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Show HN: A calm browser based physics game

https://samuria.online/drift/
1•samuria•52s ago•0 comments

Questions to ask when evaluating neurotech approaches

https://www.owlposting.com/p/questions-to-ponder-when-evaluating
1•abhishaike•1m ago•0 comments

Ceiling fans: the simple idea we keep screwing up [video]

https://www.youtube.com/watch?v=_KWdCqpXB7A
1•secret-noun•1m ago•0 comments

GM may ditch LFP batteries for future EVs

https://www.reuters.com/business/autos-transportation/gm-may-ditch-lfp-batteries-future-evs-2026-...
1•breve•1m ago•0 comments

I scanned 57 EU online stores for the Accessibility Act – avg 43/100

https://index.cirvgreen.com/report.html
1•NickCirv•2m ago•0 comments

I Build Developer Platforms for a Living. Then I Built One for a Trampoline

https://billgilleran.com/writing/building-a-platform-for-a-trampoline
1•rclairville•2m ago•0 comments

Show HN: Khwand – self-healing CI/CD for AI agents (GitHub App, Python-first)

https://wwww.khwand.com
1•FahadHafeezOff•2m ago•0 comments

Ford is building low-cost LFP battery cells to power its $30,000 EV pickup

https://electrek.co/2026/06/17/ford-begins-building-low-cost-lfp-batteries-for-30k-ev-pickup/
1•breve•3m ago•0 comments

Americans have never been healthier or more alone. Might these things be related

https://www.derekthompson.org/p/the-cult-of-the-enhanced-self
1•momentmaker•5m ago•0 comments

A Modern Proxmox Docker Architecture with Disposable VMs, VirtIO-FS, and ZFS

https://du.nkel.dev/blog/2026-05-16_rootless_docker_virtiofs_proxmox/
1•Helmut10001•5m ago•0 comments

Lore; next gen open source VCS

https://github.com/EpicGames/lore
1•dcu•6m ago•0 comments

An Interview with Michael Morton About E-Commerce in the Age of AI

https://stratechery.com/2026/an-interview-with-michael-morton-about-e-commerce-in-the-age-of-ai/
1•swolpers•9m ago•0 comments

Let me name things (my new side gig)

https://itwa.netlify.app
1•Mwalwala•10m ago•1 comments

Auditing LLM agents may require auditing the upstream feed

https://arxiv.org/abs/2606.00914
2•ranausmans•10m ago•0 comments

A New Era of Super-Hybrid Cars Is Coming

https://www.nytimes.com/2026/06/17/business/extended-range-electric-vehicles-erevs.html
1•Kaibeezy•11m ago•0 comments

Password-stealing attack hits 75k Fortinet firewalls

https://www.theregister.com/cyber-crime/2026/06/17/massive-password-stealing-attack-hits-75k-fort...
1•pseudolus•14m ago•1 comments

Show HN: Causality Engine – Causal marketing attribution for e-commerce

https://www.causalityengine.ai
3•Sharanxxxx•15m ago•0 comments

Ask HN: Looking for a CI/CD project for my local lab

3•q8zd3•16m ago•2 comments

The crises are not stopping: why we urgently need an income floor system

https://autonomy.work/portfolio/the-crises-are-not-stopping-why-we-urgently-need-a-robust-cash-tr...
2•robtherobber•17m ago•1 comments

We sent 1k bots to a GA4 site. It counted every one as a real visitor

https://clickport.io/blog/ga4-bot-traffic-test
2•davidkarpik•17m ago•0 comments

A space telescope is falling to Earth. NASA is racing to rescue it

https://www.science.org/content/article/space-telescope-falling-earth-nasa-racing-rescue-it
2•pseudolus•17m ago•0 comments

Show HN: Cluely is easily detectable / detector source code

https://github.com/niravrohra/Honrly-app
2•nirav_rohra•18m ago•1 comments

Farage trying to block Britcoin plans that could be costly for billionaire donor

https://www.theguardian.com/politics/2026/jun/18/nigel-farage-trying-block-britcoin-crypto-plans-...
2•pseudolus•20m ago•0 comments

Excessive nil pointer checks in Go

https://konradreiche.com/blog/excessive-nil-pointer-checks-in-go/
1•ingve•21m ago•1 comments

Online Guitar Tuner – Free Guitar Tuning with Microphone

https://easytuner.org
2•bitvvip•23m ago•0 comments

Hospitals and universities repurposing drugs at 90% lower cost

https://www.kcl.ac.uk/news/hospitals-and-universities-repurposing-drugs-at-90-lower-cost
9•giuliomagnifico•24m ago•3 comments

Save tokens with Claude Code with this plugin

https://github.com/vukkt/token-warden
2•vukkt•25m ago•0 comments

Digit regeneration in mice stimulated by sequential treatment with FGF2 and BMP2

https://www.nature.com/articles/s41467-026-72066-8
1•bookofjoe•26m ago•0 comments

Egypt – Syria undersea cable has been cut in a 'systematic sabotage campaign'

https://www.tomshardware.com/networking/undersea-cable-connecting-egypt-and-syria-has-been-cut-da...
2•giuliomagnifico•27m ago•0 comments

.gitignore Isn't the Only Way to Ignore Files in Git

https://nelson.cloud/.gitignore-isnt-the-only-way-to-ignore-files-in-git/
2•FergusArgyll•28m ago•0 comments
Open in hackernews

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/