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Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•6mo ago

Comments

trane_project•6mo 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: Ultra-fast code retrieval without RAG – works with any coding agent

https://grebmcp.com
1•YashBudhia•19s ago•0 comments

Vibe Coding and BASIC

https://www.sicpers.info/2025/11/vibe-coding-and-basic/
1•mpweiher•2m ago•0 comments

PersonaKit: An insanely simple TypeScript SDK for building AI chat apps

https://github.com/albertnahas/persona-kit
1•albertnahas•5m ago•1 comments

IT specialist shortage [in Germany] almost gone

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2•slow_typist•6m ago•0 comments

Wasmtime Bactched Fuel Increments

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Physicist Says Consciousness Might Be Part of the Universe, Not Just the Brain

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Treasure hunt golden hare sold for £82k at auction

https://www.bbc.co.uk/news/articles/c87ld115ndvo
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https://www.youtube.com/watch?v=wl6z3rjUwRY
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The Full-Source Bootstrap: Building from source all the way down

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https://github.com/onurkun/RustAegis
1•kunzz•28m ago•0 comments

Petition to stop Microsoft at government in bavaria

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4•jlagetar•33m ago•2 comments

Web App Pre-Launch Checklist: Lessons from my own mistakes

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Five Years of Structural Deficit Broke the Silver Market

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2•jnord•38m ago•0 comments

Scientists may have solved why this ancient, advanced civilization vanished

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1•jnord•43m ago•0 comments

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The Preformamce Inequality Gap in 2026

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There are no moral laws out there

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https://youtu.be/f9YkL9_GfwQ
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https://github.com/chunpulee/hh.ht
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2•adrianbooth17•1h ago•0 comments

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How I won my first game jam

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Preserving Snow Crystals

https://www.its.caltech.edu/~atomic/snowcrystals/preserve/preserve.htm
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