon84•30m ago•0 comments

The biggest tell that something was written by AI

https://www.theatlantic.com/technology/2026/05/how-to-tell-ai-writing/687345/
1•bookofjoe•31m ago•0 comments

Trump administration, OpenAI discussing possible government stake in the startup

https://www.cnbc.com/2026/06/05/trump-open-ai-altman-stake.html
3•mayneack•33m ago•0 comments

Multi-Layer Policy for Securing AI Agents

https://www.tigera.io/blog/multi-layer-policy-for-securing-ai-agents/
1•baroiall•34m ago•1 comments

The Irishman raising millions to fund journalists reporting on rise of AI

https://www.independent.ie/business/irish-business/meet-the-irishman-raising-millions-to-fund-jou...
3•rbanffy•35m ago•0 comments

Port React Compiler to Rust

https://github.com/facebook/react/pull/36173
2•nhatcher•35m ago•1 comments

Things I wish I had been taught about coding agents for engineering

https://blog.owulveryck.info/2026/06/04/see-act-correct-three-levers-for-working-with-a-code-agen...
2•owulveryck•39m ago•0 comments

Warren's Abstract Machine: A Tutorial Reconstruction

https://github.com/a-yiorgos/wambook
3•nextos•39m ago•0 comments

401K and Megaback Door Calculator

https://mega-backdoor-401k-calculator.pages.dev
2•John23832•40m ago•1 comments

Do You Really Want That Computer-Science Degree?

https://www.economist.com/graphic-detail/2026/06/01/do-you-really-want-that-computer-science-degree
3•karakoram•44m ago•2 comments

PR: Banana as an official unit in Python pint package

https://github.com/hgrecco/pint/pull/2316
2•vojtamolda•44m ago•1 comments