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Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•9mo ago

Comments

trane_project•9mo 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/

Show HN: I built a browser-based image comparison tool for subtle differences

https://picdiff.dev/
1•lazycat_•42s ago•0 comments

Anthropic says company 'cannot in good conscience accede' to Pentagon's demands

https://apnews.com/article/anthropic-ai-pentagon-hegseth-dario-amodei-9b28dda41bdb52b6a378fa9fc80...
1•geox•48s ago•0 comments

I vibe coded and I have feelings about it

https://blog.coolapso.sh/en/posts/ivibecoded/
1•coolapso•1m ago•0 comments

Viewert – The One App for Prompt Notes

https://www.viewert.com
1•Sunrostern•1m ago•0 comments

Tesla touts California robotaxis but does nothing to get permits

https://www.reuters.com/business/autos-transportation/musk-touts-california-robotaxis-tesla-does-...
1•JumpCrisscross•1m ago•1 comments

The Lobotomy Ultimatum: What happens when a Government removes an AI's morals

https://greggbayesbrown.substack.com/p/the-lobotomy-ultimatum-what-happens
1•superfluous_g•4m ago•0 comments

Show HN: Free app to track countries you've travelled to

https://apps.apple.com/no/app/voyage-track-your-journey/id6758411779
1•anmols99•4m ago•0 comments

Show HN: AgentMint – signed tokens proving a human approved an agent action

https://github.com/aniketh-maddipati/agentmint
1•asmhacker•4m ago•1 comments

Netflix drops out of bidding after WBD deems Paramount's takeover bid 'superior'

https://www.cnn.com/2026/02/26/media/netflix-ted-sarandos-trump-white-house-paramount-wbd
1•gok•5m ago•0 comments

Brave New Smart Phone Dependence World and Google Support

1•bar_de•6m ago•0 comments

Netflix Declines to Raise Offer for Warner Bros

https://ir.netflix.net/investor-news-and-events/financial-releases/press-release-details/2026/Net...
3•doener•8m ago•0 comments

RSS Guard v5.0.0

https://github.com/martinrotter/rssguard/releases/tag/5.0.0
1•thombles•8m ago•0 comments

Paramount Wins Bidding War for Warner Discovery as Netflix Drops Out

https://www.wsj.com/business/media/warner-discovery-says-paramounts-latest-bid-is-superior-to-net...
3•jaredwiener•10m ago•1 comments

A Phase-Ordered Pre-Geometric Projection Framework (Physics)

1•RichOnFire•12m ago•0 comments

The Living Context Workflow: Keep agents oriented across every session

https://p10q.com/presentations/agents_md_workflow/
1•tmsh•12m ago•0 comments

Jack Dorsey's Block to cut nearly 1/2 its workforce in AI overhaul, shares surge

https://www.reuters.com/business/blocks-fourth-quarter-profit-rises-announces-over-4000-job-cuts-...
3•petethomas•15m ago•0 comments

Unlinkable Inference as a User Privacy Architecture

https://openanonymity.ai/blog/unlinkable-inference/
1•jhalderm•15m ago•0 comments

Long Horizon Tasks with Codex

https://developers.openai.com/cookbook/examples/codex/long_horizon_tasks/
1•gmays•16m ago•0 comments

AirSnitch: Demystifying and Breaking Client Isolation in Wi-Fi Networks

https://github.com/vanhoefm/airsnitch
2•rendx•16m ago•0 comments

The Future Is AI's Proof of Work

https://backalleycoder.com/posts/the-future-is-ai-proof-of-work/
3•csuwldcat•16m ago•0 comments

A Reality Alignment Index: Measuring When AI and Systems Lose Meaning [pdf]

https://offbrandguy.com/wp-content/uploads/2026/02/drift-fidelity-index-reality-alignment-framewo...
1•realitydrift•17m ago•1 comments

Making PyTorch –> Qualcomm NPUs less treacherous

https://www.muna.ai/blog/qualcomm-npu
1•olokobayusuf•19m ago•1 comments

Open-Source LLMs in 2026: A Complete Guide for AI Developers

https://vertu.com/ar/%d9%86%d9%85%d8%b7-%d8%a7%d9%84%d8%ad%d9%8a%d8%a7%d8%a9/the-best-open-source...
1•rurban•20m ago•0 comments

Kurt Gödel's Brilliant Madness

https://www.cantorsparadise.com/kurt-g%C3%B6dels-brilliant-madness-84288dd96eda
1•tzury•20m ago•0 comments

ChatGPT made Flappy Bird for Atari 2600 by writing byte code directly

https://twitter.com/lisperati/status/2026500894905479584
1•smusamashah•21m ago•1 comments

A leaked roster of 2,200 Bohemian Grove members

https://sfstandard.com/2026/02/25/new-illuminati-list-just-dropped-leaked-roster-2-200-bohemian-g...
2•billfor•22m ago•1 comments

Reappraisal of paths to decarbonising British electricity generation in 2030

https://iopscience.iop.org/article/10.1088/2753-3751/ae4235
1•PaulHoule•22m ago•0 comments

The Open Anonymity Project

https://openanonymity.ai/
1•jhalderm•25m ago•0 comments

Show HN: I built a minimal file organizer CLI and underestimated filesystem case

https://github.com/ChristianRincon/auto-organize
1•chris-corner•25m ago•0 comments

Claude Code Memory

https://code.claude.com/docs/en/memory
2•mfiguiere•26m ago•1 comments