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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/

Musical composition based on Nobel Prize winner Anne L'Huillier's physics

https://www.youtube.com/watch?v=pBsI1eJqqQ8
1•fjalarhl•6m ago•0 comments

Why one broken pod sends you fifty alerts

https://blog.kwatch.dev/one-failure-fifty-alerts
1•abahmed•10m ago•0 comments

Writing a DSL for high performance parallel programming in OxCaml

https://blog.janestreet.com/writing-a-dsl-for-high-performance-parallel-programming-in-oxcaml/
1•birdculture•10m ago•0 comments

Show HN: Zero-RNG algebraic audit of codon syntax across 141M codons in RefSeq

https://github.com/Dr-Logvinovich/codon-torus-syntax
2•DRLogvinovich•17m ago•0 comments

I bricked my smart ceiling fan, then reverse-engineered it back to life

https://ahmedmassoud.me/blog/reverse-engineering-my-smart-ceiling-fan/?ref=hn
3•ahmedwalid05•20m ago•0 comments

The cmake.org certificate expired again

https://cmake.org/
2•debugnik•23m ago•0 comments

Some old bit.ly links get redirected

https://twitter.com/stabilitytheory/status/2121895502560055496
2•taubek•23m ago•0 comments

Taking AI Seriously

https://borretti.me/article/taking-ai-seriously
2•bananaflag•25m ago•0 comments

Thoughts on memory layers like mem0

1•anshmalik2002•35m ago•0 comments

Codex is deprecating plan mode

https://github.com/openai/codex/issues/18490#issuecomment-6890525683
1•EnnioEvo•36m ago•0 comments

Hacker News Daily

https://lopespm.com/hackernews-daily/
1•lopespm•37m ago•0 comments

TingLongWu – local, offline meeting translation (listen and speak)

https://github.com/sunososobro-hub/tinglongwu
1•sosobro•42m ago•0 comments

Show HN: Diagnosed with diabetes at 16, I built Diabic for World Diabetes Day

https://diabic.com
2•shahriarpshuvo•42m ago•0 comments

Terence Tao and Peter L.: Live Math with Open Math OS [video]

https://www.youtube.com/watch?v=rCZFomL5WBg
1•vismit2000•44m ago•0 comments

Blog on Multiagent Interaction Protocols

https://masr.gitlab.io/blog/
1•ioper•49m ago•1 comments

Show HN: Kasa, simplest budgeting app you can find

https://kasafinance.online/
1•emirhanozsoy•51m ago•0 comments

Open Source Motorcycle Infotainment

https://gitlab.com/FalkF/hackasaki-spinbridge
2•usernam33•51m ago•1 comments

Most of AI moats are just fuel

https://adlrocha.substack.com/p/adlrocha-most-of-ai-moats-are-just
1•iLuddite•55m ago•0 comments

Gitly: lightweight, self-hosted GitHub/GitLab alternative written in V

https://github.com/vlang/gitly
2•modinfo•57m ago•0 comments

A Pile of MCP Connectors Is Not a Context Engine

https://getunblocked.com/blog/mcp-connectors-are-not-a-context-engine/
1•fagnerbrack•1h ago•0 comments

Leo gets a birthday bash, 75 years after clocking in

https://www.theregister.com/offbeat/2026/11/15/leo-gets-a-birthday-bash-75-years-after-clocking-i...
1•defrost•1h ago•0 comments

Turn any image into emoji art, in the browser

https://www.thousandtools.com/image-to-emoji/
1•vaibhavvudayagi•1h ago•0 comments

Show HN: Vantage-V-AI – 2-bit ternary KV-cache with attention sinks

https://github.com/khoadev-vn/VANTAGE-V-AI
1•Anh_khoa•1h ago•0 comments

Periodic-Oriented Programming for First Robotics

https://bvisness.me/periodic-oriented-programming/
1•joshcsimmons•1h ago•0 comments

Skyfall Attack: Microarchitectural Data Sampling on AMD

https://skyfall-attack.github.io/
1•ersinesen•1h ago•0 comments

Israel: Making the Holy Land Burn

https://www.aljazeera.com/opinions/2026/11/15/israel-making-the-holy-land-burn
3•hebelehubele•1h ago•0 comments

Show HN: Can a VPN be decentralised.. I think it's the best for homelabs

https://github.com/CLoaKY233/kith
5•laysheth•1h ago•0 comments

Proof Number search: exhaustively search a game tree to prove win or lose

https://minimax.dev/docs/ultimate/pn-search/
1•fanf2•1h ago•0 comments

India's voter-roll software flags twins but lets two men be each other's father

https://diagramchasing.fun/2026/karnataka-sir
2•amnbh•1h ago•0 comments

King Æthelstan founded England in927. Why don't we celebrate that anniversary?

https://www.theguardian.com/commentisfree/2026/nov/14/king-athelstan-england-1100-anniversary-2027
3•YeGoblynQueenne•1h ago•0 comments