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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: Transposify–change Spotify song key from your menubar for singing

https://github.com/evanhu1/transposify
1•evanhu_•1m ago•0 comments

Angry devs vow to flee GitHub Copilot as metered billing takes hold

https://www.theregister.com/ai-and-ml/2026/06/02/github-copilot-users-threaten-exit-as-metered-bi...
1•jay_kyburz•2m ago•0 comments

Neuropixels Opto: combining high-resolution electrophysiology and optogenetics

https://www.nature.com/articles/s41592-026-03076-z
1•bookofjoe•6m ago•0 comments

How to Optimize a CUDA Matmul Kernel for cuBLAS-Like Performance: A Worklog

https://siboehm.com/articles/22/CUDA-MMM
1•Areibman•8m ago•0 comments

Starbucks retired its AI agent just months after deployment

https://finance.yahoo.com/sectors/technology/articles/starbucks-quietly-retired-ai-agent-19225909...
1•cdrnsf•13m ago•0 comments

Show HN: Playing with genomics foundation models | Tutorial/Explainer article

https://dillondesilva.substack.com/p/playing-with-genomics-foundation
1•dillondesilva•15m ago•0 comments

More Time to Think

https://ma.ttias.be/more-time-to-think/
1•nreece•22m ago•0 comments

macOS Needs Its Grid Back

https://blog.hopefullyuseful.com/blog/macos-needs-its-grid-back/
8•ranebo•28m ago•0 comments

Interop 2026: Continuing to improve the web for developers

https://web.dev/blog/interop-2026
2•Topfi•31m ago•0 comments

Miasma supply chain attack: malicious code found in RedHat-cloud-services NPM

https://snyk.io/blog/miasma-supply-chain-attack-malicious-code-redhat-cloud-services-npm-packages/
1•jruohonen•33m ago•0 comments

Crystal Nights (2008)

https://www.gregegan.net/MISC/CRYSTAL/Crystal.html
4•rorylawless•34m ago•0 comments

Let the agents democratize open source

https://world.hey.com/dhh/let-the-agents-democratize-open-source-9fd630a9
2•doppp•36m ago•2 comments

DeepMind CEO says those cutting jobs because of AI 'lack imagination'

https://www.inc.com/jessica-stillman/nobel-prize-winner-demis-hassabis-says-ai-job-cuts-are-dumb-...
4•cpeterso•36m ago•0 comments

AI costs how much? GitHub Copilot users react to new usage-based pricing system

https://arstechnica.com/ai/2026/06/ai-costs-how-much-github-copilot-users-react-to-new-usage-base...
2•spenvo•40m ago•0 comments

Show HN: NUA an agent that tests for product correctness

https://trynua.dev/
5•Paster335•41m ago•2 comments

Building an Open-Source Verilog Simulator with AI: 580K Lines in 43 Days

https://normalcomputing.com/blog/building-an-open-source-verilog-simulator-with-ai-580k-lines-in-...
2•hasheddan•47m ago•0 comments

US Online Banking Security Fail

https://adir1.com/2026/online-banking-security-fail
1•adir1•48m ago•2 comments

BorrowSanitizer: Find Rust aliasing violations even with FFI

https://github.com/borrowSanitizer/bsan
1•afdbcreid•49m ago•0 comments

How the hell is Groq raising more money?

https://www.zach.be/p/how-the-hell-is-groq-raising-more
3•hasheddan•51m ago•0 comments

Building a life and shipping code: An immigrant's journey

https://ranpara.net/posts/the-outsider-who-shipped-anyway/
2•DevarshRanpara•57m ago•0 comments

Chinese firm developing AI to predict dissent, leaked documents show

https://www.nytimes.com/2026/06/01/us/politics/china-ai-predicting-dissent.html
2•wunderlotus•57m ago•1 comments

Show HN: Native Markdown Reader for macOS

https://github.com/creativefisher/mdreader
1•intrepidsoldier•58m ago•0 comments

aweskills: Let Your AI Agent Manage skills for You

https://aweskill.webioinfo.top/articles/let-your-ai-agent-manage-aweskill-for-you/
1•mugpeng•1h ago•0 comments

Colorado Rolls Back Landmark AI Governance Law

https://www.bankinfosecurity.com/colorado-rolls-back-landmark-ai-governance-law-a-31804
2•mooreds•1h ago•0 comments

Response to Cegłowski on Superintelligence (2017)

https://intelligence.org/2017/01/13/response-to-ceglowski-on-superintelligence/
1•Jach•1h ago•0 comments

Vegvisir – Agentic Harness Built for Software Developers

https://github.com/Honorbound-Innovation/Vegvisir-harness
2•unkn0wnable•1h ago•1 comments

Show HN: Ported Cerebras REAP to MLX – Prune MoE Experts on a MacBook

https://github.com/egesabanci/reap-mlx
1•egesabanci•1h ago•0 comments

Tiny Guyana poised for big Iran oil gains and growth strains

https://www.reuters.com/business/energy/tiny-guyana-poised-big-iran-oil-gains-growth-strains-2026...
1•JumpCrisscross•1h ago•0 comments

LLM and Clojure

https://tusshah.codeberg.page/
1•mmts•1h ago•0 comments

Anthropic files for blockbuster initial public offering

https://www.ft.com/content/4f82f41c-24e7-4323-899a-17a04badd29e
2•geoffbp•1h ago•0 comments