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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/

Why don't multi-column indices help queries on the second column?

https://huonw.github.io/blog/2026/03/multi-column-index/
1•dbaupp•1m ago•0 comments

Mitata: Benchmark tooling that loves you

https://github.com/evanwashere/mitata
1•jcbhmr•1m ago•0 comments

The First AI-Grown Land

https://twitter.com/alexwg/status/2035349366081216769
1•kristianpaul•2m ago•1 comments

Maxzhub – The platform where your expertise earns per minute, not per project

https://maxzhub.com/
1•alonsoarellano•4m ago•0 comments

Forget my iPhone password: how to get into a Locked iPhone

https://www.aiseesoft.com/tutorial/unlock-iphone.html
1•Jerry_Lane•6m ago•0 comments

Free calculator: Zapier pricing vs. Make.com, Pabbly Connect, and n8n

https://workflowpick.com/zapier-pricing-calculator/
1•hxinbos•11m ago•0 comments

Maxell MXCP-P100 – wireless cassette player

https://maxell-usa.com/product/cassetteplayer/
1•ChrisArchitect•14m ago•0 comments

Everyone Owns Cloud Security. That's Why Nobody Does

https://blog.ebbypeter.com/2026/03/everyone-owns-cloud-security-thats-why-nobody-does/
1•shadowAuror•16m ago•0 comments

Sunsetting the Techempower Framework Benchmarks

https://github.com/TechEmpower/FrameworkBenchmarks/issues/10932
1•nbrady•17m ago•0 comments

Epoch confirms GPT5.4 Pro solved a Frontier Math Open Problem for the first time

https://epoch.ai/frontiermath/open-problems/ramsey-hypergraphs
1•in-silico•18m ago•0 comments

Representation and Invariance of Scientific Structures (2002) [pdf]

https://web.stanford.edu/group/cslipublications/cslipublications/pdf/1575863332.rissbook.pdf
1•o4c•18m ago•0 comments

Why JVM bytecode protection is still an unsolved problem in 2026

https://protector4j.com
4•vlinx•19m ago•0 comments

Patrick Suppes – Foundations of Measurement (1981)[video]

https://www.youtube.com/watch?v=oQyo3zTyvT4
1•o4c•21m ago•0 comments

Don't tell the AI it's an expert programmer

https://www.theregister.com/2026/03/24/ai_models_persona_prompting/
3•davoneus•27m ago•1 comments

I Created My First AI-Assisted Pull Request and I Feel Like a Fraud

https://nelson.cloud/i-created-my-first-ai-assisted-pull-request-and-i-feel-like-a-fraud/
13•nelsonfigueroa•28m ago•12 comments

UK Government to make "plug-in solar" available within months

https://www.gov.uk/government/news/government-to-make-plug-in-solar-available-within-months
1•DamonHD•29m ago•3 comments

Ramp: How we made Ramp sheets self-maintaining

https://twitter.com/RampLabs/status/2036165188899012655
2•behat•30m ago•0 comments

Improving Vector Search for Jobs with Semantic Gating

https://corvi.careers/blog/semantic-gating-partitioning-filtered-ann/
1•sp1982•33m ago•0 comments

Scientists discover Alzheimer's hidden "death switch" in the brain

https://www.sciencedaily.com/releases/2026/03/260323005526.htm
2•gurjeet•34m ago•0 comments

ExifVoid – Client-side photo metadata removal, nothing leaves the browser

https://www.exifvoid.com/
1•kevinrrr•36m ago•0 comments

Cheapest Available Unlocked iPhones

https://www.bestbuy.com/site/searchpage.jsp?browsedCategory=pcmcat1542305802014&id=pcat17071&sp=P...
1•gurjeet•38m ago•1 comments

Solar Energy Remarks Announcing Administration Proposals (1979)

https://energyhistory.yale.edu/president-jimmy-carters-remarks-at-white-house-solar-panel-dedicat...
1•jmward01•40m ago•1 comments

A collection of my Projects, including my Open Source VitaFPGA Architecture

https://github.com/VitaMixofNutrients/VitaOS-Libre
1•pcwir•43m ago•1 comments

Hybrid Observatory for Earth-Like Exoplanets (HOEE)

https://www.nasa.gov/general/hybrid-observatory-for-earth-like-exoplanets-hoee/
1•consumer451•43m ago•0 comments

Snow CLI,Agentic coding in your terminal

https://github.com/MayDay-wpf/snow-cli
1•mufasa555•44m ago•0 comments

Scott Galloway: I'm Buying SaaS Stocks

https://www.inc.com/brian-contreras/scott-galloway-saaspocalypse-farce-buying-saas-stocks-salesfo...
1•umangsehgal93•44m ago•0 comments

Aisynthex

https://aisynthex.com/
1•igargipa•45m ago•0 comments

Reflections on Hosting a Programming Contest

https://thomasqm.com/post/hammerwars
1•thomasqm•48m ago•0 comments

TypedChannels: E2E type-safe Phoenix channels with Ash Framework

https://hexdocs.pm/ash_typescript/0.16.0/typed-channels.html
3•borromakot•48m ago•0 comments

LLM Neuroanatomy II: Modern LLM Hacking and Hints of a Universal Language?

https://dnhkng.github.io/posts/rys-ii/
2•zdw•49m ago•1 comments