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Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•9mo ago

Comments

trane_project•9mo 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/

Ransomware groups switch to stealthy attacks and long-term access

https://www.csoonline.com/article/4137010/ransomware-groups-switch-to-stealthy-attacks-and-long-t...
1•kseniamorph•51s ago•0 comments

Offlining a Live Game with .NET Native AOT

https://sephnewman.substack.com/p/offlining-a-live-game-with-net-native
1•kg•2m ago•0 comments

Communication Files: Interprocess IO before Pipes (2017) [pdf]

https://www.cs.dartmouth.edu/~doug/DTSS/commfiles.pdf
1•mpweiher•2m ago•0 comments

US Customs destroys rare floppy disk

https://twitter.com/TehKeripo/status/2027171532825571678
1•Shank•3m ago•0 comments

Chinese car crashes after voice command kills headlights

https://carnewschina.com/2026/02/27/car-crashes-after-voice-command-kills-headlights-lynk-co-z20-...
2•giuliomagnifico•3m ago•0 comments

PostmarketOS in 2026-02: generic kernels, bans use of generative AI

https://postmarketos.org/blog/2026/02/26/pmOS-update-2026-02/
2•pantalaimon•5m ago•0 comments

Perplexity Computer Review – $100 lost in an hour

https://old.reddit.com/r/perplexity_ai/comments/1rfver4/perplexity_computer_review_100_lost_in_an...
1•daniel_iversen•5m ago•0 comments

Pentagon Fires Another Laser at Drone, Prompting New Air Closure

https://www.nytimes.com/2026/02/26/us/drone-faa-dhs-el-paso-airspace.html
1•reaperducer•5m ago•0 comments

A benchmark of expert-level academic questions to assess AI capabilities – HLE

https://www.nature.com/articles/s41586-025-09962-4
1•tufo•5m ago•0 comments

Blame RMS for AI Coding

https://bit1993.bearblog.dev/blame-rms-for-ai-coding/
3•bit1993•7m ago•0 comments

The war against PDFs is heating up

https://www.economist.com/business/2026/02/24/the-war-against-pdfs-is-heating-up
3•jcartw•7m ago•1 comments

The Insane Stupidity of UBI

https://geohot.github.io//blog/jekyll/update/2026/02/27/the-insane-stupidity-of-ubi.html
1•swah•8m ago•0 comments

Why your AI agents have goldfish syndrome

https://substack.com/home/post/p-189327282
1•vektormemory•11m ago•0 comments

Global Intelligence Crisis

https://www.citadelsecurities.com/news-and-insights/2026-global-intelligence-crisis/
1•jbredeche•12m ago•0 comments

Osmix

https://medium.com/conveyal-blog/introducing-osmix-365c4b4332ef
1•maxerickson•14m ago•0 comments

Which piece of speculative fiction had the greatest one-day stock market impact?

https://www.ft.com/content/f12398a8-ef57-412f-ae40-67ef9b421bed
2•cainxinth•17m ago•1 comments

AI Isn't the Excuse. It's the Enabler

https://devrimvardar.com/topic/ai-enabler-layoffs
1•devrimco•18m ago•1 comments

Show HN: Caddy plugin that charges AI crawlers real USDC to access your site

https://github.com/paolobietolini/caddy-x402
1•paolobietolini•19m ago•2 comments

STRinGS: Selective Text Refinement in Gaussian Splatting

https://strings-official.github.io
2•Claudiusseibt•21m ago•0 comments

Show HN: Kaomojiya – Browse and copy kaomoji (Japanese text emoticons) instantly

https://www.kaomojiya.org
1•chrisweiindie•22m ago•0 comments

Show HN: AI sandbox that runs on your homelab

https://github.com/deevus/pixels
1•deevus•23m ago•0 comments

"Our programs are fun to use."

https://unsung.aresluna.org/our-programs-are-fun-to-use/
2•todsacerdoti•24m ago•0 comments

Perplexity Computer – The Age of AI Agents Is Here

https://medium.com/seeds-for-the-future/perplexity-computer-the-age-of-ai-agents-is-here-958b3388...
1•hungryminded•24m ago•1 comments

Architectural Decisions That Will Make or Break Your AI Product

https://kb-it.net/5-architectural-decisions-that-will-make-or-break-your-ai-product/
1•better-it•25m ago•0 comments

Show HN: Httap – intercept and inspect HTTP traffic from your shell or agent

https://github.com/mtford90/httap
1•mtford•28m ago•0 comments

Best books/guides to learn about Stable coins in 2026

1•karti03•28m ago•0 comments

Lawmakers say US Military used laser to take down Border Protection drone in TX

https://apnews.com/article/military-laser-border-drone-texas-airport-55aaab7093f7d6dd174f909f3875...
5•thinkcontext•28m ago•1 comments

How Neoliberalism Broke Britain (2023)

https://tribunemag.co.uk/2023/10/breaking-britain-neoliberalism
1•robtherobber•29m ago•0 comments

Show HN: Shannon – Local desktop app to orchestrate Claude Code agent teams

1•lydionfinance•29m ago•0 comments

ChatGPT Advanced Data Analysis vs. Local Alternatives: A Privacy Comparison

https://www.queryveil.com/blog/chatgpt-data-analysis-privacy-comparison
1•david-rodriguez•31m ago•1 comments