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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/

The fix for messy AI agent ecosystems might be here and it's open source

https://www.zdnet.com/article/agentic-ai-foundation-fix-messy-agent-ecosystems/
1•CrankyBear•2m ago•0 comments

Dark mode now available on Simon Willison's blog

https://simonwillison.net/2025/Dec/10/dark-mode/
1•macote•2m ago•0 comments

China government-approved AI hw suppliers: Cambricon and Huawei in, Nvidia out

https://www.tomshardware.com/tech-industry/artificial-intelligence/china-starts-list-of-governmen...
1•SanjayMehta•4m ago•1 comments

FastEmbed-Rs – Generate Vector Embeddings and Rerank Docs Locally

https://old.reddit.com/r/coolgithubprojects/comments/1p12gnz/fastembedrs_generate_vector_embeddin...
1•PaulHoule•8m ago•0 comments

San Francisco woman gives birth in a Waymo self-driving taxi

https://apnews.com/article/baby-born-waymo-san-francisco-6bdd0fb853330f806adf5a7ca225ec8e
2•jsphweid•9m ago•0 comments

Privacy-first budgeting tool – all data stays in localStorage, works offline

2•cobrapi•11m ago•0 comments

Do 8051/8031 assembly like its 1984

https://rodyne.com/?p=3225
2•boznz•15m ago•1 comments

Galea – the most sophisticated biosensing headset

https://galea.co/
1•embedding-shape•17m ago•0 comments

Is your website Archive Ready?

https://archiveready.com/
2•pabs3•20m ago•2 comments

Gogs 0-Day Exploited in the Wild

https://www.wiz.io/blog/wiz-research-gogs-cve-2025-8110-rce-exploit
1•rkta•20m ago•0 comments

Show HN: Testify to your NIST CSF maturity with evidence to prove it

https://github.com/clay-good/nisify
1•hireclay•22m ago•0 comments

U.S. Seizes Oil Tanker Off Venezuelan Coast, Escalating Pressure on Maduro

https://www.nytimes.com/2025/12/10/us/politics/oil-tanker-seized-us-venezuela-trump.html
2•zzzeek•24m ago•0 comments

Claude Code Space Invaders Game

https://space-invaders.centminmod.com/
2•vbtechguy•25m ago•1 comments

Returning Astronauts forget gravity exists for a while [video]

https://www.youtube.com/shorts/cQ3Msm659Fw
1•lifeisstillgood•25m ago•0 comments

Midjourney Is Alemwjsl

https://www.aadillpickle.com/blog/midjourney-is-alemwjsl
1•aadillpickle•31m ago•0 comments

Testing a 40M view/day meme-page ad network for b2c products (early case study)

https://findclout.com/marketing/
1•jonahbuilds•32m ago•1 comments

Canada DND scrambles to figure out how to mobilize and equip a citizens' army

https://www.cbc.ca/news/politics/army-mobilization-canada-troops-9.7009323
3•Teever•33m ago•0 comments

Something Ominous Is Happening in the AI Economy

https://www.theatlantic.com/economy/2025/12/nvidia-ai-financing-deals/685197/
1•zerosizedweasle•33m ago•0 comments

Undeciphered Writing Systems

https://en.wikipedia.org/wiki/Undeciphered_writing_systems
3•frozenseven•34m ago•0 comments

My experience with Lean 4 for general programming

https://quamserena.com/2025-12-10/my-experience-with-lean-4-for-general-programming
1•quamserena•37m ago•0 comments

How People Use AI Agents

https://www.perplexity.ai/hub/blog/how-people-use-ai-agents
1•gmays•39m ago•0 comments

Agency Is Eating the World

https://giansegato.com/essays/agency-is-eating-the-world
1•walterbell•40m ago•0 comments

Curiosity in Relationships

https://okaykoa.substack.com/p/curiosity-in-relationships
2•herbertl•41m ago•0 comments

Understanding Carriage

https://seths.blog/2025/12/understanding-carriage/
2•herbertl•46m ago•0 comments

From Llamas to Avocados: Meta's shifting AI strategy is causing confusion

https://www.cnbc.com/2025/12/09/meta-avocado-ai-strategy-issues.html
1•LopRabbit•47m ago•0 comments

Blue Origin Might Make Starship Obsolete

https://wlockett.medium.com/blue-origin-might-make-starship-obsolete-6bc011ae86d2
2•Zigurd•52m ago•0 comments

A differentially private framework for gaining insights into AI chatbot use

https://research.google/blog/a-differentially-private-framework-for-gaining-insights-into-ai-chat...
1•tzury•56m ago•0 comments

HTTP load generator, inspired by rakyll/hey with TUI animation

https://github.com/hatoo/oha
2•overflowy•58m ago•0 comments

Why no one talks about React2Shell?

https://elenacross7.medium.com/react2shell-my-droplet-joined-a-botnet-c4850b079515
9•skilldeliver•59m ago•3 comments

Mosquitoes found in Iceland for first time as climate crisis warms country

https://www.theguardian.com/environment/2025/oct/21/mosquitoes-found-iceland-first-time-climate-c...
2•LopRabbit•59m ago•0 comments