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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/

Artifacts dating back 400k years, found in cave, show 'complex and rich'

https://www.cnn.com/2026/06/29/science/israel-prehistoric-cave-scli-intl
1•Bender•1m ago•0 comments

Old vs. New Chevy Blazer Crash Test Shows How Much Safety Has Improved

https://www.thedrive.com/news/1996-vs-2026-chevy-blazer-crash-test-shows-how-much-safety-has-impr...
1•superzero11•2m ago•0 comments

Kalshi sues Illinois over new tax on prediction market sports bets

https://arstechnica.com/tech-policy/2026/06/kalshi-sues-illinois-over-new-tax-on-prediction-marke...
1•Bender•2m ago•0 comments

Firefly Aerospace Operates Nvidia Jetson in Lunar Orbit for First Time

https://www.narracomm.com/firefly-aerospace-successfully-operates-nvidia-jetson-in-lunar-orbit-fo...
2•thelonelyborg•2m ago•0 comments

Google warns EU's plans to weaken its monopoly could expose user data

https://arstechnica.com/gadgets/2026/06/google-warns-eus-plans-to-weaken-its-monopoly-could-expos...
1•Bender•2m ago•0 comments

Lawmaking as Memorial: Named Laws in the UK

https://consoc.org.uk/blog-named-laws/
1•jruohonen•4m ago•0 comments

La empresa que quiere cambiar Cómo funciona el dinero digital

https://chabit.io/
1•floricrypto•5m ago•0 comments

The more AI agents write code, the more you need an independent reviewer

https://www.coderabbit.ai/blog/code-review-needs-independence
1•smb06•5m ago•1 comments

CERN bids farewell to the LHC and enters Long Shutdown 3

https://home.cern/cern-bids-farewell-to-the-lhc-and-enters-long-shutdown-3/
1•HelloUsername•6m ago•0 comments

Why Your AI Agents Should Stop Speaking English

https://thenewassociationwebmasters.blogspot.com/2026/06/the-language-trap-reset-base-margin-0.html
2•odilelof•8m ago•0 comments

Free Granola Alternate

https://pitara.ai/login?next=%252F
1•chayanvinayak•8m ago•0 comments

.garden TLD's change to a bad neighborhood

https://discourse.ifin.network/t/garden-tlds-change-to-a-bad-neighborhood/627
2•speckx•9m ago•0 comments

Microsoft launches WSL Containers in public preview

https://www.neowin.net/news/microsoft-finally-launches-wsl-containers-in-public-preview/
1•bundie•11m ago•0 comments

Launch 30 Companies in May (update)

https://toddmerrill.substack.com/p/what-27-ventures-in-30-days-actually
1•dudemanAtl•13m ago•1 comments

Notion shutting down its AI-powered email client, including Mac and iOS apps

https://9to5mac.com/2026/06/25/notion-shutting-down-its-ai-powered-email-client-including-mac-and...
1•frizlab•13m ago•0 comments

Don't Provoke Russia

https://www.youtube.com/watch?v=X2ntp0r9oIk
1•frag•14m ago•0 comments

Inferring Living Standards from the Value of a Statistical Life

https://www.nber.org/papers/w35382
1•paulpauper•14m ago•0 comments

Feds Tracked Down an Anti-ICE Dad in NYC Hotel, but How?

https://gizmodo.com/federal-agents-reportedly-tracked-down-an-anti-ice-dad-in-a-new-york-hotel-it...
2•ripe•15m ago•1 comments

A (Rails) Polymorphic Type Is Not a Foreign Key

https://baweaver.com/writing/2026/06/25/rails-sharp-parts-a-polymorphic-type-is-not-a-foreign-key/
1•mooreds•17m ago•0 comments

We Don't Need Facebook

https://rnotte.art/we-dont-need-facebook/
2•speckx•17m ago•0 comments

Migrating from TrueNAS to NixOS without losing data after the rug pull

https://www.nijho.lt/post/truenas-to-nixos/
2•basnijholt•21m ago•0 comments

The 80% Problem: The Last 20% Is Where the Engineer Used to Live

https://www.jonathanbeard.io/blog/2026/06/27/the-80-percent-problem.html
5•speckx•23m ago•0 comments

Bernie Sanders unveils $7T plan to give Americans control of AI industry

https://arstechnica.com/tech-policy/2026/06/bernie-sanders-unveils-7-trillion-plan-to-give-americ...
5•FinnLobsien•23m ago•1 comments

The Trouble with Reused Phone Numbers in CIAM

https://ciamweekly.substack.com/p/the-trouble-with-reused-phone-numbers
3•mooreds•24m ago•2 comments

Flint: Fast Library for Number Theory

https://flintlib.org/
2•smasher164•24m ago•0 comments

How can engineering leaders avoid becoming Bond villains?

https://stackoverflow.blog/2026/06/26/paging-charity-how-can-engineering-leaders-avoid-becoming-b...
2•mooreds•24m ago•0 comments

Apple iPhone 20: Everything We Know About the Redesign Coming in 2027

https://www.cnet.com/tech/mobile/apple-iphone-20th-anniversary-edition-rumors-2027/
3•taubek•29m ago•0 comments

Rekor – immutable tamper resistant metadata ledger

https://github.com/sigstore/rekor
2•gregsadetsky•30m ago•0 comments

Application Gatekeeping: An Ever-Expanding Pathway to Internet Censorship

https://www.eff.org/deeplinks/2025/11/application-gatekeeping-ever-expanding-pathway-internet-cen...
1•thunderbong•31m ago•0 comments

WordPalette – Generate a brand palette and visual identity from a word or image

https://wordpalette.github.io/
1•javatuts•31m ago•0 comments