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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/

The MACL Extended Attribute

https://eclecticlight.co/2026/04/21/the-macl-extended-attribute/
1•frizlab•56s ago•0 comments

Mother Earth Mother Board

https://efdn.notion.site/Mother-Earth-Mother-Board-WIRED-a8ff97e460bc4ac1b4a7b87f3503a55c
1•thunderbong•2m ago•0 comments

US recession probabilities implied by the yield curve

https://www.stlouisfed.org/on-the-economy/2023/sep/what-probability-recession-message-yield-spreads
1•latentframe•7m ago•1 comments

Show HN: AnyHabit – A minimalist habit tracker for Raspberry Pi and Docker

https://github.com/Sparths/AnyHabit
1•bebedi•9m ago•0 comments

Highlights from Git 2.54

https://github.blog/open-source/git/highlights-from-git-2-54/
1•tux3•12m ago•0 comments

Enhancing Sporting Organisation Efficiency with Generative AI

https://sinankprn.com/posts/enhancing-sporting-organisation-efficiency-with-generative-ai/
1•sminchev•12m ago•0 comments

Reconstructing a Vue and Three.js app from a single Webpack bundle

1•YufanZhang•12m ago•0 comments

Show HN: Tiltbump – another game in a single HTML file

https://tiagosimoes.github.io/tiltbump/
1•eropatori•15m ago•0 comments

WebP to PNG Converter – Convert WebP to PNG Online Free

https://www.wps.com/tools/webp-to-png/
2•morganglow•20m ago•1 comments

AI agents are a security nightmare. Moving the dev workflow to QEMU

https://hozan23.com/posts/ai-security-nightmare/
1•hozan23•22m ago•0 comments

Kiss Principle

https://en.wikipedia.org/wiki/KISS_principle
1•edu•25m ago•0 comments

Pagetok – an all-in-one AI assistant on your Mac

https://pagetok.web.app/
1•loopstring•27m ago•0 comments

Strongest Phentermine for Women: What to Expect Before You Start

https://finance.yahoo.com/sectors/healthcare/articles/strongest-phentermine-alternatives-weight-l...
1•JoniThani•29m ago•0 comments

Show HN: TapFi – Join any WiFi just by scanning the details with your camera

https://tapfi.uno/
1•jmkni•35m ago•2 comments

Help Me with Multiverse OS

https://chatgpt.com/gg/v/69e7247e7e408196817bdce7534163a8?token=4gu4Y6NwS3xz3phbYpOpeA
1•liljoe•35m ago•0 comments

CC: A P2P Network for Reproducible Autoresearch Code Experiments

https://community.computer/
4•aiw1nt3rs•36m ago•0 comments

All your agents are going async

https://zknill.io/posts/all-your-agents-are-going-async/
2•zknill•36m ago•0 comments

The Anatomy of Tool Calling in LLMs: A Deep Dive

https://martinuke0.github.io/posts/2026-01-07-the-anatomy-of-tool-calling-in-llms-a-deep-dive/
1•tonyl•36m ago•0 comments

Xonsh shell 0.23 REFORGED – not just a release

https://github.com/xonsh/xonsh/releases/tag/0.23.0
1•combisearch•39m ago•1 comments

Show HN: DSS, a new human-readable and plain format for XLS and spreadsheets

https://github.com/Datastripes/DataSheetStandard/
1•vinserello•39m ago•0 comments

Show HN: OpenBridge – turn web chat access into an OpenAI-compatible endpoint

2•linuz•41m ago•0 comments

The Pirate Bay's Oldest Torrent Turned 22

https://torrentfreak.com/the-pirate-bays-oldest-torrent-turned-22/
4•franczesko•46m ago•0 comments

Heatwaves in the Indo-Gangetic Plains: Why Local Conditions Matter

https://www.iitb.ac.in/research-highlight/heatwaves-indo-gangetic-plains-why-local-land-and-atmos...
1•akbarnama•50m ago•0 comments

A Hot-Air Balloon Landed in a California Backyard. The Owner Says It's A '

https://www.wired.com/story/a-brief-interview-with-the-owner-of-the-hot-air-balloon-that-landed-i...
1•joozio•53m ago•0 comments

Less human AI agents, please

https://nial.se/blog/less-human-ai-agents-please/
17•nialse•57m ago•10 comments

Show HN: Alignear – Client communication layer for Linear teams

https://alignear.com/
4•madatbay•58m ago•1 comments

The Fencing Visualization System

https://bsky.app/profile/kcimc.bsky.social/post/3mjxchuwkzs2v
7•mariuz•1h ago•0 comments

Berea college makes tuition free with its endowment

https://www.theatlantic.com/education/archive/2018/10/how-berea-college-makes-tuition-free-with-i...
4•KnuthIsGod•1h ago•0 comments

Iran claims US backdoors knocked out networking equipment

https://www.theregister.com/2026/04/21/iran_claims_us_used_backdoors/
5•defrost•1h ago•1 comments

Writing Node.js Addons with .NET Native AOT

https://devblogs.microsoft.com/dotnet/writing-nodejs-addons-with-dotnet-native-aot/
3•soheilpro•1h ago•0 comments