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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/

1•adamzwasserman•36s ago

Show HN: Hallint – lint AI-generated code for security issues

https://github.com/Asyncinnovator/hallint
1•coder_xyz•1m ago•0 comments

The Small Steps Trick That Works EveryTime

https://lazydevcoder.medium.com/the-small-steps-trick-that-works-every-time-74cf3e092429
1•rammy1234•2m ago•0 comments

Bringing back Eisenhower's process for getting rid of process

https://www.governance.fyi/p/bringing-back-eisenhowers-process
1•bigbobbeeper•3m ago•0 comments

The Ring That Wouldn't Shrink: Building Musklr's Rest Timer Animation in SwiftUI

https://musklr.com/blog/2026/swiftui-matchedgeometryeffect-hero-animation/
2•badgag•5m ago•1 comments

AI doesn't know how to forgive and cannot forget

https://tejassuds.com/blog/ai-cannot-forget
2•tejassuds•7m ago•1 comments

Goroutines for Python

https://robertsdotpm.github.io/software_engineering/goroutines_for_python.html
2•Uptrenda•7m ago•0 comments

Pearson's Anti-Piracy Vendor Takes Down Best-Selling Author's Own GitHub Repo

https://torrentfreak.com/pearsons-anti-piracy-vendor-takes-down-best-selling-authors-own-github-r...
3•HieronymusBosch•7m ago•0 comments

Do Different GenAI Tools Provide Different Financial Recommendations?

https://www.financialplanningassociation.org/learning/publications/journal/JUN26-do-different-gen...
1•littlexsparkee•7m ago•0 comments

12-year-old founds AI-powered receptionist business

https://www.businessinsider.com/gen-alpha-founder-ai-receptionist-small-businesses-young-geniuses...
1•ajdude•10m ago•0 comments

Chinese CZ-10B rocket booster is caught by cables in successful landing

https://twitter.com/raz_liu/status/2075526859941691886
1•LorenDB•12m ago•0 comments

NEO's Hands – An API to the Physical World

https://www.1x.tech/discover/neos-hands
1•migueloller•12m ago•1 comments

Ryanair Passenger Sucked Toward Broken Window After Midair Engine Failure

https://simpleflying.com/ryanair-thessaloniki-diversion-window-damage/
1•amelius•13m ago•0 comments

Predict AI's impact on creativity by studying what Python did to programming

https://old.reddit.com/r/Lightbulb/comments/1usl6bv/idea_predict_ais_impact_on_writing_and_creati...
1•amichail•15m ago•0 comments

Show HN: Mojave Paint for macOS, edit images like it's 1999

https://mojavepaint.app/
2•jpsimons•15m ago•0 comments

Test

https://news.ycombinator.com/submit
1•alex20465•16m ago•0 comments

GitSwitch – Manage multiple GitHub accounts without SSH config headaches

https://www.npmjs.com/package/@yinklylab.dev/gitswitch
1•lexico4real•17m ago•0 comments

MCP Server on Edge Compute 167 Lines of Python

https://lowlatencyclub.ai/blog/posts/edge-mcp-server-deploy-python
1•harpreetseehra•17m ago•0 comments

The Night Feeling

https://cleberg.net/blog/the-night-feeling.html
1•meysamazad•17m ago•0 comments

Terraforming Mars: Mass, Forcing, and Industrial Throughput Constraints

https://arxiv.org/abs/2603.00402
1•iljah•19m ago•0 comments

How I'm using CSS View Transitions on this blog

https://blog.omgmog.net/post/how-im-using-css-view-transitions-on-this-blog/
2•meysamazad•19m ago•0 comments

JellyFil ReviEwS (2026): We Tried It My Honest Review

https://gamma.app/embed/JellyFil-ReviEwS-2026-We-Tried-It-My-Honest-Review-1w1wv6vumlzptys
1•taqihays•19m ago•0 comments

The future of work: AI, juniors, and expectations

https://www.zeitgeistofbytes.com/p/the-future-of-work-ai-juniors-and
1•meysamazad•20m ago•0 comments

Tlbic v8.0 Appendix: Examining Bottom-Up Governance

https://drive.google.com/file/d/1cmTacZ9ruEVEr7I8ZEuzJ7od-7Yx40t-/view?usp=drive_link
1•michikawa59•24m ago•1 comments

OpenClaw vs. KiloClaw vs. Hermes Agent

https://3hcloud.com/blog/openclaw-vs-kiloclaw-vs-hermes-agent
1•Liriel•26m ago•0 comments

Xring: Crashing XQUIC with spec-compliant QPACK instructions

https://foxio.io/blog/xring-crashing-xquic-with-spec-compliant-qpack-instructions
2•PranaFlux•27m ago•0 comments

Promise Theory

https://en.wikipedia.org/wiki/Promise_theory
1•dmonay•28m ago•0 comments

Why Europe's tech ecosystem collapses in simulation (a causal-loop analysis)

https://hebelai.substack.com/p/why-europes-tech-ecosystem-collapses
4•bastbuch•32m ago•1 comments

Negative squaring – pre-tilted 3-bit quantization beat naive 4-bit

https://github.com/elpinyeknom/negative-squaring-/tree/main
2•faDOOM•35m ago•0 comments

Show HN: Airline pilot's interactive guide to aviation radio

https://jameshard.ing/posts/aviation-radio/
1•jamesharding•38m ago•4 comments