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TaskHub – Update

https://github.com/TaskHub-Server/TaskHub.Shared
1•andrey-serdyuk•34s ago•1 comments

The Commodore 64 is back on the production line for the first time in 30 years

https://www.techradar.com/computing/the-commodore-64-is-back-on-the-production-line-for-the-first...
1•indigodaddy•1m ago•0 comments

US Navy accused of cover-up over dangerous plutonium in San Francisco

https://www.theguardian.com/us-news/2025/nov/27/us-navy-san-francisco-plutonium
1•clanky•2m ago•0 comments

United Nations Convention Against Cybercrime

https://en.wikipedia.org/wiki/United_Nations_Convention_against_Cybercrime
1•numpad0•5m ago•0 comments

Show HN: MiKaDiv, the predecessor for a globally unifying standard for taxes

https://business.divizend.com
1•sigalor•5m ago•0 comments

Scheele's Green

https://en.wikipedia.org/wiki/Scheele%27s_green
1•thunderbong•7m ago•0 comments

Battlefield 6 – Anticheat Update – Season 1

https://store.steampowered.com/news/app/2807960/view/497213442478833989
1•embedding-shape•7m ago•0 comments

Before a Soyuz launch Thursday someone forgot to secure a 20ton service platform

https://arstechnica.com/space/2025/11/russian-launch-pad-incident-raises-concerns-about-future-of...
1•xoa•7m ago•0 comments

Sock Discovery Reveals Colorful Fashion Sense of Ancient Egyptian Children, 2018

https://www.thevintagenews.com/2018/10/15/socks/
2•romanhn•8m ago•0 comments

A320 worldwide temporarily grounded by Airbus over flight-control software issue

https://airlive.net/news/2025/11/28/breaking-multiple-a320-aircraft-worldwide-may-be-grounded-by-...
1•jMyles•9m ago•1 comments

Putting Rigid Bodies to Rest

https://hbaktash.github.io/projects/putting-rigid-bodies-to-rest/
2•todsacerdoti•10m ago•0 comments

Why not make all software compatible with all other software?

https://blog.hermesloom.org/p/the-one-digital-planetary-system
1•sigalor•10m ago•0 comments

Show HN: An infinite canvas notetaking app like OneNote with Markdown support

https://notanic.com
1•dolphin137•10m ago•0 comments

The Google Trends Spike Before the D.C. Shooting Raises New Questions

https://www.allenanalysis.com/p/the-google-trends-spike-before-the
4•kldavis4•11m ago•0 comments

"It Works on My Machine": The Psychology of Bad Code

https://shehackspurple.ca/2025/11/27/the-psychology-of-bad-code/
2•shehackspurple•11m ago•1 comments

The Engineering-Minded Product Manager

https://medium.com/@ryado/the-engineering-minded-product-manager-80f974dc8801
1•ryadh•13m ago•0 comments

OSS Friday Update – The Fiber Scheduler Is Taking Shape

https://noteflakes.com/articles/2025-11-28-friday-update
1•ciconia•15m ago•0 comments

Thought experiments on the computational theory of consciousness

https://joe-antognini.github.io/ml/thought-experiments-on-consciousness
1•antognini•16m ago•0 comments

What China will dominate next

https://www.economist.com/leaders/2025/11/27/what-china-will-dominate-next
1•bookofjoe•18m ago•1 comments

Nothing Better Than a Whole Lot of Books: In Praise of Bibliomania

https://lithub.com/nothing-better-than-a-whole-lot-of-books-in-praise-of-bibliomania/
1•pseudolus•18m ago•0 comments

North Korea's Dystopian Smartphones

https://www.the-express.com/news/world-news/173634/kim-jong-un-bizarre-control-tactics-revealed
1•wjb3•21m ago•0 comments

Russian ICBM Launch Failure

https://twitter.com/liveuamap/status/1994450291740025272
3•defly•23m ago•0 comments

Scientists Just Unlocked Quantum Connections That Reach Across Continents

https://scitechdaily.com/scientists-just-unlocked-quantum-connections-that-reach-across-continents/
2•stOneskull•25m ago•0 comments

Retained vs. Immediate Mode GUI

https://github.com/ocornut/imgui/blob/master/docs/FAQ.md
1•michalsustr•25m ago•0 comments

Tattoo Ink Moves Through Body, Killing Immune Cells, Weakening Vaccine Response

https://www.swissinfo.ch/eng/tattoo-ink-moves-through-the-body,-killing-immune-cells-and-weakenin...
4•CharlesW•26m ago•1 comments

Open Review's Public Data

https://www.openreview.online/
1•sadrasabouri•26m ago•0 comments

Effective harnesses for long-running agents

https://www.anthropic.com/engineering/effective-harnesses-for-long-running-agents
5•diwank•35m ago•0 comments

Control the World for $1

https://www.controltheworld.io
1•hg30•35m ago•0 comments

FluentPrep AI – Practice Toefl Speaking with AI-Powered Feedback

https://www.fluentprep.online/
1•amscotti•36m ago•0 comments

US Energy Department Launches "Genesis Mission" to Transform Science Through AI

https://www.energy.gov/articles/energy-department-launches-genesis-mission-transform-american-sci...
6•sxp•36m ago•1 comments
Open in hackernews

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/