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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/

All the Government's 385,837 frames of UFO files released thus far

https://hypergrid.systems/war.gov-ufo-viewer/microfilm5
1•keepamovin•1m ago•0 comments

Ukraine accuses Russia of creating conditions for the spread of anthrax

https://outbreaknewstoday.substack.com/p/ukraine-accuses-russia-of-creating
1•pinewurst•6m ago•0 comments

Don't You Mean Extinct?

https://fabiensanglard.net/extinct/index.html
1•markus_zhang•6m ago•0 comments

Survival guide: Key advice for what to do if you find yourself in a wildfire

https://www.euronews.com/my-europe/2026/07/10/survival-guide-key-advice-for-what-to-do-if-you-fin...
2•rawgabbit•11m ago•0 comments

Small Inventors Are Being Squeezed by a Convoluted Patent Process

https://www.nationalreview.com/news/small-inventors-are-being-squeezed-by-a-convoluted-patent-pro...
3•petethomas•17m ago•0 comments

Show HN: We beat Anubis with our stealth MCP

https://tilion.dev/blog/anubis-proof-of-work
7•armanluthra_•24m ago•3 comments

Show HN: Quantum-Qec / Matrix-Free Quantum Homeostatic Engine(Blueprint)

https://github.com/PJHkorea/quantum-mesh-qec
2•PJHkorea•27m ago•1 comments

We Know Simple Fluids Can Flow. Turns Out, Some Can Fracture

https://www.quantamagazine.org/we-know-simple-fluids-can-flow-turns-out-some-can-fracture-20260710/
4•Anon84•29m ago•0 comments

Show HN: Confessor – replay what private info Claude Code accessed on your PC

https://github.com/ninjahawk/Confessor
4•ninjahawk1•32m ago•0 comments

Thoughts on the 1989 Film the Abyss (2024)

https://www.sffchronicles.com/threads/586366/
2•andsoitis•36m ago•0 comments

The Energetic Costs of Cellular Computation (2012)

https://arxiv.org/abs/1203.5426
3•lioeters•43m ago•0 comments

Largest housing affordability bill in decades becomes law

https://www.npr.org/2026/07/10/nx-s1-5885027/housing-bill-without-trump-signature
4•saucymew•45m ago•0 comments

Computation in Physical Systems

https://plato.stanford.edu/entries/computation-physicalsystems/
2•lioeters•48m ago•0 comments

Atlas: ROMbug Wants to Reinvent the Browser

https://rombug.com/
2•chainbuilder•59m ago•0 comments

AI notetakers promise easy meeting recaps, but some question their use

https://apnews.com/article/ai-notetaker-work-meetings-privacy-data-c700299371ca7cfec77dafdfb948067f
5•billybuckwheat•1h ago•2 comments

A Hundred Years Dry: The U.S. Navy's End of Alcohol at Sea

https://news.usni.org/2014/07/01/hundred-years-dry-u-s-navys-end-alcohol-sea
3•keepamovin•1h ago•0 comments

Neverclick: Desktop application for performing mouse actions with your keyboard

https://github.com/LazoVelko/neverclick
4•thunderbong•1h ago•0 comments

The logic behind Kirkland x Palantir

https://lexifina.com/blog/kirkland-palantir-partnership
2•alansaber•1h ago•0 comments

America Changed Me and Europe Was Wrong [video]

https://www.youtube.com/watch?v=fUd6QHUnLMk
3•keepamovin•1h ago•4 comments

I find AI roleplay therapeutic

https://chatbrat.ai/bratlog/ultimate-ai-roleplay-setup-guide-memory-lorebooks
2•henrypissler•1h ago•0 comments

Show HN: Levee – a self-tuning circuit breaker and concurrency limiter for Go

https://github.com/codemartial/levee
3•code_martial•1h ago•0 comments

RTX 5070 Ti throttles at 107C; Blackwell hotspot sensor readable via MODS tool

https://www.tomshardware.com/pc-components/gpus/hotspot-temperature-sensor-on-nvidias-blackwell-g...
3•sbulaev•1h ago•0 comments

Flock Camera Conspiracy, Prepare for Whats Coming [video]

https://www.youtube.com/watch?v=ZFim3j9s6ic
2•Bender•1h ago•0 comments

Frequently Asked Questions on Expertise

https://jtpeterson.substack.com/p/faq-on-expertise
3•jger15•1h ago•0 comments

What xAI's Grok Build CLI Actually Sends to xAI

https://gist.github.com/cereblab/dc9a40bc26120f4540e4e09b75ffb547
8•jhoho•1h ago•0 comments

Like a cheat code for your car: We investigate ECU tuning

https://arstechnica.com/cars/2026/07/like-a-cheat-code-for-your-car-we-investigate-ecu-tuning/
2•martincmartin•1h ago•0 comments

Apple Hide My Email bug, possibly related to disclosure vulnerability

https://lapcatsoftware.com/articles/2026/7/2.html
4•zdw•1h ago•0 comments

Firefox 12.58% for Desktop Browser Market Share in North America June 2026

https://gs.statcounter.com/browser-market-share/desktop/north-america
32•speckx•1h ago•14 comments

A Erlang style pure Scheme Webserver and further

https://igropyr.com
4•guenchi•1h ago•1 comments

Dismissive Dan's Review of the Overplane AI Coding Harness

https://www.overplane.dev/overview/dan/
4•mayank•1h ago•0 comments