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Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•6mo ago

Comments

trane_project•6mo 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/

Playbook-Based Agent Reference Architecture

https://chatbotkit.com/examples/playbook-based-agent-reference-architecture
1•_pdp_•4m ago•1 comments

What's a piece of tech you were excited about but stopped using?

1•bobbyblackstone•5m ago•0 comments

Show HN: Gemini, OpenAI, Claude, Grok and Mistral argue over everything

https://llmxllm.com/
1•mananonhn•6m ago•1 comments

The strangest programming languages you've ever heard of

https://www.omnesgroup.com/weirdest-programming/
1•birdculture•7m ago•0 comments

AI tool that audits UI and generates fixes(built in 36 hours)

https://blopai.com/
1•Laurlund449•9m ago•1 comments

Does Liking Yellow Imply Driving a School Bus? Semantic Leakage in LLMs

https://arxiv.org/abs/2408.06518
1•trueduke•10m ago•0 comments

Show HN: Solving Zodiac's Z32 – top candidate has anomaly visible from space

https://github.com/dstampher/zodiac-z32-cipher
1•dstamp•10m ago•0 comments

Facial recognition should not be introduced without Scottish Givernment sign off

https://www.thenational.scot/news/25696771.orwellian-facial-recognition-shouldnt-introduced-witho...
1•nephihaha•15m ago•1 comments

The left has become preserve of old white men

https://www.thenational.scot/politics/25696958.radical-left-become-preserve-old-white-men/
3•nephihaha•18m ago•2 comments

My AI Usage Manifesto

https://jshamsul.com/essays/2025-12-13-my-ai-usage-manifesto
1•jibone•19m ago•0 comments

The Gorman Paradox: An Explanation? – Codemanship's Blog

https://codemanship.wordpress.com/2025/12/15/the-gorman-paradox-an-explanation/
1•rbanffy•23m ago•0 comments

Rejecting rebase and stacked diffs, my way of doing atomic commits

https://iain.rocks/blog/2025/12/15/rejecting-rebase-and-stack-diffs-my-way-of-doing-atomic-commits
1•that_guy_iain•25m ago•0 comments

SK Hynix Forecasts Tight Memory Supply Lasting Through 2028

https://www.techpowerup.com/344063/sk-hynix-forecasts-tight-memory-supply-lasting-through-2028
1•akyuu•26m ago•0 comments

Chain Prompts Like Unix Tools with Dotprompt

https://pythonic.ninja/blog/2025-11-27-dotprompt-unix-pipes/
1•PythonicNinja•28m ago•0 comments

Show HN: LeagueOfLegends AI Coach

https://github.com/sorena-ai/LeagueAiCoach
1•danielbedrood•28m ago•0 comments

Show HN: Turn LinkedIn/GitHub into a personal website in 2 min (open-source)

https://github.com/yashrathi-git/portfolioly
1•produktive•29m ago•0 comments

Avoid UUIDv4 Primary Keys

https://andyatkinson.com/avoid-uuid-version-4-primary-keys
2•pil0u•32m ago•0 comments

Why New York Has Backed Off on Addressing Climate Change

https://www.nytimes.com/2025/12/15/nyregion/why-new-york-has-backed-off-on-addressing-climate-cha...
2•fleahunter•32m ago•0 comments

OS-9

https://en.wikipedia.org/wiki/OS-9
2•doener•35m ago•0 comments

These Aren't the Tools You're Looking For: The Hidden Dangers of MCP

https://ainativedev.io/news/these-aren-t-the-tools-you-re-looking-for-the-hidden-dangers-of-mcp
1•ben_s•37m ago•0 comments

The First Moonwalk – Bill Bailey – The Apollo Theatre – New York – 1955 [video]

https://www.youtube.com/watch?v=y71njpDH3co
1•handfuloflight•37m ago•0 comments

Building a High-Performance OpenAPI Parser in Go

https://www.speakeasy.com/blog/building-speakeasy-openapi-go-library
1•subomi•37m ago•0 comments

Deep-learning model predicts how fruit flies form, cell by cell

https://news.mit.edu/2025/deep-learning-model-predicts-how-fruit-flies-form-1215
4•fleahunter•39m ago•0 comments

The Importance of Network Effects for Startups

https://www.techfounderstack.com/p/the-importance-of-network-effects
1•makle•40m ago•0 comments

Korea mandates switch to 5G standalone, warns carriers of measures

https://biz.chosun.com/en/en-it/2025/12/10/IQDII7T33REKFGHNYCMM44QSX4/
2•ksec•41m ago•0 comments

Show HN: A playful repo full of Christmas easter eggs

https://github.com/openapi/xmas-party
3•francescobianco•43m ago•0 comments

New Bill That Would Ban 'Chemtrails' Advances in South Carolina Senate

https://www.charlottestories.com/new-bill-that-would-ban-chemtrails-advances-in-south-carolina-se...
1•doener•44m ago•0 comments

Starlink and Chinese satellites nearly collided last week

https://www.theverge.com/news/844502/starlink-and-chinese-satellites-nearly-collided-last-week
2•quapster•45m ago•0 comments

iRobot Files for Bankruptcy

https://www.theverge.com/news/844460/irobot-files-for-bankruptcy
3•praving5•48m ago•0 comments

Show HN: Gochu – Uncensored AI chat, free and no email required

https://gochu.app
1•theuniquebob•49m ago•1 comments