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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/

A Brief History of Life

https://sites.psu.edu/gopalan/curiosity-corner/light/
1•suopspaces•1m ago•0 comments

World model companies are keeping a lot of secrets

https://techcrunch.com/2026/09/20/world-model-companies-are-keeping-a-lot-of-secrets/
1•ent101•8m ago•0 comments

AI is breaking the academic sorting machine

https://lemire.me/blog/2026/09/20/ai-is-breaking-the-academic-sorting-machine/
1•chmaynard•9m ago•0 comments

A Fresh Start: My Minimalist Blog Redesign After 14 Years

https://bcastell.com/posts/a-fresh-start/
1•Breakthrough•9m ago•0 comments

Reviving Deserts with Syntropic Agroforestry

https://wikifarmer.com/library/en/article/reviving-deserts-with-syntropic-agroforestry
1•lawrenceyan•9m ago•0 comments

Delta (zed.dev) – Help understanding ToS

https://zed.dev/terms#41-zeds-use-of-customer-data
2•maxpicklez•11m ago•1 comments

Can I Let My AI Agent Run on Shabbat?

https://www.chabad.org/library/article_cdo/aid/7288064/jewish/Can-I-Let-My-AI-Agent-Run-on-Shabba...
3•some-guy•12m ago•0 comments

Deterministic grounding checks for LLM agents, no LLM in the hot path

https://github.com/polarisbuiltinc-wq/ora-grounding
1•tjsandhu•13m ago•0 comments

When Intelligence Becomes Abundant, Architecture Becomes the Constraint

https://henrymurphy832344.substack.com/p/when-intelligence-becomes-abundant
1•hmurphy100•14m ago•0 comments

Deterministic Core, Non-Deterministic Shell

https://outdata.net/blog/260803
1•brandon_bot•15m ago•1 comments

Fluid Simulation in One Tweet

https://davidar.io/post/fluid
1•E-Reverance•15m ago•0 comments

Why Bother with Lint Rules If AI Writes the Code?

https://allstead.dev/blog/why-lint-when-ai-writes-the-code
1•willio58•21m ago•3 comments

The Great Gatsby

https://calmscroll.com/the-great-gatsby-f-scott-fitzgerald
1•amadeuspagel•24m ago•0 comments

Canada and France to Develop Space Systems

https://www.bloomberg.com/news/articles/2026-09-20/canada-france-to-develop-shared-space-launch-i...
1•Teever•28m ago•0 comments

Open Radar Code Architecture

https://orca.radioglaciology.com/
2•toomuchtodo•37m ago•1 comments

Applesauce: Transparent Compression for Apple File System Compression (AFSC)

https://github.com/Dr-Emann/applesauce
1•colechristensen•41m ago•0 comments

Jev – System-1 Agent Architecture Radar (open-source)

https://github.com/logicrw/awesome-jev-projects
2•noobplus•41m ago•0 comments

Nobel economists throw support behind California billionaire tax

https://www.ft.com/content/94ec0fee-53ab-4d7e-9b17-6b05608ad974
5•paulpauper•42m ago•0 comments

UK productivity grew twice as fast as thought after 2008 financial crisis

https://www.ft.com/content/560fc2ad-5c7e-4878-ae9b-a3183004c394
1•paulpauper•42m ago•1 comments

Jevcache

https://jevcache.sh/
2•handfuloflight•42m ago•0 comments

Victor Hugo Helped Save the Notre-Dame

https://news.artnet.com/art-world/art-bites-victor-hugo-notre-dame-2802365
2•ohjeez•43m ago•1 comments

ZCode: Z.ai's coding agent harness. Powerful, intelligent, extensible

https://github.com/zai-org/ZCode
1•doppp•49m ago•0 comments

Flock Partnered with Nonprofit That Uses AI to Rally Public Support

https://theintercept.com/2026/09/17/flock-cameras-ai-astroturf-support/
3•dp-hackernews•54m ago•0 comments

How to Post Train

https://howtoposttrain.com/
1•Nischalj10•58m ago•0 comments

A study of sequence weighting at scale

https://blog.janestreet.com/a-study-of-sequence-weighting-at-scale/
2•eatonphil•59m ago•0 comments

How Google is drafting AI chatbot laws around the country

https://www.npr.org/2026/09/18/nx-s1-5968878/ai-chatbots-safety-regulation-google
1•andsoitis•1h ago•0 comments

Giveaway Bot Services

https://discord.com/oauth2/authorize?client_id=1547251904277651578&permissions=4503599627783232&i...
1•jotajx•1h ago•0 comments

Nvidia's Jensen Huang rejects AI extinction warnings as "doomsday narratives"

https://www.cbsnews.com/news/jensen-huang-nvidia-rejects-ai-extinction-warnings/
4•AlexDragusin•1h ago•3 comments

ReBarUEFI: Resizable BAR for almost any UEFI system

https://github.com/xCuri0/ReBarUEFI
1•nateb2022•1h ago•0 comments

OpenAI Sees Burning Through $278B by 2030: FT

https://www.bloomberg.com/news/articles/2026-09-18/openai-projects-burning-through-278-billion-by...
3•sbulaev•1h ago•2 comments