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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/

Show HN: AccInt – a Work Model for AI coding agents

https://accint.xyz/
1•maxbaluev•8m ago•0 comments

Raspberry Pi projects I'm self-hosting this year

https://www.xda-developers.com/raspberry-pi-projects-self-hosting-this-year-instead-of-paying-mon...
1•y1n0•9m ago•0 comments

Catjam 2026

https://itch.io/jam/catjam-2026
1•y1n0•11m ago•0 comments

Local-first open-source vibe-coded feelings wheel app

https://feel-forward.web.app
1•no_creativity_•11m ago•1 comments

Saasm (Software as a Slot Machine)

https://sammacginty.substack.com/p/saasm-software-as-a-slot-machine
1•sammacg•12m ago•0 comments

Anthropic disables access to Fable 5 and Mythos 5 to comply with government

https://www.cnbc.com/2026/06/12/anthropic-disables-access-to-fable-5-and-mythos-5-to-comply-with-...
1•y1n0•13m ago•0 comments

Has AI Killed How-To Nonfiction?

https://tim.blog/2026/06/12/has-ai-already-killed-nonfiction/
1•igonvalue•19m ago•0 comments

As a result of a US Government directive, we are suspending access to Fable 5

https://twitter.com/ClaudeDevs/status/2065597942602531163
10•plonkus•31m ago•1 comments

A Diary from the Psychic Capital of the World

https://www.theparisreview.org/blog/2026/06/12/diaries-from-the-psychic-capital-of-the-world/
1•zeech•33m ago•0 comments

Show HN: Open-source Git-like Markdown docs for humans and agents

https://www.datacompany.dev
1•jbuchananr•35m ago•0 comments

We've suspended access to Claude Mythos 5 and Claude Fable 5

https://status.claude.com/incidents/s9w82lp9dcn9
3•jesse_dot_id•35m ago•0 comments

White House discussions are weighing giving CISA Mythos access

https://www.nextgov.com/artificial-intelligence/2026/06/white-house-discussions-are-weighing-givi...
2•WaitWaitWha•36m ago•0 comments

Learn and validate historical data modeling patterns

https://bitemporal-debugger.vercel.app
1•temp_debugger•37m ago•0 comments

GM's New Battery Storage System Could Threaten Tesla's Power Empire

https://www.msn.com/en-us/autos/news/gm-s-new-battery-storage-system-could-threaten-tesla-s-power...
1•MilnerRoute•37m ago•0 comments

Language Transfer

https://www.languagetransfer.org
1•jbm•38m ago•0 comments

US Government directive to suspend access to Fable 5 and Mythos 5

https://www.anthropic.com/news/fable-mythos-access
411•Dylan1312•42m ago•206 comments

Nix Koans

https://rgbcu.be/blog/nix-koans/
1•RGBCube•47m ago•0 comments

Kryptos: Paradigm Puzzles

https://paradigm.xyz/kryptos-ctf/pk1
1•nycdatasci•49m ago•0 comments

Four Programming Languages You've Probably Never Heard of [video]

https://www.youtube.com/watch?v=_rHoHLanuQg
2•marvinborner•51m ago•0 comments

Sodium Bicarbonate for In-Hospital Cardiac Arrest – A Randomized Clinical Trial

https://jamanetwork.com/journals/jama/fullarticle/2850405
1•bookofjoe•56m ago•0 comments

Solid-state batteries are now powering EVs in the real world

https://electrek.co/2026/06/11/solid-state-batteries-now-powering-evs-in-real-world/
2•breve•57m ago•0 comments

How to prepare for interview in the new AI era

https://medium.com/@amney.mounir/data-analyst-interviews-are-changing-with-ai-and-you-better-be-r...
2•amnito•58m ago•2 comments

The social consequences of AI delegation

https://arxiv.org/abs/2606.11058
1•Anon84•58m ago•0 comments

No-One Is Going to Buy Your Videogame

https://illomens.itch.io/no-one-is-going-to-buy-your-game
6•generichuman•59m ago•0 comments

We recommend Highway over std:SIMD

https://github.com/google/highway/blob/master/g3doc/std_simd_comparison.md
1•ndiddy•59m ago•0 comments

Oracle and the AI Boom's Hidden Debt Bomb

https://www.inc.com/fast-company-2/oracle-ai-boom-hidden-debt-nvidia-jensen-huang/91357055
3•PessimalDecimal•1h ago•0 comments

Socratic Spiral Learning with LLMs

https://abhichavali.com/posts/socratic-spiral-learning-with-llms/
2•chabi•1h ago•1 comments

Show HN: Spin up MCU simulations like VMs

https://simulator86.com/blog/simulator86-sdk/
1•grog_6•1h ago•0 comments

Trump admin blocks foreign access to Anthropic's most powerful AI models

https://www.axios.com/2026/06/12/anthropic-trump-mythos-fable-national-security
21•some-guy•1h ago•6 comments

Show HN: Full-self browsing - agents can drive any web task using this CLI Skill

https://www.webcli.sh/?hn
1•keepamovin•1h ago•0 comments