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Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•10mo ago

Comments

trane_project•10mo 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: SideX – VS Code rebuilt on Tauri instead of Electron (96% smaller)

https://github.com/Sidenai/sidex
1•KendallCBooker•4s ago•0 comments

AWS S3 Intros Account-Regional Namespaces, Ending 18 Years of Name Collisions

https://www.infoq.com/news/2026/03/s3-account-regional-namespaces/
2•rbanffy•4m ago•0 comments

Trump is a Godly man. He's working for God

https://old.reddit.com/r/Christianity/comments/1plt97g/trump_is_a_godly_man_hes_working_for_god_he/
2•GreenSalem•6m ago•0 comments

Go: Do you need a repository layer on top of sqlc?

https://rednafi.com/shards/2026/03/repository-layer-over-sqlc/
2•TobiasBerg•10m ago•0 comments

Should AI have the right to say 'No' to its owner?

https://github.com/Jang-woo-AnnaSoft/execution-boundaries
2•Jang-woo•10m ago•1 comments

Show HN: Tmux-agent-status – a tmux sidebar for monitoring AI coding agents

https://github.com/samleeney/tmux-agent-status
1•samleeney•11m ago•0 comments

Why full-stack post-quantum cryptography cannot wait

https://blogs.cisco.com/networking/why-full-stack-post-quantum-cryptography-cannot-wait
1•anonhaven•12m ago•0 comments

Bringing Clojure programming to Enterprise (2021)

https://blogit.michelin.io/clojure-programming/
2•smartmic•12m ago•0 comments

Garbage Collection: From First Principles to Modern GC in Java, Go and Python

https://shbhmrzd.github.io/systems/garbage-collection/memory-management/2026/04/01/garbage-collec...
1•signa11•15m ago•0 comments

Claude Code /buddy – what is it?

1•aledevv•15m ago•0 comments

What Exoskeleton Technology Learned from One User

https://spectrum.ieee.org/exoskeleton-user-experience
2•rbanffy•16m ago•0 comments

Claude Code internals from the source leak, packaged as reusable skills

https://github.com/agentic-utils/skills/tree/main/plugins/claude-code
2•brtkwr•16m ago•0 comments

Emulating old OS X versions with QEMU – 82MHz

https://82mhz.net/posts/2026/03/emulating-old-os-x-versions-with-qemu/
1•rbanffy•19m ago•0 comments

Gridfinity Catalog

https://github.com/jeffbarr/gridfinity-catalog
1•tie-in•20m ago•0 comments

Show HN: Running LLM on smartwatch – found llama.cpp loading model twice in RAM

1•perinban•20m ago•0 comments

Opus 4.6 is in an unuseable state

https://old.reddit.com/r/ClaudeCode/comments/1s6fwoo/opus_46_is_in_an_unuseable_state_right_now/
1•madihaa•25m ago•1 comments

Show HN: My D&D combat-tracker is finally online

https://topoftheround.com
1•kristophph•27m ago•0 comments

Pupils in England are losing their thinking skills because of AI, survey suggest

https://www.theguardian.com/technology/2026/apr/02/pupils-england-losing-thinking-skills-because-...
4•chrisjj•29m ago•1 comments

The Comforting Lie of SHA Pinning

https://www.vaines.org/posts/2026-03-24-the-comforting-lie-of-sha-pinning/
1•dr_sausages•34m ago•0 comments

"The Best Code Is No Code At All" (2007) – vibe coding is its villain

https://blog.codinghorror.com/the-best-code-is-no-code-at-all/
1•sushilk1991•36m ago•1 comments

The Stages of AI Grief

https://deknijf.com/posts/stages-of-ai-grief/
1•rdeknijf•37m ago•0 comments

OpenEdgeCGRA – An Open-Hardware Coarse Grained Reconfigurable Array (CGRA)

https://github.com/esl-epfl/OpenEdgeCGRA
3•radenmuaz•47m ago•0 comments

They Planned Their Escape: A Systems Architect's Guide to the Iran Trade Scandal

https://60tb.tech/posts/iran-trade-scandal
6•mstrslv•48m ago•3 comments

Delta 104 A330 São Paulo suffers uncontained engine failure [video]

https://www.youtube.com/watch?v=Dtf96Flyy1o
1•burnt-resistor•49m ago•1 comments

Midicrossword

https://midicrossword.org
1•midic•49m ago•0 comments

MacMendeleev

https://twitter.com/stevesi/status/2039473062387834940
1•tosh•50m ago•0 comments

Am I a Tech Bro?

https://amiatechbro.com
3•microflash•51m ago•0 comments

Python All the Way Down: Speed-of-Light CUDA Without Leaving Python

https://www.nvidia.com/en-us/on-demand/session/gtc26-s81531/
1•pjmlp•53m ago•1 comments

Blackouts and Byteouts

https://pulse.internetsociety.org/en/blog/2026/04/blackouts-and-byteouts-what-happens-to-internet...
1•jruohonen•55m ago•0 comments

Nur

https://blog.cloudflare.com/post-quantum-warp/
2•Nurmyn•55m ago•0 comments