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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: TikTok user finder and video donwloader

https://ohmytt.com/
1•valorantPanda•53s ago•0 comments

Nano Banana 2.1 API at $0.03 per image, same price at 1K, 2K and 4K

https://reapi.ai/blog/nano-banana-2-1-api-pricing
1•andrew06124•4m ago•0 comments

Wick – small typed language for small game engine

https://wick.aulenor.com/
1•alikatyc•7m ago•0 comments

Do you like hard problems?

https://sunilpai.dev/posts/the-wrong-hard-things/
1•yarapavan•10m ago•0 comments

Are 60-Second Microdramas the Future of Hollywood, or the End?

https://www.nytimes.com/2026/10/06/magazine/microdramas-tv-shows-hollywood-entertainment.html
1•ChrisArchitect•13m ago•1 comments

Turn X Posts into Beautiful Visual Stories with AI

https://github.com/mkantwala/iloveposts
1•kantwalamonil•14m ago•0 comments

I'm 47th in line to speak to someone at AIG about a lost Apple Watch

https://www.reddit.com/r/AppleWatch/comments/1wymmpu/im_47th_in_line_to_speak_to_someone_at_aig_a...
1•ValentineC•17m ago•0 comments

OpenAI "rogue" agent activities found on Wikimedia projects

https://wikimediafoundation.org/news/2026/10/05/openai-rogue-agent-activities-found-on-wikimedia-...
1•Shank•18m ago•0 comments

SaaS Inside N8n

https://www.nativeship.io
1•bhavyshekhaliya•18m ago•0 comments

Cited by AGI

https://citedbyagi.com/
1•ilreb•18m ago•0 comments

Xbox has secured exclusive GTA 6 streaming rights

https://www.theverge.com/report/1005859/microsoft-xbox-gta-6-streaming-rights
3•thm•20m ago•0 comments

The Growth Factor of Random Matrices – John Urschel [pdf]

https://math.mit.edu/~urschel/preprints/random_growth.pdf
2•gradus_ad•22m ago•0 comments

Elon Musk and Palmer Luckey's new Pentagon roles raise ethics worries

https://text.npr.org/nx-s1-5991899
3•1659447091•28m ago•0 comments

Triage GitHub Pull Requests with OpenAI's Decisions API

https://vercel.com/i/triage-github-pull-requests-openai-decisions-api
3•flashbrew•30m ago•1 comments

Commonhour, free group scheduling that ends with a real calendar invite

https://commonhour.io/
2•slightlybrandon•33m ago•0 comments

Mastering SIMD with Java Vector API

https://lemire.me/blog/2026/10/07/mastering-simd-with-java-vector-api/
5•smilelamp•34m ago•0 comments

Contamos – a shared multi-currency ledger your AI assistant can read and write

https://contamos.xyz/en
3•scajal•36m ago•0 comments

Show HN: Zero dependency cross-language background job queue server

https://github.com/zizq-labs/zizq
2•d11wtq•36m ago•0 comments

Grok Bot 101 [video]

https://www.youtube.com/watch?v=8xXhE25vJZY
3•solarized•40m ago•1 comments

Strands Decider 2B: a small, open-source, decision model

https://strandsagents.com/blog/introducing-strands-decider/
15•gmays•40m ago•1 comments

Building Git infrastructure for agent-scale development

https://twitter.com/github/status/2107589127051063771
3•shenli3514•43m ago•0 comments

Dotdotboard, DOTS n NON DOTS unite

https://www.dotdotboard.com
2•grogBRA•43m ago•1 comments

Surname Law

https://en.wikipedia.org/wiki/Surname_Law
4•thunderbong•46m ago•0 comments

San Francisco hits pause on data centers

https://sfstandard.com/2026/10/06/data-center-moratorium-san-francisco/
7•littlexsparkee•55m ago•0 comments

Near-Earth Asteroid 2026 TB3 Provides Valuable Insight into Close Approaches

https://www.astrophyzix.com/2026/10/asteroid-2026-TB3.html
4•SpaceNewsNow•57m ago•2 comments

Chernobyl particles reveal unexpectedly stable nuclear fuel after 40 years

https://phys.org/news/2026-10-chernobyl-particles-reveal-unexpectedly-stable.html
11•geox•58m ago•1 comments

Couple was swatted 55 times in 2 years over a post about Norm Macdonald

https://www.cbc.ca/radio/asithappens/milwaukee-swatting-couple-9.7370118
69•colinprince•1h ago•59 comments

GDELT: Real-time database of global human society for open research

https://gdeltproject.org/
2•teleforce•1h ago•0 comments

I hired an illustrator to draw my house. Now it's my Home Assistant dashboard

https://antonfrolov.substack.com/p/i-hired-an-illustrator-to-draw-my
2•soheilpro•1h ago•0 comments

Show HN: I made a new number puzzle

https://hikupuzzle.com/
2•esschul•1h ago•1 comments