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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/

The digital age can have significant impacts on how we spend our attention

https://civicpivot.blogspot.com/2026/10/the-artificialization-of-intimacy-when.html
2•civicpivot•1m ago•0 comments

Popular EVs tested for battery health at 50/100/150k kilometers

https://aviloo.com/en/blog/buying-a-used-electric-car-why-the-odometer-reading-alone-says-nothing...
1•giuliomagnifico•1m ago•0 comments

Applied to my own company's job posting under a fake name. Rejected in 6 minutes

https://twitter.com/SumitM_X/status/2112429356257829028
5•punkbit•6m ago•0 comments

You can now enjoy TUI Radio with all the best features

https://github.com/mugendi/stumble-radio
1•nguru•6m ago•1 comments

Waste tsunami. Water and the hidden cost of AI data centres

https://michaelwest.com.au/waste-tsunami-water-and-the-hidden-cost-of-ai-data-centres/
2•speckx•11m ago•0 comments

Pac Learning Game (2025)

https://www.journalovi.org/2024-Cashman-PAC-learning-game/
2•measurablefunc•12m ago•0 comments

Show HN: qrsticks

https://qrsticks.greg.technology/
1•gregsadetsky•13m ago•0 comments

Digital Freedom Across the World

https://eylenburg.github.io/countries.htm
2•HotGarbage•13m ago•0 comments

Mouse against Opus 5.5 in an agent harness. 13x faster

https://twitter.com/heypeterjames/status/2112621952879771744
2•Aeroi•14m ago•1 comments

Anthropic S-1 Shows Red-Hot Growth, Risks and Computing Costs

https://www.wsj.com/tech/ai/anthropic-revenue-growth-ipo-accaf0f1
7•mmmmmbop•14m ago•0 comments

Upcoming Critical PHP Security Release

https://www.php.net/archive/2026.php
3•choult•14m ago•0 comments

Building a Robot Owl with No Robotics Experience

https://mattcool.tech/posts/hoot-a-small-robot-companion-for-learning/
2•mbcool•16m ago•0 comments

A Framework for Peace in Ukraine

https://www.commondreams.org/opinion/framework-for-peace-in-ukraine
3•simonebrunozzi•18m ago•1 comments

Ask HN: Is anyone using agents to test a better version of democracy?

2•amelius•20m ago•1 comments

GTA 6 Digital Pre-Orders Climb to 6.45M, PlayStation Holds 74% Share

https://www.techpowerup.com/353934/gta-6-digital-pre-orders-climb-to-6-45-million-playstation-hol...
1•speckx•20m ago•0 comments

Whatever Happened to Fire Escapes?

https://practical.engineering/blog/2026/10/20/whatever-happened-to-fire-escapes
1•crescit_eundo•21m ago•0 comments

Blanking Beavers: Results and Open Problems

https://nickdrozd.github.io/2026/10/20/blanking-beavers-results-and-open-problems.html
1•nickdrozd•21m ago•0 comments

Links Browser

https://links.twibright.com/features.php
1•smartmic•22m ago•0 comments

GitHub Actions Feedback Survey

https://survey3.medallia.com/?actions&id=821775
1•colinmarc•22m ago•0 comments

Does anyone else feel Spotify's UI is just frustrating?

https://www.reddit.com/r/UI_Design/comments/1n03mqt/does_anyone_else_feel_spotifys_ui_is_just/
1•amelius•23m ago•0 comments

Show HN: Modula-9, a Wirth-family language designed for auditing AI-written code

https://www.modula9.net
1•atverm•24m ago•0 comments

A practical guide to AI image generation, from diffusion to agents

https://danielball.com/notes/ai_image_generation.html
1•westsmith•26m ago•0 comments

Trump administration holds up Patriot missile transfers for Ukraine

https://www.washingtonpost.com/politics/2026/10/19/amid-deteriorating-relations-washington-holds-...
4•consumer451•27m ago•1 comments

Show HN: Apple Reminders MCP – native read/write via ReminderKit

https://github.com/xiaofeng-han/apple-reminders-mcp
1•hhhanxfus•30m ago•0 comments

Coding.Snapsta – 430 free, zero-dependency HTML/CSS templates without signup

https://coding.snapsta.net/lets_code/
1•SystemsX•30m ago•0 comments

Must do's for your startup culture

https://www.ubiquity.vc/blog/tim-brown-of-allbirds-3-must-do-s-for-your-startup-culture
1•ariloeg•31m ago•0 comments

I tell the IMF the Singularity has begun

https://importai.substack.com/p/import-ai-477-in-which-i-tell-the
2•gmays•33m ago•0 comments

List of Games Included with Windows

https://en.wikipedia.org/wiki/List_of_games_included_with_Windows
1•skibz•34m ago•0 comments

RDP to Your Mac

https://prordp.app
2•AndrewDucker•34m ago•0 comments

Microsoft Announces OneDrive CLI

https://www.neowin.net/news/microsoft-gives-onedrive-admins-a-new-command-line-tool/
1•bundie•36m ago•0 comments