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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/

Show HN: Knecht, a tool for building software factories for agencies

https://knecht.works
1•samuelreichor•3m ago•0 comments

Challenging AI

https://jensrantil.github.io/posts/challenging-ai/
1•JensRantil•3m ago•0 comments

I built a free tool that turns your resume into a personal website

https://self.cv/en
1•javier_yc_new•6m ago•0 comments

'Decimated My Life': The Risks of Pushing the Limits for Clicks

https://www.nytimes.com/2026/09/12/us/influencers-social-media-algorithm.html
1•thm•7m ago•0 comments

Show HN: QuantSupport, a Rust-based quant library

https://github.com/jmelo11/quantsupport
1•jmelo11•8m ago•0 comments

Show HN: Back Me Up – Find papers that back your argument

https://backmeup.loomlabs.au
1•argilium•8m ago•0 comments

SkyForce UI – React and Tailwind UI Suite with an Offline Electron Builder

https://skyforceui.com/
1•alexandrubulacu•8m ago•0 comments

A metasearch engine and privacy-first multi-engine search aggregator

https://ethfata.com/
1•massimilianosal•9m ago•1 comments

Show HN: Spec sheets for humans – who you are and how to work with you

https://spec.md
1•allanmaeots•14m ago•0 comments

Trying to understand SR-1 Freedom

https://mceglowski.substack.com/p/trying-to-understand-freedom
1•calcifer•15m ago•0 comments

Study links low-arousal background music to healthier food choices in restaurant

https://www.nature.com/articles/s41538-026-01146-2
1•giuliomagnifico•16m ago•0 comments

Keeping Markdown canonical once decisions start referencing each other

https://github.com/FrancisMarzynski/operating-memory-public
1•francismarzynsk•17m ago•0 comments

OpenAI's SWE-bench harness relies on unisolated host Docker sockets

https://github.com/SWE-bench/SWE-bench/issues/144
1•amoriz•17m ago•0 comments

The Git Cheat Sheet

https://devopscycle.com/blog/the-ultimate-git-cheat-sheet
2•MrLA•19m ago•1 comments

Obsidian Vault to Enterprise Company Brain

https://www.ssp.sh/blog/from-obsidian-to-enterprise-company-brain/
2•interstingstuff•21m ago•0 comments

Adam Conover explains how YouTube ruined everything

https://www.theverge.com/podcast/991471/adam-conover-youtube-tv-media-union-labor-ai
1•DavideNL•22m ago•0 comments

The terminal should not own the work

https://lezli01.is-a.dev/vincent/docs/why/the-terminal-should-not-own-the-work.html
2•whatsthatandwhy•25m ago•1 comments

Osborne Computer's Bankruptcy and the Osborne Effect

https://dfarq.homeip.net/osborne-computers-bankruptcy-and-the-osborne-effect/
1•giuliomagnifico•31m ago•0 comments

Show HN: Control Claude Code from your Tesla's screen

https://teslacode.dev
1•kvakkefly•38m ago•2 comments

CSS Text-Box-Trim

https://developer.chrome.com/blog/css-text-box-trim
1•dsego•39m ago•1 comments

Pythoncall.jl – Python and Julia in Harmony

https://github.com/JuliaPy/PythonCall.jl
2•TheWiggles•42m ago•0 comments

Alternatives to MinIO for single-node local S3

https://rmoff.net/2026/01/14/alternatives-to-minio-for-single-node-local-s3/
2•rmoff•44m ago•0 comments

I built a Grok Bot inspired theme for Hermes Desktop client

https://github.com/guidsen/hermes-grok-bot-skin
1•guidsen•46m ago•0 comments

Show HN: A reader ranked Indian news platform powered by feed

https://news.lokutu.com
1•reactivematter•48m ago•0 comments

RFC 10042: Post-Quantum/Traditional Hybrid Key Exchange in SSH

https://www.rfc-editor.org/info/rfc10042/
1•Alien1Being•49m ago•0 comments

Einride, Lidl deploy first cab-less autonomous truck in Germany

https://www.reuters.com/business/retail-consumer/einride-lidl-deploy-first-cab-less-autonomous-tr...
1•JumpCrisscross•49m ago•0 comments

How much should lenders charge hyperscalers?

https://www.ft.com/content/ba38df40-9898-48a0-bc9e-39d8a3da4305
1•JumpCrisscross•50m ago•0 comments

CrofAI gets exposed as an OpenRouter wrapper, shuts down

https://www.reddit.com/r/opencodeCLI/comments/1wgdkjr/crofai_cheapest_inference_provider_in_the_w...
2•jonatron•51m ago•0 comments

Go forth and multiply May 10 – 100 – 1000 servers spark up

https://cavallette.noblogs.org/2026/09/10100
1•electricant•55m ago•0 comments

YouTube has banned Dmitry "Savromat" Chernyshevsky

4•eimrine•55m ago•0 comments