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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/

PaywallPro

https://www.paywallpro.app/
1•candyyao•56s ago•0 comments

Ed Gutenburg: The First Autonomous Investigative Reporter

https://alec.is/posts/worlds-first-fully-autonomous-investigative-reporter-ai-agent/
1•arm32•1m ago•0 comments

Show HN: Giggles – A batteries-included React framework for TUIs

https://github.com/zion-off/giggles
2•ajz317•3m ago•0 comments

Curl documentation bans the word 'very'

https://mastodon.social/@bagder/116161776616642292
2•keyboardJones•4m ago•0 comments

Building an Open-Source Verilog Simulator with AI: 580K Lines in 43 Days

https://normalcomputing.com/blog/building-an-open-source-verilog-simulator-with-ai-580k-lines-in-...
1•matt_d•4m ago•0 comments

Iran's Cryptic Shortwave Messages [video]

https://www.youtube.com/watch?v=ErmbTpxAM7Q
1•bane•5m ago•0 comments

Entry-level PC market to 'disappear' by 2028 – memory prices strain PC market

https://www.tomshardware.com/tech-industry/rising-memory-prices-pile-more-strain-on-consumer-pc-m...
3•ivewonyoung•7m ago•0 comments

How to Recover Your Stolen Crypto After a Scam–Guidance from Intelligence Wizard

1•Petersrobert•8m ago•0 comments

Show HN: Autonoma – Python secret fixer that refuses unsafe fixes

https://github.com/VihaanInnovations/autonoma
1•v_CodeSentinal•8m ago•0 comments

The Excommunicated Devs Making Games with AI

https://www.tyleo.com/blog/the-excommunicated-devs-making-games-with-ai
3•tyleo•13m ago•0 comments

Ask HN: What Online LLM / Chat do you use?

3•ddxv•17m ago•0 comments

CKAN – an open-source DMS (data management system)

https://ckan.org/
3•gjvc•21m ago•1 comments

My (Hypothetical) SRECon26 Keynote

https://charity.wtf/2026/03/03/my-hypothetical-srecon26-keynote-xpost/
2•donutshop•24m ago•0 comments

Prompt Vault – Save and organize your AI prompts ($9 Pro)

https://prompt-vault-sage.vercel.app
2•VyperandUltron•24m ago•0 comments

Show HN: An Auditable Decision Engine for AI Systems

https://maelstrom.ghostlogic.tech
2•adamscottthomas•27m ago•0 comments

How to Recover Your Stolen Crypto After a Scam–Guidance from Intelligence Wizard

2•Petersrobert•30m ago•0 comments

Do AI Agents Make Money in 2026? Or Is It Just Mac Minis and Vibes?

https://www.siliconsnark.com/do-ai-agents-actually-make-money-in-2026-or-is-it-just-mac-minis-and...
4•SaaSasaurus•30m ago•0 comments

Underground Salt Caverns Are Preserving Our History

https://eos.org/features/salt-of-the-earth-vast-underground-salt-caverns-are-preserving-our-histo...
2•sohkamyung•31m ago•0 comments

One-Stop Wan AI Video and Image Generator Platform

https://towan.net/
2•seagnson•32m ago•1 comments

Show HN: Ask Mob

https://mob.army/
2•cc-d•39m ago•0 comments

Show HN: A Kotlin Multiplatform app that works on watch, CLI, browser extension

https://arnav.tech/architecting-twofac-my-journey-into-kotlin-multiplatform-module-structure
2•championswimmer•39m ago•0 comments

NY bill would prohibit AI chatbots from giving legal advice

https://twitter.com/RobertFreundLaw/status/2028550955386704285
5•timr•41m ago•0 comments

Show HN: Generate random, valid US residential addresses for testing

https://meiguodz.com
3•roookiecookie•43m ago•0 comments

Unbound Video AI is the most unrestricted AI video tool I've tried in 2026

https://unbound.video
3•gabrieln•45m ago•1 comments

A timeline of cyber attacks:home users, contractors, and SMBs are now targets

3•EricAUS•47m ago•0 comments

Iran unleashes Shahed drones aimed at targets across Middle East

https://www.theguardian.com/world/2026/mar/02/iran-unleashes-hundreds-of-drones-aimed-at-targets-...
15•0in•48m ago•4 comments

Shutting down, open sourced private AI document server

https://github.com/queryhat/super-hat
4•chhetri978•50m ago•4 comments

Zuckerberg's internal emails rendered as Facebook Messenger

https://zuckmail.vercel.app/
36•not-chatgpt•51m ago•2 comments

Daily LNG freight rates jump over 40% amid Mideast strikes

https://www.reuters.com/business/energy/daily-lng-freight-rates-jump-over-40-amid-mideast-strikes...
6•geox•52m ago•0 comments

Solar Time vs. Standard Time heat map chart

https://blog.poormansmath.net/images/SolarTimeVsStandardTime.png
3•ivewonyoung•53m ago•0 comments