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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/

A Concurrent Language for Non-Concurrent Software (2010)

https://prog21.dadgum.com/81.html
1•mooreds•54s ago•0 comments

Wslc: A native Linux container runtime for Windows

https://www.boxofcables.dev/wslc-a-native-linux-container-runtime-for-windows/
1•m3h•2m ago•0 comments

Miracle on Everest: Guide believed dead spotted crawling down ice

https://www.bbc.com/news/articles/cvgz2yjl4y3o
1•koolhead17•3m ago•0 comments

Here.now: Free, Instant web hosting for agents

https://here.now
1•kamphey•4m ago•0 comments

'World-first' vaccine designed by artificial intelligence

https://www.bbc.com/news/articles/crrpggegwe0o
1•sizzle•6m ago•0 comments

Form design: from zero to hero all in one blog post

https://adamsilver.io/blog/form-design-from-zero-to-hero-all-in-one-blog-post/
1•thunderbong•8m ago•0 comments

CEO to staff: You're not getting a raise. We're spending on AI instead

https://www.businessinsider.com/teradata-pauses-raises-employee-compensation-ai-budget-2026-6
3•ValentineC•8m ago•0 comments

Bad MCP design cost your Agent 5× more tokens

2•JohnnyZhang483•9m ago•0 comments

Delacroix's Entry of the Crusaders into Constantinople Restored

https://www.louvre.fr/en/explore/life-at-the-museum/delacroix-s-entry-of-the-crusaders-into-const...
1•rawgabbit•14m ago•0 comments

Fedora 43 Upgrade revealed 20 years old Outlook Security Bug

https://fedoramagazine.org/fedora-43-upgrade-revealed-20-years-old-outlook-security-bug/
2•byproxy•16m ago•0 comments

H-1B Crackdown on Indian Workers Erodes a Texas Real Estate Boom

https://www.bloomberg.com/features/2026-dallas-h1b-housing-market/
3•sizzle•16m ago•0 comments

OPRD: On-Policy Representation Distillation

https://arxiv.org/abs/2606.06021
1•berlianta•18m ago•0 comments

What We Believe Happened: A Summary Timeline of Bricks and Minifigs Store

https://bricksandminifigs.com/blog/blog/2026/06/04/bricks-and-minifigs-salem-store-timeline/
2•momentmaker•19m ago•0 comments

Verifying Agentic Development at Scale

https://twitter.com/ido_pesok/status/2060416230641881336
1•gmays•20m ago•0 comments

It's not how much it rose, but how fast

https://www.ooooo.law/board/8?lang=en
1•haebom•22m ago•0 comments

Ask HN: Are people vibe coding internal tools at your companies?

2•yakkomajuri•23m ago•1 comments

Can These Ads Make You Love A.I.?

https://www.nytimes.com/2026/06/04/style/chatgpt-advertising-campaign-artificial-intelligence.html
1•1vuio0pswjnm7•26m ago•0 comments

Quantum Odyssey

https://store.steampowered.com/app/2802710/Quantum_Odyssey/
1•rglover•27m ago•0 comments

JPMorgan, Citi and Big Banks Plan New Tokenized Deposit System to Answer Crypto

https://www.wsj.com/finance/banking/jpmorgan-citi-and-big-banks-plan-new-tokenized-deposit-system...
1•petethomas•27m ago•0 comments

OpenAI's Codex chained decade-old DoS attacks to crash web servers

https://www.theregister.com/security/2026/06/04/openais-codex-chains-decade-old-dos-techniques-in...
1•sbulaev•28m ago•0 comments

Bitcoin weathering ugliest week in months as narrative fades, liquidity rotates

https://www.cnbc.com/2026/06/04/bitcoin-is-weathering-its-ugliest-week-in-months-as-narrative-fad...
5•1vuio0pswjnm7•28m ago•2 comments

Zephir: PHP Extension Language

https://zephir-lang.com/en
1•nvahalik•30m ago•0 comments

Show HN: Tatami – a macOS workspace manager with BSP tiling

https://github.com/PangMo5/Tatami
1•pangmo5•32m ago•0 comments

Aisop – Define AI agent workflows as Mermaid or JSON flow graphs

https://github.com/AIXP-Labs/AISOP
1•aisop•35m ago•0 comments

A Vector Lakebase is all you need for all AI workloads

https://zilliz.com/blog/from-vector-database-to-vector-lakebase
1•Fendy•42m ago•0 comments

Reverse Engineering Crazy Taxi part 3

https://wretched.computer//post/crazytaxi3
2•chunkles•44m ago•0 comments

US Tech Sector Announces Most Job Cuts in Nearly Two Years

https://www.bloomberg.com/news/articles/2026-06-04/us-tech-sector-announces-most-job-cuts-in-near...
4•1vuio0pswjnm7•45m ago•1 comments

Benchmarking The BORE Scheduler Performance With CachyOS Linux

https://www.phoronix.com/review/cachyos-bore
1•Bender•47m ago•0 comments

Department of Energy Celebrates First Advanced Reactor Criticality

https://www.energy.gov/articles/department-energy-celebrates-first-advanced-reactor-criticality
1•acidburnNSA•54m ago•0 comments

Smart drug strips cancer cells of 'invisibility cloak' can shrink tumours 30%

https://www.theguardian.com/society/2026/jun/01/cancer-smart-drug-cells-invisibility-cloak-shrink...
7•gmays•57m ago•0 comments