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Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•10mo ago

Comments

trane_project•10mo 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/

I built an O(1) physics engine to stop LLM hallucinations in construction

https://flooring-ai-matrix.streamlit.app/
1•svid•3m ago•0 comments

"An Endless Stream of AI Slop"

https://arxiv.org/abs/2603.27249
2•jruohonen•10m ago•0 comments

Cursor rules that prevent AI from hallucinating bad Next.js code

https://github.com/vibestackdev/vibe-stack
1•vibestackdev•10m ago•0 comments

Positron Flux: from DORA dashboards to explaining what changed

https://sklivvz.com/posts/introducing-positron-flux
3•sklivvz1971•12m ago•0 comments

Engineering Blog Posts from Top Tech Companies

https://www.engineering.fyi
1•abracos•13m ago•0 comments

Prompt intensity threshold effect on AI-generated invention quality (preprint)

https://zenodo.org/records/19347700
1•h_hasegawa•14m ago•0 comments

Causality optional? Testing the "indefinite causal order" superposition

https://arstechnica.com/science/2026/03/getting-formal-about-quantum-mechanics-lack-of-causality/
1•rbanffy•14m ago•0 comments

The Horrors That Could Lie Ahead If Vaccines Vanish

https://projects.propublica.org/childhood-vaccines-deaths-modeling/
3•littlexsparkee•20m ago•0 comments

Does RAG Help AI Coding Tools?

https://www.mikeayles.com/blog/rag-coding-tools/
1•mikeayles•20m ago•1 comments

What Happened to Procomm Plus

https://dfarq.homeip.net/what-happened-to-procomm-plus/
1•zoidb•21m ago•0 comments

HN: AI-native investing app that builds and adapts thematic portfolios to you

https://basketsai.com
1•pranav6226•22m ago•1 comments

The Racket Programming Language

https://www.racket-lang.org/
2•h4ch1•23m ago•0 comments

Golang Constmap by Daniel Lemire

https://twitter.com/lemire/status/2038320406432494059
2•pjf•23m ago•1 comments

What are the best resources to learn about Harness Engineering?

1•udayan_w•24m ago•0 comments

After 16 years and $8B, the military's new GPS software still doesn't work

https://arstechnica.com/space/2026/03/after-16-years-and-8-billion-the-militarys-new-gps-software...
2•rbanffy•25m ago•0 comments

Claude Code's source code has been leaked via a map file in their NPM registry

https://twitter.com/Fried_rice/status/2038894956459290963
31•treexs•27m ago•12 comments

LibreTranslate: Free and Open Source Machine Translation API

https://github.com/LibreTranslate/LibreTranslate
2•ahamez•30m ago•0 comments

David Foster Wallace and the problem of loneliness [video]

https://www.youtube.com/watch?v=FCfpOugmd9E
1•simonebrunozzi•32m ago•0 comments

£5M Funding for supply chain security innovation in UK

https://apply-for-innovation-funding.service.gov.uk/competition/2421/overview/3d6991fa-73b2-48c0-...
4•anonhaven•39m ago•0 comments

Tell HN: DeepL Moving Data to AWS

3•bilekas•40m ago•1 comments

The First Bullshit

https://www.joanwestenberg.com/the-worlds-first-bullshit/
2•viermalbe•41m ago•0 comments

Monitor Claude Code Usage with Grafana

https://braw.dev/blog/2026-03-28-monitor-claude-usage-with-grafana/
2•kisamoto•41m ago•1 comments

Databricks Compromised by TeamPCP

https://www.cryptika.com/teampcp-supply-chain-attack-allegedly-compromised-databricks-platform/
2•debarshri•43m ago•0 comments

Show HN: Stochos – Keyboard driven mouse control

https://github.com/museslabs/stochos
1•ploMP4•44m ago•0 comments

Fast and Gorgeous Erosion Filter

https://blog.runevision.com/2026/03/fast-and-gorgeous-erosion-filter.html
1•runevision•46m ago•1 comments

Tell HN: If your agent can create a PR, it can merge it too

https://github.com/orgs/community/discussions/182732
1•jamesfisher•49m ago•0 comments

The Reed and Pickup – The early internet was a feeling

https://reedandpickup.com/2026/03/30/the-early-internet-was-a.html
1•viermalbe•49m ago•0 comments

Caltech quantum startup Oratomic launches with achieving scaling breakthrough

https://www.oratomic.com/news/launch-announcement
1•chrysander•52m ago•1 comments

Vulniq AI: Autonomous Security Scanner for Any JavaScript/TS Codebase

https://github.com/JakubKontra/skills/blob/main/docs/vulniq.md
1•JakubKontra•54m ago•0 comments

Paris Saint-Germain Names Harvey The Official Legal AI Partner

https://www.harvey.ai/blog/paris-saint-germain-names-harvey-the-official-legal-ai-partner
1•salkahfi•54m ago•0 comments