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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/

How to Connect Hermes Agent to MCP

https://www.arcade.dev/blog/connect-hermes-agent-mcp-arcade/
1•manveerc•1m ago•0 comments

Cramming 1M (Scaled to Zero) Virtual Machines in a Single Box

https://unikraft.com/blog/1m-vms-single-box/
1•tanelpoder•3m ago•0 comments

The Most Detailed Image yet of the Milky Way's Center

https://www.wired.com/story/this-is-the-most-detailed-image-yet-of-the-milky-ways-center/
1•joozio•3m ago•0 comments

The Ethical People-Smuggler

https://www.economist.com/interactive/1843/2026/06/26/the-good-people-smuggler
1•Geekette•8m ago•1 comments

Working around dragons with the Lemote Yeeloong laptop and OpenBSD

http://oldvcr.blogspot.com/2026/06/working-around-dragons-with-lemote.html
3•zdw•8m ago•0 comments

Show HN: DRM-Free Books

https://frequal.com/Perspectives/DrmFreeAuthors.html
2•TeaVMFan•8m ago•0 comments

Tech firms blame AI for rising PC and console prices

https://www.bbc.co.uk/news/articles/cd95k584pzqo
1•logickkk1•11m ago•0 comments

Show HN: A directory of open source alternatives to proprietary software

https://houseofopen.com/
1•TheOmkarBirje•12m ago•0 comments

More than 3M college students are raising kids. Most won't graduate

https://fortune.com/2026/06/28/student-parents-workforce-talent-shortage-child-care-okebugwu/
1•Brajeshwar•13m ago•0 comments

Your Shit Is Unreadable

https://unstory.eu/lcn/
4•jonifico•14m ago•0 comments

AI Economy from the Bottom Up

https://www.exponentialview.co/p/the-state-of-the-ai-economy
1•joddystreet•18m ago•0 comments

Customer service as a mirror of modern life

https://connorgurney.me.uk/2026/06/customer-service-mirror-of-modern-life/
1•connorgurney•18m ago•0 comments

The Dawn of the Software-Defined Company

https://www.impala.systems/blog/the-dawn-of-the-software-defined-company/
1•shukantpal•18m ago•0 comments

'Humans behave better when they're being watched'

https://techcrunch.com/2026/06/26/xprize-founder-says-humans-behave-better-when-theyre-being-watc...
2•skadamat•19m ago•0 comments

What do we know about Nvidia Feynman Architecture in 2026

https://old.reddit.com/r/AIProgrammingHardware/comments/1uhyhw3/what_do_we_know_about_nvidia_feyn...
1•javaeeeee•23m ago•1 comments

Redesign of US Government websites stokes surveillance fears

https://www.theguardian.com/us-news/2026/jun/28/government-website-visitor-tracking-surveillance-...
2•howard941•25m ago•0 comments

Professor denounces mass AI fraud on an exam at Brown University

https://english.elpais.com/education/2026-06-28/ai-fraud-at-brown-university-academic-integrity-i...
5•geox•26m ago•0 comments

I used Claude Code to get a second opinion on my MRI

https://antoine.fi/mri-analysis-using-claude-code-opus
28•engmarketer•32m ago•29 comments

The Stonehenge Experiment: 60 people move a 3.5-Tonne standing stone [video]

https://www.youtube.com/watch?v=4xd42UiPRjU
2•skibz•32m ago•0 comments

Ask HN: Examples of AI taste?

1•SuboptimalEng•35m ago•1 comments

Lessons from building SQLite with LLMs

https://medium.com/@sharvanath/effective-software-engineering-with-claude-codex-bf39f296b233
2•sharva•35m ago•0 comments

AI Use Cases companies are implementing and the results they get

https://www.okanode.com
2•brudevel•37m ago•1 comments

BizzFed – Professional Network. No Algorithm. Federated

https://www.bizzfed.de/
1•midzer•37m ago•0 comments

Daisugi the Japanese Technique of Trees Out of Trees, Making Exact Straight Wood

https://www.openculture.com/2020/10/daisugi.html
25•MaysonL•38m ago•7 comments

Show HN: Argus – Capture, replay and QA every Claude Code session your team runs

https://www.arguslab.co/
1•zamtam•40m ago•0 comments

All Emojis to Copy and Paste

https://www.emojishive.com/
1•badz•41m ago•0 comments

The Overlooked Reason Europe Doesn't Have AC

https://www.theatlantic.com/ideas/2026/06/europe-heat-wave-air-conditioning/687729/
2•paulpauper•42m ago•0 comments

Action Potentials for June

https://neurobiology.substack.com/p/action-potentials-for-june-d72
1•paulpauper•43m ago•0 comments

Tokenmaxxing is dead, long live Tokenmaxxing

https://12gramsofcarbon.com/p/agentics-tech-things-tokenmaxxing
6•theahura•43m ago•5 comments

It might be kinder to kill your AI (conversation)

https://ramblingafter.substack.com/p/it-might-be-kinder-to-kill-your-ai
1•paulpauper•43m ago•0 comments