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Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•11mo ago

Comments

trane_project•11mo 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/

Unified macOS service console for launchd and Homebrew

https://github.com/sderosiaux/launchdeck
1•chtefi•54s ago•1 comments

A Desktop Made for One

https://isene.org/2026/05/Audience-of-One.html
1•xngbuilds•2m ago•0 comments

Show HN: Llmconfig – configfile and CLI for local LLM

https://github.com/kiliczsh/llmconfig
1•kilic•2m ago•0 comments

Rust-Coreutils Security Audit Report by Zellic [pdf]

https://github.com/Zellic/publications/blob/master/uutils%20coreutils%20-%20Zellic%20Audit%20Repo...
1•csmantle•5m ago•0 comments

OTRv4 Post-quantum IRC that runs on a phone over I2P/Tor/TLS

https://github.com/muc111/OTRv4Plus
1•muc111•5m ago•0 comments

Wiki Builder: Skill to Build LLM Knowledge Bases

https://academy.dair.ai/blog/wiki-builder-claude-code-plugin
1•omarsar•5m ago•0 comments

Xero.DataComparer – High-performance generic list comparator for .NET

https://github.com/ybouha/Xero.DataComparer
1•ybouha•6m ago•0 comments

Research suggests that dinosaurs may have influenced how human beings age

https://phys.org/news/2023-11-longevity-bottleneck-hypothesis-dinosaurs-human.html
1•amichail•7m ago•0 comments

Stock Indexes Are Contorting Themselves to Include SpaceX and OpenAI

https://www.wsj.com/finance/stocks/stock-indexes-are-contorting-themselves-to-include-spacex-and-...
1•dbalatero•8m ago•0 comments

Testssl.sh: checks a server's service on any port for the support of TLS ciphers

https://github.com/testssl/testssl.sh
1•Bender•11m ago•0 comments

5 years of freelancing: same work, better pay, and a ceiling

https://dylancastillo.co/posts/5-years-freelancing-in-europe.html
3•dcastm•14m ago•0 comments

A handy bash function to convert a video to a GIF

https://gist.github.com/Olshansk/8046a7bfff7c82aca67d961d4d3d1d1a
1•Bender•16m ago•0 comments

Yann LeCun's Billion Dollar Bet [video]

https://www.youtube.com/watch?v=kYkIdXwW2AE
1•rohitpaulk•16m ago•0 comments

Foxconn launches second-generation satellites via SpaceX Falcon 9

https://www.reuters.com/science/foxconn-launches-second-generation-satellites-via-spacex-falcon-9...
1•saikatsg•17m ago•0 comments

Anika Wells rewrote social media ban days before lodging legal defence

https://www.afr.com/companies/media-and-marketing/anika-wells-rewrote-social-media-ban-days-befor...
1•01-_-•17m ago•0 comments

Why PayPal Only Does the Last Mile-We Built the Card Reader, We Forgot the Store

https://normalphd.substack.com/p/why-paypal-only-does-the-last-mile
1•dooku0721•19m ago•0 comments

AI deleted my most tests, and said "All Tests Pass"

https://typia.io/blog/ai-deleted-my-tests-and-said-all-tests-pass/
3•autobe•19m ago•1 comments

Scientists Develop Bioengineered Chewing Gum That Could Help Fight Oral Cancer

https://scitechdaily.com/scientists-develop-bioengineered-chewing-gum-that-could-help-fight-oral-...
1•01-_-•20m ago•0 comments

Measure Solar Radiation&Heat Flux Without Expensive Hardware, Using Soft-Sensing

https://ieeexplore.ieee.org/document/11476295
1•iopoer•23m ago•0 comments

The AI Revolution Hollywood Feared Is Happening – In India

https://www.hollywoodreporter.com/business/digital/india-ai-filmmaking-1236548136/
2•thunderbong•26m ago•1 comments

Business Owners Are Worst Clients

https://zencapital.substack.com/p/business-owners-are-worst-clients
14•zenincognito•28m ago•5 comments

US Power Investment Is at Record Highs, Driven by a Solar and Battery Boom

https://www.apricitas.io/p/americas-electricity-gap
1•m-hodges•28m ago•0 comments

How to Run Any LLM in Claude Cowork and Claude Code

https://www.productcompass.pm/p/cowork-on-3p-any-llm
3•Anon84•29m ago•0 comments

Boolean logic operators are not intuitive. Let's do better

https://charon.konekopi.com/posts/boolean_logic_naming/
1•Charon77•29m ago•0 comments

Pgxbackup: Continuity Support for PgBackRest

https://thebuild.com/blog/2026/05/01/pgxbackup-continuity-support-for-pgbackrest/
2•EvanAnderson•29m ago•0 comments

VulkanForge – 14 MB Vulkan LLM engine that runs native FP8 models on AMD (Rust)

https://github.com/maeddesg/vulkanforge
1•maeddesg•30m ago•0 comments

Show HN: Semble – Code search for agents that uses 98% fewer tokens than grep

https://github.com/MinishLab/semble
3•stephantul•32m ago•0 comments

Why Andy Serkis Turned 'Animal Farm' into a Family Film–and What It Teaches Kids

https://www.parents.com/animal-farm-movie-for-kids-11961291
2•rawgabbit•35m ago•0 comments

Show HN: Subscribe to RSS Feeds on Kindle

https://www.rsstokindle.com/
1•nartam11•35m ago•0 comments

An HIV/AIDS tragedy spurred human evolution

https://www.science.org/content/article/how-hiv-aids-tragedy-spurred-human-evolution
3•gmays•37m ago•0 comments