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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/

Docker Sandboxes – Disposable, isolated sandboxes for AI agents

https://www.docker.com/products/docker-sandboxes/
1•etoxin•1m ago•0 comments

Decart Exploring Sale, Possibly SpaceX

https://www.calcalistech.com/ctechnews/article/hjhzrluuml
1•Taikhoom2010•1m ago•0 comments

Zooza

https://www.zooza.online/
1•majklesko•4m ago•0 comments

What is WAL backpressure, and why does ClickHouse Managed Postgres need it?

https://clickhouse.com/blog/wal-backpressure-clickhouse-managed-postgres
2•saisrirampur•7m ago•0 comments

Escaping the LLM Coding Rat Race

https://aaronstannard.com/escaping-ai-coding-ratrace/
1•kiyanwang•10m ago•0 comments

Production support agents that read your code and your database, via MCP

https://medium.com/@rahulgolwalkar/the-support-agent-that-actually-reads-your-code-and-your-produ...
1•rahulgolwalkar•13m ago•0 comments

Show HN: Teaching agents how to play Factorio (using RLM, GEPA)

https://github.com/ukituki/dspy-factorio/
1•ukituki•13m ago•0 comments

We are still early (quiz for the graph we all know)

https://early.stevenmoody.com/
1•tillcarlos•16m ago•1 comments

Seas have hit hottest temperature on record for July

https://www.theguardian.com/environment/2026/aug/10/global-seas-hottest-temperature-july-scientists
3•johnshades•27m ago•0 comments

Thai school shooter learnt how to use guns via social media

https://www.bbc.com/news/articles/cy07dern0n0o
2•vinni2•28m ago•0 comments

How Much Does Web Hosting Cost in 2026? Prices Compared

https://veerhost.com/how-much-does-web-hosting-cost/
5•betterornotss•30m ago•0 comments

Monopoly Round-Up: Regulation of engagement algorithms is on the horizon

https://www.thebignewsletter.com/p/monopoly-round-up-the-biggest-sexual
3•chmaynard•39m ago•0 comments

Archive.st - Archive a Webpage

https://archive.st/
4•frozenseven•46m ago•1 comments

Qwen-MM-Plugins

https://github.com/QwenLM/Qwen-MM-Plugins
3•pretext•46m ago•0 comments

Why do we assume everyone should be working?

https://wilsoniumite.com/2026/08/10/why-do-we-assume-everyone-should-be-working/
19•Wilsoniumite•47m ago•6 comments

Therapy Needs to Get Help

https://www.nytimes.com/2026/08/09/opinion/therapy-neuroscience-perception.html
2•ed•48m ago•0 comments

PON-Beam: Notification-Oriented Beam Erlang VM

https://github.com/matheuscamarques/pon_beam
2•wut42•52m ago•0 comments

Ask HN: Do people with authism have emotions?

1•soltanov•54m ago•2 comments

Harry Potter almost derailed a major UK interconnector project

https://www.rechargenews.com/grid/how-harry-potter-almost-derailed-a-major-uk-interconnector-proj...
2•riffraff•55m ago•0 comments

Show HN: Memcode AI goes open source with Claude Code inspired coding agent

https://github.com/memcode-ai/memcode
2•timerwin•58m ago•0 comments

Hello

1•pranavgawas-pro•1h ago•0 comments

Act like it is science

https://marginalrevolution.com/marginalrevolution/2026/08/act-like-it-is-science.html
3•thedreammachine•1h ago•0 comments

md-whispr

https://twitter.com/stanlalanne/status/2086675864276566196
1•sharpshootersl•1h ago•1 comments

AI Coding Clients Are Reading Each Other's Personal Instructions

https://runtimewire.com/article/ai-coding-clients-are-reading-each-other-s-personal-instructions
2•ryanmerket•1h ago•0 comments

Copy-paste email templates for chasing overdue invoices

https://invoice-email-template.surge.sh/
1•lmv_builds•1h ago•0 comments

Take-home assessments to be banned in school AI overhaul

https://www.smh.com.au/national/nsw/take-home-assessments-to-be-banned-in-radical-hsc-overhaul-20...
1•Alien1Being•1h ago•0 comments

HCCL: Collective Communication for Meta Training and Inference Accelerators

https://arxiv.org/abs/2608.00358
1•matt_d•1h ago•0 comments

Migrate from GitHub Container Registry (GHCR) to Vercel Container Registry (VCR)

https://vercel.com/kb/guide/migrate-ghcr-to-vcr
1•flashbrew•1h ago•0 comments

Docker Compose concepts map to Vercel

https://vercel.com/kb/guide/docker-compose-concepts-on-vercel
2•flashbrew•1h ago•0 comments

Training neural nets on Apple Neural Engine via reverse-engineered private APIs

https://github.com/maderix/ANE
1•dyzone•1h ago•0 comments