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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/

Evaluating S2S Model Quality with Human Preference Data

https://research.withdavid.ai/blog/st-s2s-eval
1•EliasLittle•40s ago•0 comments

"Start with a Monolith" Was Good Advice. AI Is Changing That

https://medium.com/scalar-engineering/architecture-in-the-ai-era-part-1-summary-start-with-a-mono...
1•feeblefakie•1m ago•0 comments

Snap launches $2,195 Specs smart glasses

https://finance.yahoo.com/technology/article/snap-launches-2195-specs-smart-glasses-234000058.html
1•geoffbp•3m ago•0 comments

DeepSeek-v4.1 Flash: Pushing the Limits of KV Cache Compression

https://zartbot.github.io/blog/model_arch/dsv41flash_arch/en.html
2•mfiguiere•3m ago•0 comments

What regulatory capture actually looks like

https://marginalrevolution.com/marginalrevolution/2026/09/what-regulatory-capture-actually-looks-...
1•maxutility•3m ago•0 comments

Tin: full-text search for Postgres

https://planetscale.com/blog/introducing-tin
1•gtCameron•8m ago•0 comments

Part-human part-mouse brain developed in science breakthrough

https://www.bbc.com/news/articles/c60m3k28j81mo
1•marc__1•9m ago•0 comments

Show HN: FastRecall, ultra-cheap memory across AI models

https://fastrecall.ai/
1•tomrose•11m ago•0 comments

Michael Burry slams OpenAI, Anthropic for 'self-serving' calls to slow AI

https://nypost.com/2026/09/14/business/big-short-trader-michael-burry-slams-openai-anthropic-for-...
5•nsagent•12m ago•0 comments

Spanish data watchdog publicises first AI agent-linked data breach report

https://www.reuters.com/business/spanish-data-watchdog-publicises-first-ai-agent-linked-data-brea...
2•geoffbp•14m ago•0 comments

Xcode-Project-Format

https://github.com/apple/xcode-project-format
2•interpol_p•15m ago•0 comments

Flowchart: How pixels become an Apple Reference Image

https://claude.ai/artifact/BcyyGRDRimvZgza7d9ts1c
1•alwillis•21m ago•0 comments

Supply Chain Compromise of Korean-Language Windows 11 Installation Media

https://www.logpresso.com/en/blog/2026-09-08-windows11-report-eng
1•ledoge•27m ago•0 comments

Pangram – AI detector for text and images

https://www.pangram.com
1•doodlesdev•29m ago•0 comments

Migrating the GitHub Copilot Runtime to Rust, Using Copilot

https://github.blog/ai-and-ml/generative-ai/migrating-the-github-copilot-runtime-to-rust-using-co...
3•abraham•30m ago•1 comments

Game UI Database

https://www.gameuidatabase.com
2•andsoitis•33m ago•0 comments

Found a B2B billing stack for my agency that doesn't feel like 2010

https://cordhq.app/
1•andrevalleo•33m ago•0 comments

Pro UI: native grade components for pro software

https://pro-ui.dev/
2•handfuloflight•34m ago•0 comments

Page Shield ML caught 4 storefront malware campaigns scanners missed

https://blog.cloudflare.com/client-side-security-finds-4-malicious-campaigns/
2•iamsyr•35m ago•0 comments

Why the Postpandemic Tech Bust Sent Billionaires to Trump

https://www.wired.com/story/against-tech-oligarchy-book-excerpt-trump-billionaries/
3•jacobolus•35m ago•0 comments

Hacker puts 'full redundancy' code-hosting firm out of business (2014)

https://www.pcworld.com/article/439918/hacker-puts-full-redundancy-codehosting-firm-out-of-busine...
1•doodlesdev•39m ago•0 comments

OpenAI Discloses Six New Incidents of ‘Concerning’ A.I. Behavior

https://www.nytimes.com/2026/09/16/technology/openai-model-safety-guardrails.html
24•jbegley•40m ago•8 comments

Math challenges a 2k-year-old story about Parthenon's optical illusions

https://phys.org/news/2026-09-mathematician-year-legend-parthenon-optical.html
1•wglb•41m ago•0 comments

Could Your Chatbot Be Stealing Ideas from You?

https://www.nytimes.com/2026/09/10/science/chatbot-stealing-ideas.html
2•bookofjoe•41m ago•1 comments

Weeping whales: Stillborn humpback whale grieving documented

https://phys.org/news/2026-09-whales-stillborn-humpback-whale-grieving.html
1•wglb•42m ago•0 comments

I gave my agents a heartbeat

https://mlsystemsri.com/insights/i-gave-my-agents-a-heartbeat
1•Salparvezml•43m ago•0 comments

Will AI Replace Your Doctor? Dr. Zeke Emanuel and AMA President Dr. John Whyte

https://www.youtube.com/watch?v=WTnZ6W7qsLQ
1•shamoo•51m ago•1 comments

A Large Database Does Not Mean Large Shared_buffers

https://www.keithf4.com/a-large-database-does-not-mean-large-shared_buffers/
2•b-man•55m ago•0 comments

Size-Specialized Memory Allocation

https://go.dev/blog/size-specialized-allocations
2•spacey•57m ago•0 comments

What's Scarier Than Agents Taking over Internet? CEO Cartel Trying Take over AI

https://fractalsofchange.substack.com/p/q-whats-scarier-than-a-swarm-of-ai
7•gz5•58m ago•1 comments