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Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•11mo ago

Comments

trane_project•11mo 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/

In Praise of Aegis Authenticator (and KDE Connect)

https://agateau.com/2026/in-praise-of-aegis-authenticator/
2•agateau•1m ago•0 comments

Tech oligarchs reshape humanity while billionaires of old seem quaint

https://www.theguardian.com/technology/2026/mar/08/billionaires-tech-oligarchs
3•robtherobber•2m ago•0 comments

US/China talks to make sure non-state actors don't get a hold of these AI models

https://www.cnbc.com/2026/05/14/us-china-ai-rules-bessent-us-lead.html
2•nl•3m ago•0 comments

Show HN: Running the second public ODoH relay

https://numa.rs/blog/posts/odoh-anonymous-dns-without-an-account.html
2•rdme•4m ago•0 comments

Show HN: NoPoint – Pitch decks vibe coded instead of clicked (open source)

https://nopoint.app
1•mewc•5m ago•1 comments

Debankd, a Financial Censorship Monitor

https://debankd.org/
1•kokkis•5m ago•1 comments

Show HN: Bhatti – self-hosted runtime for your harness engineering

https://bhatti.sh
1•sahil-shubham•5m ago•0 comments

SenseNova-U1 Technical VAE-Free Pixel-Level Flow Matching 32xCompression [pdf]

https://github.com/OpenSenseNova/SenseNova-U1/blob/main/docs/pdf/SenseNOVA_U1.pdf
1•DanielWen666•5m ago•0 comments

Kay Nishi and the Meeting That Started MS-DOS

https://nemanjatrifunovic.substack.com/p/kay-nishi-and-the-meeting-that-started
1•whobre•9m ago•0 comments

Show HN: Local-first Kubernetes YAML visualizer (no server, no LLM)

https://openlume.com/explain/yaml
1•shadaba•9m ago•0 comments

Web Agent: Browser-native agent · profiles · tools

https://github.com/nikola66/web-agent
1•nikola66•10m ago•0 comments

Show HN: Zenflow a multi-agent orchestration and workflow engine

https://github.com/zendev-sh/zenflow
1•vietanh85•11m ago•0 comments

Pipes, Forks, and Zombies

https://cs61.seas.harvard.edu/wiki/2017/Shell3/
1•tosh•11m ago•0 comments

I Tracked Down the Hidden Workers Secretly Powering ChatGPT [video]

https://www.youtube.com/watch?v=aooiDA-AsNo
2•ShinyLeftPad•23m ago•0 comments

Officially, Marco Rubio is still banned from China. So how is he in Beijing?

https://www.washingtonpost.com/world/2026/05/14/officially-marco-rubio-is-still-banned-china-so-h...
2•_tk_•23m ago•0 comments

The First Wafer Scale Company – Trilogy Systems Story Part 1 (2024)

https://thechipletter.substack.com/p/wafer-scale-trilogy-systems-part
1•klelatti•24m ago•0 comments

Economics of Expanding Medical Assistance in Dying to Vulnerable Populations

https://journals.sagepub.com/doi/10.1177/00302228251323299
1•NalNezumi•28m ago•0 comments

Hiring Trends in Mid 2026: What Founders Are Getting Wrong

https://foundersarehiring.com/hiring-resources/hiring-trends-mid-2026
1•niksmac•30m ago•0 comments

AI Font Detector: Smart Ways to Identify Fonts with Precision

https://www.tumblr.com/tracksaasly/816569321203613696/ai-font-detector-smart-ways-to-identify-fon...
1•emmaroutines•30m ago•0 comments

Non-interactive Claude Code usage ejected from subscriptions

1•mdemare•31m ago•0 comments

Why Ruby Is the Better Language for LLM-Powered Development

https://www.bytecode.hr/posts/why-ruby-is-the-better-language-for-llm-powered-development
1•faangguyindia•32m ago•0 comments

Firefox extension to browser the web in a 1990s GeoCities retro style

https://addons.mozilla.org/en-US/firefox/addon/geocities-time-machine/
2•whatsupdog•33m ago•1 comments

GitLab's Reliability Crisis: Developers Are Fed Up and Going Public

https://gitlab.com/gitlab-com/gl-infra/production/-/work_items/22104
2•joshwoodcock•34m ago•0 comments

James Reason, Who Used Swiss Cheese to Explain Human Error, Dies at 86 (2025)

https://www.nytimes.com/2025/03/13/science/james-reason-dead.html
1•zeristor•34m ago•2 comments

Remove .zig Files from Bun

https://github.com/oven-sh/bun/pull/30680
1•quasigloam•37m ago•0 comments

High-Entropy Alloy

https://en.wikipedia.org/wiki/High-entropy_alloy
1•leonidasrup•41m ago•0 comments

Azure Container Apps express overview

https://learn.microsoft.com/en-us/azure/container-apps/express-overview
1•mariuz•45m ago•0 comments

Perceptron Mk1 highly performant video analysis model 80% cheaper than big three

https://venturebeat.com/technology/perceptron-mk1-shocks-with-highly-performant-video-analysis-ai...
1•rswerve•46m ago•0 comments

ByteHug Technologies

https://play.google.com/store/apps/details?id=com.bytehug.daydonedayplanner&hl=en_US
1•AnjuAlias•47m ago•0 comments

Show HN: Midjourney Prompt Generator

https://www.midjourney-prompt-generator.eu/
1•manol_ai•51m ago•1 comments