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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/

Meta is reportedly building its own cloud business

https://www.engadget.com/2206249/meta-is-reportedly-building-its-own-cloud-business/
1•tcp_handshaker•45s ago•0 comments

What Can't Fable Do?

1•alimhaq•2m ago•0 comments

Flickr – Senior SRE – Remote (US) – Full-Time

https://www.flickr.com/jobs?gh_jid=7822735&gh_src=7b63e17d1
1•Photoworkisfun•3m ago•0 comments

Tidesman: Native MCP server for Apple Container's Linux container workflows

https://tidesman.dev/
1•JeronimoColon•3m ago•0 comments

Polymarket

https://unlimitedhangout.com/2026/06/investigative-series/the-secret-history-of-polymarket-part-1/
1•some-guy•4m ago•0 comments

Koah – Ad network built for AI

https://www.koahlabs.com
1•mkchoi212•5m ago•0 comments

Code Reviews Don't Scale

https://medium.com/@ben.g.northmore/the-death-of-code-reviews-as-we-know-them-d9a3e8d6795e
1•surprisefox•5m ago•0 comments

Show HN: Forgejo Appliance, a private Git server based on OrbStack and Tailscale

https://github.com/highpost/forgejo-appliance
1•highpost•5m ago•1 comments

Why don't we get more daylight faster after the winter solstice?

https://www.rnz.co.nz/news/science-and-technology/650632/explainer-why-don-t-we-get-more-daylight...
3•billybuckwheat•6m ago•0 comments

SoftBank renews talks for $10B loan against OpenAI stake, adds concessions

https://www.reuters.com/legal/transactional/softbank-renews-talks-10-billion-loan-against-openai-...
1•JumpCrisscross•6m ago•0 comments

ZCode – Harness for GLM-5.2

https://zcode.z.ai/en
23•chvid•8m ago•138 comments

Meta's cloud plan is a hedge on Zuckerberg's AI capex, not the end of neoclouds

https://runtimewire.com/article/meta-compute-neocloud-ai-capacity-scarcity
1•ryanmerket•13m ago•0 comments

Ask HN: Do pull requests have value?

1•_RPM•18m ago•0 comments

Token economy

https://en.wikipedia.org/wiki/Token_economy
1•thecosas•18m ago•0 comments

I got tired of slow DB inserts, so I wrote a zero-syscall IPC in Go (18M TPS)

https://github.com/GenshIv/hft-ipc
1•ihariv•20m ago•0 comments

The Once and Future Fable #5

https://thezvi.substack.com/p/the-once-and-future-fable-5
1•paulpauper•28m ago•0 comments

Chip Off the Old Block

https://www.astralcodexten.com/p/chip-off-the-old-block
1•paulpauper•29m ago•0 comments

2026 Unslop Contest Results

https://www.hyperstitionai.com/unslop-results
1•paulpauper•29m ago•0 comments

Fable open sourced NanoClaw's agent factory. It cost $800

https://twitter.com/Gavriel_Cohen/status/2072432348805669139
12•benocodes•31m ago•7 comments

What has FIRE been doing in the AI space?

https://expression.fire.org/p/what-has-fire-been-doing-in-the-ai
2•Volodzko•31m ago•0 comments

Warning to millions as toxic air lung-penetrating particles across 10 states

https://www.dailymail.com/sciencetech/article-15944679/toxic-air-pollution-new-york-california.html
1•Bender•32m ago•1 comments

Show HN: ExpenseSpy – AI receipt scanner that exports to Excel, built solo

https://expensespy.com
3•cdogukank•35m ago•0 comments

Show HN: Moxie – an open-source money agent that can't act without your consent

https://github.com/JacobBrooke1/moxie
1•JacobBrooke24•38m ago•0 comments

Glibc Introduces /etc/tunables.conf For System-Wide Tunables

https://www.phoronix.com/news/Glibc-System-Tunables
8•Bender•40m ago•1 comments

wgpu v30 has been Released!

https://github.com/gfx-rs/wgpu/releases/tag/v30.0.0
1•bloky•40m ago•0 comments

The Safari MCP server for web developers

https://webkit.org/blog/18136/introducing-the-safari-mcp-server-for-web-developers/
2•pascoej•40m ago•0 comments

Stop sign

https://en.wikipedia.org/wiki/Stop_sign
1•thecosas•40m ago•0 comments

Ask Hacker News: mute notifications while driving

1•alpple•41m ago•2 comments

Lake Powell Water Critically Low; Wyoming Expects More Demand On Flaming Gorge

https://cowboystatedaily.com/2026/07/01/as-lake-powell-nears-dead-pool-wyoming-cities-and-industr...
4•Bender•41m ago•0 comments

Japan has 41% of the 100-year companies – secrets of 1,447-year survival

https://www.j-times.org/en/media/articles/japan-shinise-1400-years-2026/
7•indynz•46m ago•1 comments