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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/

Bit Rot Doesn't Always Increase Entropy

https://bughunters.google.com/blog/bit-rot-doesnt-always-increase-entropy
1•ddos•51s ago•0 comments

Robert Crumb: from American counterculture to the French countryside

https://www.artbasel.com/news/robert-crumb-cartoonist-provence
1•Michelangelo11•1m ago•0 comments

Samsung to Refund 20% of All Purchases in South Korea in Onuri Gift Certificates

https://en.sedaily.com/finance/2026/06/05/samsung-to-refund-20-percent-of-purchases-in-onnuri-gift
1•Markoff•4m ago•1 comments

We Shipped a Feature in 2 Days That Was Scoped for a Week (Week 4 Friday Rou

https://theaileverageweekly.com/posts/how-we-shipped-a-feature-in-2-days-that-was-scoped-for-a-we...
1•talvardi7•5m ago•0 comments

Supply chain attack alert: .github/setup.js

1•antihero•6m ago•0 comments

A faster bump allocator for rust

https://owen.cafe/posts/stumpalo/
2•414owen•9m ago•0 comments

Show HN: Concord – Discord in Terminal

https://github.com/chojs23/concord
2•n3ozz•10m ago•0 comments

Pulling a New Proof from Knuth's Fixed-Point Printer

https://research.swtch.com/fp-knuth
1•KnuthIsGod•10m ago•0 comments

TSMC working hard to meet chip demand, would 'like' to hike prices

https://www.reuters.com/world/china/tsmc-boss-upbeat-outlook-ai-boom-shows-no-sign-easing-2026-06...
1•giuliomagnifico•11m ago•0 comments

Memory Still Matters in the Age of ChatGPT

https://www.dcaulfield.com/memorisation-chatgpt
1•cauliflower99•14m ago•0 comments

Japan proposes rebuilding ageing nuclear plants to meet power demand

https://www.reuters.com/business/energy/japan-plans-rebuild-ageing-nuclear-plants-boost-power-sup...
1•leonidasrup•17m ago•0 comments

Nikon D3200 IR Conversion

https://mitxela.com/projects/d3200_ir_conversion
1•Lunar5227•18m ago•0 comments

Chat is infinite scroll for work

https://www.dtlarson.com/thousand-prompts
2•derek-larson•18m ago•0 comments

Trump directs hundreds of millions of dollars to support coal

https://www.reuters.com/legal/litigation/trump-unveil-700-million-coal-support-plan-using-emergen...
3•leonidasrup•22m ago•1 comments

Show HN: Run Llama.cpp In-Process from Java with Project Panama FFM

https://deemwar-products.github.io/mochallama/
3•deemwar•23m ago•0 comments

Debris with telemetry: cybersecurity and Kessler syndrome

https://www.thespacereview.com/article/5234/1
1•fanf2•24m ago•0 comments

Anthropic Urges Global Pause in AI Development, Flags 'Self-Improvement' Risk

https://www.wsj.com/tech/ai/anthropic-urges-global-pause-in-ai-development-flags-self-improvement...
5•andsoitis•25m ago•2 comments

Show HN: CLI for scoring OpenAPI for LLM legibility

https://github.com/jentic/jentic-api-scorecard
3•seanblanchfield•30m ago•0 comments

Clodo (Not Claudo)

https://en.wikipedia.org/wiki/CLODO
1•largolagrande•31m ago•1 comments

XML and JSON in 2026

https://www.tbray.org/ongoing/When/202x/2026/06/01/XML-and-JSON-in-2026
1•protomolecool•31m ago•0 comments

Show HN: LLM memory without context bleed; 100% precision vs. <10% vector search

https://tenureai.dev/
2•decorner•32m ago•1 comments

Entanglement Builds Space-Time. Now "Magic" Gives It Gravity

https://www.quantamagazine.org/entanglement-builds-space-time-now-magic-gives-it-gravity-20260603/
4•rbanffy•32m ago•0 comments

Magnetometers Power GPS-Free Indoor Positioning

https://spectrum.ieee.org/magnetometers-hidonix-astranav-gps-alternative
1•rbanffy•33m ago•0 comments

Tracing a powerful GNSS interference source over Europe

https://arxiv.org/abs/2606.03673
2•mimorigasaka•34m ago•0 comments

Chip Capacity Constraints Put a Governor on AI Spending Growth

https://www.nextplatform.com/ai/2026/06/05/chip-capacity-constraints-put-a-governor-on-ai-spendin...
1•rbanffy•36m ago•0 comments

ChatBrief – A Chrome extension that summarises selected text locally

https://chromewebstore.google.com/detail/chatbrief/jogecipooebeilnfjknpcggojlcfpmig
1•banke1•36m ago•0 comments

Fastest known spinning star at 24% of c: PSR J1748−2446ad

https://en.wikipedia.org/wiki/PSR_J1748%E2%88%922446ad
1•basilikum•36m ago•0 comments

Built a desktop scraping tool that generates Playwright code for you-free beta

https://www.orchestra-automation.com/
1•oceandoughnut•40m ago•0 comments

Just Flip the Flag Broh

https://just-flip-the-flag-broh.tiiny.site
2•throwaway324041•41m ago•1 comments

ExamClock – Real-time synced exam timers for school exam halls

https://examclock.com
1•renatello•41m ago•1 comments