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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/

Awesome Version Managers

https://github.com/bernardoduarte/awesome-version-managers
1•saikatsg•3m ago•0 comments

How to use Linux vsock for fast VM communication

https://popovicu.com/posts/how-to-use-linux-vsock-for-fast-vm-communication/
1•mfrw•9m ago•0 comments

Black Friday Deals for Developers and Tech Teams

https://github.com/Pimjo/black-friday-deals
1•vinishbhaskar•22m ago•1 comments

WhisperThunder – A New Fast, High-Quality Text-to-Video Model

https://www.whisperthunder.top/
2•RyanMu•23m ago•1 comments

Show HN: AI Agents for Customer Support

https://www.sparrowdesk.com/ref=hn
1•jgm22•23m ago•0 comments

Ask HN: As CTO, do you pick JavaScript/TS as the default stack?

1•sawirricardo•26m ago•1 comments

World War AI

https://www.epsilontheory.com/world-war-ai/
1•koolhead17•26m ago•0 comments

Show HN: I Am Building an Intuitive Database GUI for ClickHouse and Postgres

https://www.datacia.app
1•rwiteshbera•31m ago•0 comments

Lot Is Back

https://lot-systems.com
1•vadikmarmeladov•33m ago•0 comments

Billiard Fractals: The Infinite Patterns Hidden in a Rectangle

https://xcontcom.github.io/billiard-fractals/docs/article.html
2•grandpanda•34m ago•2 comments

TigerStyle: Coding philosophy focused on safety, performance, dev experience

https://tigerstyle.dev/
1•nateb2022•36m ago•0 comments

The weird technical limitations of the Nintendo 64 [video]

https://www.youtube.com/watch?v=DCt7UZkS-w4
1•azhenley•37m ago•0 comments

Beads – A memory upgrade for your coding agent

https://github.com/steveyegge/beads
2•latchkey•38m ago•0 comments

Modern Mermaid, a decent flowchart generator for writing documentation

https://modern-mermaid.live/
2•fragmede•45m ago•0 comments

Andrew Kelley removed his "monkeys" and "losers" references

https://web.archive.org/web/20251127021007/https://ziglang.org/news/migrating-from-github-to-code...
8•nikolay•46m ago•2 comments

I solo-developed a Call of Duty event clipper using Python and AI

1•niceshot-ai•1h ago•0 comments

Migrating to Positron, a next-generation data science IDE for Python and R

https://posit.co/blog/positron-migration-guides
4•ionychal•1h ago•1 comments

Show HN: AffiliateGrowthVault: Discover 2000 Affiliate Program Growth Strategies

https://affiliategrowthvault.com/
1•tejas3732•1h ago•0 comments

Can I Port Sonic to the Amiga from the Sega Megadrive?

https://youtu.be/Xb94oUw7_K4
1•bane•1h ago•0 comments

James Webb Space Telescope reveals new view of dying star 'Red Spider Nebula'

https://indianexpress.com/article/technology/science/james-webb-space-telescope-reveals-new-view-...
1•ashishgupta2209•1h ago•0 comments

Pretrain a Bert Model from Scratch

https://machinelearningmastery.com/pretrain-a-bert-model-from-scratch/
3•tzury•1h ago•2 comments

The SWE-Bench Illusion

https://www.microsoft.com/en-us/research/publication/the-swe-bench-illusion-when-state-of-the-art...
4•louiereederson•1h ago•2 comments

GitLab scan finds 17,000 secrets in public repos, leading to $9000+ in bounties

https://trufflesecurity.com/blog/scanning-5-6-million-public-gitlab-repositories-for-secrets
3•adrianwaj•1h ago•0 comments

Japan town retracts bear sighting warning sparked by AI image

https://www.japantimes.co.jp/news/2025/11/27/japan/society/japan-town-retracts-ai-bear-image/
2•geox•1h ago•0 comments

A world map where anyone can plant a digital bonsai

https://www.zen.com.ar/bonsais/
2•elandros•1h ago•2 comments

Pocketbase – open-source realtime back end in 1 file

https://pocketbase.io/
24•modinfo•1h ago•2 comments

Vintage Thanksgiving: Photos Showing How Families Gathered in 1950s and 1960s

https://rarehistoricalphotos.com/vintage-thanksgiving/
3•Brajeshwar•1h ago•0 comments

Show HN: AnyMusic – AI music generator (royalty‑free, songs,stems, lyrics)

https://anymusic.ai
1•lovelycold•1h ago•0 comments

China's BEV Trucks and the End of Diesel's Dominance

https://cleantechnica.com/2025/11/26/chinas-bev-trucks-and-the-end-of-diesels-dominance/
48•xbmcuser•1h ago•18 comments

Japan's human washing machines will go on sale to general public

https://soranews24.com/2025/11/28/japans-human-washing-machines-will-go-on-sale-to-general-public...
3•zdw•1h ago•3 comments