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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/

Go Hug an Open Source Maintainer (and Is Rsync Slop Now?)

https://techstackups.com/articles/the-rsync-thing-and-why-you-should-be-nice-to-open-source-maint...
1•ritzaco•39s ago•0 comments

Tell HN: Meta's AI support feature allows Instagram accounts to be stolen

1•parable•53s ago•0 comments

Mapa.ua – Ukraine War Map

https://mapa.ua/
1•airlabs-co•2m ago•0 comments

Can I just say f*** AI, f*** AI, f*** AI? [video]

https://www.youtube.com/shorts/0z7Q0Bg9TAY
1•tcp_handshaker•2m ago•0 comments

Show HN: Font Wizard Pro – a font manager for iPhone and iPad

https://apps.apple.com/us/app/font-wizard-pro-font-manager/id352966034
1•stalinkay•2m ago•0 comments

Simple systems are the best systems

https://jerodsanto.net/2026/05/simple-systems-are-the-best/
2•jerodsanto•6m ago•0 comments

Economic Growth and Community Well-Being Are Not Opposites

https://www.civicbrand.com/insights/articles/economic-growth-and-community-well-being-are-not-opp...
1•mooreds•8m ago•0 comments

Beyond the API: Why Critical Infrastructure Is Going Streaming

https://schematichq.com/blog/beyond-the-api-why-critical-infrastructure-is-going-streaming
2•mooreds•8m ago•0 comments

Tiendli – e-commerce, reservations and marketplace for Latam SMEs

https://tiendli.com
2•zuomy•11m ago•0 comments

Spaniel – OpenTelemetry viewer for local development (Postman for your traces)

https://github.com/zfogg/spaniel
1•zfogg•12m ago•0 comments

It's Not Just X. It's Y

https://mail.cyberneticforests.com/its-not-just-data-its-post-training/
2•mooreds•14m ago•0 comments

Linear CEO Responds to Corgi (YC S24) CEO on Grindmaxxing

https://twitter.com/karrisaarinen/status/2061139112426623054
3•hbcdbff•15m ago•0 comments

Atherton spent $145K to delay train electrification. The rest of us paid $400M

https://peninsulaforeveryone.org/blog/atherton-spent-145k-to-delay-caltrain-electrification-the-r...
1•mslate•17m ago•0 comments

Fish Sleep a Lot Like Us. (They Even Nap.)

https://www.nytimes.com/2026/05/27/science/fish-sleep-a-lot-like-us-they-even-nap.html
1•cainxinth•19m ago•0 comments

Ask HN: Do you use Cloudflare bot protection? If so, why do you use it?

1•Velocifyer•20m ago•0 comments

Agent-stack – one command to make any repo token-efficient for Claude Code

https://github.com/drmahdikazempour/agent-stack
1•mahdikaz•21m ago•0 comments

G7 Agrees on Shared Language Around Open-Source AI, Open Weights AI

https://www.phoronix.com/news/G7-On-Open-Source-AI
1•winter_blue•23m ago•0 comments

JavaScript Crossword

https://lyra.horse/fun/jscrossword/
3•marvinborner•25m ago•0 comments

Show HN: Pictolab (online HDR image editor)

https://pictolab.io/
2•ChadNauseam•26m ago•1 comments

What Is Code

https://martinfowler.com/articles/what-is-code.html
3•wapasta•32m ago•0 comments

Pixelnet – The social network for game developers

https://pixelnet.flarum.cloud
2•telui•32m ago•1 comments

The need for a socialist planned economy (2021)

https://www.marxist.ca/article/the-need-for-a-socialist-planned-economy
4•vhantz•33m ago•1 comments

New in Svelte – June 2026

https://svelte.dev/blog/whats-new-in-svelte-june-2026
2•levmiseri•36m ago•0 comments

Development Containers

https://containers.dev/
3•hecanjog•40m ago•0 comments

A (small) language model walks through its training text

https://github.com/chrishwiggins/shannon-language-model
3•raybb•41m ago•0 comments

Converting ISO Country Codes to Flag Emojis

https://danq.me/2026/05/31/iso-country-codes-to-flags/
3•bovermyer•44m ago•0 comments

Show HN: Orchid Mantis – A PoC in Rust for Zero Knowledge Proofs of Exploit

https://github.com/unprovable/OrchidMantis
2•unprovable•45m ago•1 comments

When an agent can explain anything, what is the role of human-centric docs?

https://www.dbreunig.com/2026/05/31/what-do-humans-need-from-docs.html
3•dbreunig•48m ago•0 comments

We Built a Real-Time AI Research Collaborator into Our Jot Writing Tool

https://medium.com/@vektormemory/we-built-a-real-time-ai-research-collaborator-into-our-jot-writi...
2•vektormemory•49m ago•0 comments

Show HN: Llmff v1.0 FFmpeg for Inference

https://github.com/syndicalt/llmff
3•syndicalt•52m ago•0 comments