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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/

Qwen3.8-Flash-Next non-uniform quantization runs on 2 RTX3090s

https://huggingface.co/pfeifferj/Qwen3.8-Flash-Next-GSQ-RCO-GGUF
1•pfeifferj•2m ago•0 comments

Tiny League – compare small LLMs easily

https://tinyleague.nunodonato.com/
1•nunodonato•4m ago•1 comments

Anthropic's AI architect argued that discrimination could combat stigmas

https://www.europesays.com/people/38239/
1•like_any_other•4m ago•1 comments

The Case for Free Intelligence

https://jadidbourbaki.substack.com/p/the-case-for-free-intelligence
1•pptadversary•7m ago•0 comments

Show HN: Do Not Build – measure a software market before you build in it

https://donotbuild.com/verdicts
1•andrecacador•8m ago•0 comments

There are only twelve 4x4 sudoku grids and 85632 puzzles

https://baldino.dev/blog/there-are-only-twelve-4x4-sudokus/
1•fanf2•11m ago•0 comments

When the fractional part of a float fixes your shader

https://crocidb.com/post/when-the-fractional-part-of-a-float-fixes-your-shader/
1•birdculture•12m ago•0 comments

Variance of random greedy independent sets in triangle-free graphs

https://zenodo.org/records/22738145
1•shaikhmubin•13m ago•0 comments

Proposed Rule: Eliminating the Discretionary 60-Day Grace Period

https://www.regulations.gov/document/USCIS-2026-0364-0001/comment
50•la64710•15m ago•19 comments

Show HN: Deslop Your TS Codebases

https://github.com/maharshi365/deslop
1•maharship2022•16m ago•0 comments

Show HN: Trackd – a Gmail subscription tracker with no bank login

https://trackd.deanware.com
1•deanandreakis•17m ago•0 comments

How much of "write simply" is just survivorship bias?

https://greyenlightenment.com/2026/09/13/how-much-of-write-simply-is-just-survivorship-bias/
1•paulpauper•17m ago•0 comments

Is the AI Apocalypse for Real? What the intelligence community thinks

https://www.kenklippenstein.com/p/is-the-ai-apocalypse-for-real
1•Refreeze5224•18m ago•1 comments

AI 'kill switch' may need to be mandatory, Anthropic co-founder says

https://www.bbc.co.uk/news/articles/cqgk5e2j0gg8o
1•chrisjj•18m ago•1 comments

The Jenna Set (2005)

https://strangehorizons.com/wordpress/fiction/the-jenna-set/
1•bucket2015•18m ago•0 comments

Show HN: Direct SQL Access to Your QuickBooks Data

https://instabooks.io/docs/db
4•swannodette•19m ago•1 comments

"Do You Still Read the Code?"

https://zanlib.dev/blog/do-you-still-read-the-code/
1•speckx•23m ago•0 comments

How I Won $750k With this Drone [video]

https://www.youtube.com/watch?v=kXqXWcw-hSI
1•seanbrodie•24m ago•1 comments

AirBaltic files for Chapter 11 bankruptcy as Iran war costs bite

https://www.reuters.com/world/airbaltic-files-chapter-11-bankruptcy-new-york-2026-09-14/
3•avalexandrov•24m ago•0 comments

Micro Mock – instant OpenAPI mock server in VS Code, with chaos testing

https://github.com/SamirHodzic/micro-mock
2•samirh•29m ago•0 comments

Prompts Aren't Real

https://evaluation.club
2•mcfunley•34m ago•0 comments

You need another HTML abstraction

https://github.com/spcbeck/ouroboros-html
2•karlbarks•38m ago•0 comments

The Depression Thing (2017)

https://zachholman.com/posts/the-depression-thing
3•joebig•38m ago•0 comments

A Beginning for Mathematics

https://proofsandprompts.com/2026/09/14/a-beginning-for-mathematics/
15•pact_inference•39m ago•1 comments

97% of US database administrators are running obsolete programs

https://www.zdnet.com/business/why-companies-use-outdated-dbms-percona-report/
1•CrankyBear•41m ago•1 comments

One monkey mind's 10 days of silence

https://notetoself.studio/post/one-monkey-mind-s-10-day-silent-meditation-course/
2•Eridanus2•43m ago•0 comments

Ask HN: Is your AI LLM based web service secure from prompt injection?

2•roschdal•45m ago•1 comments

Submit your ideas for Interop 2027

https://webkit.org/blog/18283/submit-your-ideas-for-interop-2027/
1•stwrt•46m ago•0 comments

The Cool Numbers' Club at PostHog

https://coolnumbersclub.posthog.com/
1•rbaudibert•46m ago•0 comments

Valve's Steam Frame costs $1,059

https://www.theverge.com/games/994376/valve-steam-frame-vr-headset-price-release-date
4•sbulaev•46m ago•1 comments