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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/

Show HN: AI Frothiness Index. Daily reading of how stretched the AI boom is

https://frothiness.jagular.io
1•psiberaktiv•28s ago•0 comments

Sheet Music Deserves Better, So We Built Our Own Company [video]

https://www.youtube.com/watch?v=8YXRcR5jJqY
1•Udo_Schmitz•57s ago•0 comments

Microsoft patent: turning idle gaming GPUs into paid AI training hardware

https://videocardz.com/newz/microsoft-could-pay-gamers-for-using-spare-gpu-capacity-to-train-ai
1•simonpure•3m ago•0 comments

Cult of the Dead Cow Reboot [Apr 2026]

https://cultdeadcow.com/news/declaration_rebooted.html
1•sans_souse•4m ago•0 comments

Guns on Amtrak Trains? A Workers Union Is Up in Arms.

https://www.nytimes.com/2026/11/09/travel/amtrak-guns-workers-union.html
1•bookofjoe•7m ago•1 comments

Daybreak says I'm all set. Codex still blocks my own security audit

https://namegarage.com/blog/daybreak-blocked-my-own-security-audit
1•nikolay•12m ago•0 comments

Nvidia's AI advantage is moving beyond the GPU

https://techcrunch.com/2026/08/29/nvidias-ai-advantage-is-moving-beyond-the-gpu/
1•gmays•14m ago•0 comments

$16k and a Solar Panel

https://blog.greg.technology/2026/11/08/16k-and-a-solar-panel.html
2•gregsadetsky•16m ago•0 comments

Debloat Any Android or Google TV over Wi-Fi

https://github.com/Gathin23/cleanyourtv
1•spectraldrift•19m ago•0 comments

Serc: CPython bytecode compiler written in Rust (Codex built, 2-4x speedup)

https://github.com/astral-experiments/serc
2•agustaf•20m ago•1 comments

OpenAI models have no agency anymore

3•l-mdev•22m ago•0 comments

ASRock Rack DMRD16-2L+ Spotted with 16 DDR5 Slots for Diamond Rapids

https://www.servethehome.com/asrock-rack-dmrd16-2l-plus-diamond-rapids-ocp-summit-2026/
1•peter_d_sherman•22m ago•0 comments

Bloomberg Software Support

https://www.blpprofessional.com/
1•enjoyyourlife•25m ago•0 comments

Why Fewer People Are Challenging Bad Patents

https://www.eff.org/deeplinks/2026/11/why-fewer-people-are-challenging-bad-patents
2•gslin•28m ago•0 comments

Which Claude model should you build with? Fable, Opus, Sonnet, or Haiku

https://claude.dev/blog/which-claude-model-should-you-build-with/
2•882542F3884314B•28m ago•0 comments

There's a Reason for Holes on the Tops of Pen Caps (2016)

https://www.sciencealert.com/why-there-are-holes-in-tops-of-pen-caps-lids-bic
1•helloworld•28m ago•0 comments

iyi: A friendly, fast programming language for people and their agents

https://iyi.dev/
2•sedatk•30m ago•0 comments

Show HN: Fynepdf-pdfa – PDF/A conversion without Ghostscript (MIT)

https://github.com/fynepdf/fynepdf-pdfa
1•biaz•36m ago•0 comments

American Express is cutting 5% of its workforce to 'prepare for AI'

https://www.cnbc.com/2026/10/23/american-express-job-cuts.html
4•lxm•38m ago•1 comments

Anthropic Seeks to Raise $69.3B via Its IPO

https://www.bloomberg.com/news/articles/2026-11-10/anthropic-seeks-to-raise-69-3-billion-via-its-...
3•mfiguiere•39m ago•0 comments

Anthropic sends out, then retracts details of IPO filing, emails show

https://www.reuters.com/business/anthropic-aims-raise-up-693-billion-blockbuster-ipo-2026-11-10/
2•nycdatasci•39m ago•1 comments

Should learning to code be like learning to read?

https://olu.online/should-learning-to-code-be-like-learning-to-read/
3•meetpateltech•45m ago•0 comments

UK mathematician debunks myth around Parthenon's optical illusions

https://www.theguardian.com/science/2026/sep/16/uk-mathematician-debunks-myth-parthenon-optical-i...
2•NordStreamYacht•46m ago•0 comments

U.S. Government Networks Will Need to Be Torched and Rebuilt

https://karlbode.com/u-s-government-it-systems-are-completely-compromised-and-will-require-a-tota...
3•cdrnsf•46m ago•0 comments

Show HN: Dating app based on your LinkedIn profile

https://synergy.dating/
3•Startup4Life•46m ago•0 comments

'Stupendously large' primordial black holes ruled out as a dark matter source

https://phys.org/news/2026-11-stupendously-large-primordial-black-holes.html
4•wglb•47m ago•1 comments

A Tale of Blog Spam

https://dennisforbes.ca/blog/microblog/2026/11/blog_spam/
2•llm_nerd•52m ago•0 comments

Musk and Gwynne Shotwell on AI Risks, Peer Review, Starship, Terafab, Merger

https://www.youtube.com/watch?v=iwBOQeFPAwg
2•andsoitis•53m ago•0 comments

Show HN: KeyPad – Universal Control like keyboard/mouse for iPhone, iPhone Duo

https://apps.apple.com/us/app/keypad-bluetooth-keyboard/id1491684442?mt=12
1•toolbunch•54m ago•0 comments

Slonbase update: Lessons from the Show HN launch, trade-offs, and what's next

https://slonbase.com/
2•ayeshrodz•55m ago•0 comments