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Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•5mo ago

Comments

trane_project•5mo 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/

Ask HN: I feel Twitter's algorithm just changed. Is there any way to confirm it?

1•rcpt•46s ago•0 comments

Feel like a CIA agent securing your fortress The Anti-Looter Kit has it all

https://www.theantilooterkit.com/main/#aff=charlieknowsbest
2•charlieknsbest•2m ago•0 comments

How Nubank Built its in-house log platform

https://building.nubank.com/how-nubank-built-its-in-house-log-platform/
1•jcartw•2m ago•0 comments

Dive into the Vibes of Wellbeing with Spryfuel

https://www.spryfuel.com/en/
1•charlieknsbest•4m ago•0 comments

Wired and 404 Media make FOIA reporting free

https://freedom.press/issues/wired-and-404-media-make-foia-reporting-free-other-news-outlets-shou...
2•martey•8m ago•0 comments

Get Ready for Clojure, GPU, and AI in 2026 with CUDA 13.0

https://dragan.rocks/articles/25/Get-Ready-Clojure-GPU-AI-2026-CUDA-13
1•savodj•9m ago•0 comments

New Cellebrite capability obtained in Teams meeting

https://discuss.grapheneos.org/d/27698-new-cellebrite-capability-obtained-in-teams-meeting
2•morsch•10m ago•0 comments

What's the point of HTTP Signatures? (All open source)

https://orangestack.substack.com/p/integrity-driven-apis-http-message
1•joshfischer1108•11m ago•0 comments

Anchors don't work the way you think [video]

https://www.youtube.com/watch?v=FLvgeeJYAVQ
1•jotaen•12m ago•0 comments

EU country grouping cleared to build sovereign digital infrastructure

https://www.euractiv.com/news/eu-country-grouping-cleared-to-build-sovereign-digital-infrastructure/
2•ep_jhu•13m ago•0 comments

Grammarly is changing its name to Superhuman

https://www.theverge.com/news/808472/grammarly-superhuman-ai-rebrand-relaunch
1•chilipepperhott•15m ago•1 comments

Phone numbers for use in TV shows, films and creative works

https://www.acma.gov.au/phone-numbers-use-tv-shows-films-and-creative-works
3•nomilk•17m ago•1 comments

Show HN: AI Resource Manager

https://github.com/jomadu/ai-resource-manager
1•jomadu•17m ago•0 comments

Southwest upsets fliers with allergies by bringing pistachios on board

https://www.washingtonpost.com/travel/2025/10/30/southwest-flights-pistachio-controversy/
2•bookofjoe•19m ago•1 comments

Show HN: Socratic – Automated Knowledge Synthesis for Vertical LLM Agents

https://github.com/kevins981/Socratic
1•kevinsong981•20m ago•0 comments

The Great Firewall Part 1: The Dump

https://dti.domaintools.com/inside-the-great-firewall-part-1-the-dump/
1•speckx•20m ago•0 comments

Support the Future of Gnome

https://donate.gnome.org/
1•tokai•23m ago•0 comments

ChatGPT made me delusional [video]

https://www.youtube.com/watch?v=VRjgNgJms3Q
1•jsheard•23m ago•0 comments

Notes by djb on using Fil-C with Debian multiarch

https://cr.yp.to/2025/fil-c.html
1•fanf2•24m ago•0 comments

GHC Now Runs in the Browser

https://discourse.haskell.org/t/ghc-now-runs-in-your-browser/13169
2•Bogdanp•26m ago•0 comments

Open Source Proxy for Agents

https://github.com/rom-mvp/agentshield
1•desadas•27m ago•0 comments

What's Missing from Your Favorite Chocolate Bar? It May Be Chocolate

https://www.nytimes.com/2025/10/30/climate/candy-chocolate-cocoa-prices-climate-change.html
2•keithly•27m ago•0 comments

Averaging 10 PRs a day with Claude Code

https://theahura.substack.com/p/averaging-10-prs-a-day-with-claude
3•theahura•28m ago•0 comments

Snowy 2.0 will last 150 years and work with batteries to push out gas

https://techxplore.com/news/2025-10-white-elephant-snowy-years-batteries.html
1•PaulHoule•29m ago•0 comments

TrustMRR – Database of verified startup revenues

https://trustmrr.com
2•jshchnz•30m ago•0 comments

Denmark reportedly withdraws Chat Control proposal following controversy

https://therecord.media/demark-reportedly-withdraws-chat-control-proposal
7•layer8•30m ago•0 comments

Why do AI models use so many em-dashes?

https://www.seangoedecke.com/em-dashes/
1•alehlopeh•31m ago•0 comments

Coding on the iPad [video]

https://www.youtube.com/watch?v=Rptvh534lI4
2•mesmertech•31m ago•1 comments

Results from Blasting Yeast with UV Light

https://chillphysicsenjoyer.substack.com/p/results-from-blasting-yeast-with
2•crescit_eundo•31m ago•0 comments

Where do you stand on the better use of coding agents

2•mamdouh_ai•31m ago•0 comments