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Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•10mo ago

Comments

trane_project•10mo 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/

Cybersecurity stocks fall on report Anthropic is testing a powerful new model

https://www.cnbc.com/2026/03/27/anthropic-cybersecurity-stocks-ai-mythos.html
1•pseudolus•2m ago•0 comments

Forensic Scientist Dr. Henry C. Lee Dies

https://www.newhaven.edu/news/releases/2026/in-memoriam-henry-lee.php
1•caonidaye•2m ago•0 comments

How much more will oil prices have to go up?

https://marginalrevolution.com/marginalrevolution/2026/03/how-much-more-will-oil-prices-have-to-g...
1•paulpauper•3m ago•0 comments

Iranian hackers obtained and leaked personal Gmail of ex-FBI Director Cash Patel [video]

https://www.youtube.com/watch?v=AlM0vylK_r8
1•exec01•6m ago•0 comments

Brent Price Now – Free AI oil market insights and email price alerts

https://brentpricenow.top/price-alerts
1•trendbuilder•6m ago•0 comments

The Terrarium

https://www.lesswrong.com/posts/znbfRXHq285nS7NAh/the-terrarium
2•cubefox•11m ago•0 comments

Brad Feld – Nothing New to See Here

https://feld.com/archives/2026/03/nothing-new-to-see-here/
1•rmason•13m ago•0 comments

Whisper AI Local Mac Setup

https://www.yaps.ai/blog/whisper-ai-local-mac-setup
1•RichAwo•14m ago•0 comments

What If Your TV Keyboard Disabled Impossible Letters?

https://www.joey.fyi/blog/tv-search-keyboard
2•rpst•14m ago•1 comments

GitHub has been sending me one email per second. For two days.

1•colonelspace•15m ago•0 comments

Iran Is Not Venezuela – and Nobody in the White House Seems to Know That

https://pharaoh-mina-newsletter.beehiiv.com/p/iran-is-not-venezuela-and-nobody-in-the-white-house...
2•ndsipa_pomu•18m ago•1 comments

Don't YOLO your file system

https://jai.scs.stanford.edu/
1•mazieres•19m ago•1 comments

Turning multiple Claude Code sessions into a peer to peer network

https://github.com/prassanna-ravishankar/repowire
1•nomadic-coder•20m ago•1 comments

Drone Warfare Has Come to the United States

https://nationalinterest.org/feature/drone-warfare-has-come-to-the-united-states
3•davikr•21m ago•0 comments

/Jailbreak-University Codex/Claude Code Skills to Jailbreak College

https://github.com/jdcampolargo/jailbreak-university
1•jdcampolargo•24m ago•0 comments

Apple have begun bricking my phone

1•stevelini•29m ago•2 comments

Modern Loki – C++20 port of Alexandrescu's design patterns library

https://github.com/skillman1337/modern-loki
1•skillman1337•29m ago•0 comments

Grieving Parents in Iran Spend Night at Children Graves, Killed by U.S. Strike

https://www.dropsitenews.com/p/minab-iran-elementary-school-airstrike-cemetery-families
2•orsenthil•31m ago•0 comments

Major outgoing CEOs are citing AI as a factor in their decisions to step down

https://www.cnbc.com/2026/03/26/coca-cola-james-quincey-walmart-doug-mcmillon-artificial-intellig...
1•cebert•31m ago•0 comments

How I setup Azure for new software projects

https://www.processfoundry.io/insights/how-i-setup-azure-to-deploy-microservices
1•christian-scott•36m ago•0 comments

HN: Claud-y – an animated desktop companion that reacts to your coding sessions

https://github.com/eali959/claudy/releases/tag/v1.0.0
1•ealiii•42m ago•0 comments

A Field‑Grade Architecture for the Next Century of Energy and Infrastructure"

https://wes-core-grid.base44.app
2•wesley-Alan•43m ago•0 comments

The Prompt Is the Program

https://aifoc.us/prompt-is-the-program/
2•kinlan•45m ago•0 comments

Show HN: Interactive recursive tool that warps what traditional consultants do

https://recursive.systems/
2•rgunther•48m ago•0 comments

How the illegal market for buying and selling personal data on Telegram works

https://english.elpais.com/international/women-leaders-of-latin-america/2026-03-27/this-is-how-th...
1•c420•49m ago•0 comments

Klode has been systematically stripping features from GRUB since 2021

https://www.sambent.com/canonicals-grub-saboteur-has-a-10-year-plan/
1•felineflock•54m ago•1 comments

Speech on the situation in the Near and Middle East [video]

https://www.youtube.com/watch?v=FXPD6bjrlXg
1•hkhn•55m ago•0 comments

Going Founder Mode on Cancer

https://centuryofbio.com/p/sid
1•nextos•55m ago•1 comments

Tribe v2:A Foundation Model for How the Human Brain Processes Complex Stimuli

https://ai.meta.com/blog/tribe-v2-brain-predictive-foundation-model/?_fb_noscript=1
3•justaregulardev•55m ago•0 comments

The theory and practice of plug-in solar

https://pv-magazine-usa.com/2026/03/27/the-theory-and-practice-of-plug-in-solar/
3•jer0me•1h ago•0 comments