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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/

Funding better evaluations of AI's impact on wellbeing

https://www.anthropic.com/news/wellbeing-research-grants
1•surprisetalk•1m ago•0 comments

Show HN: A portable evidence record for what an AI agent ran

https://trace.agentrust-io.com/
1•mosiddi•2m ago•0 comments

Achieving Out of Order in My CPU

https://www.outercloud.dev/blogs/riscv-3/
1•outercloud•2m ago•0 comments

Intel Diamond Rapids the 2027 Intel Xeon at Hot Chips 2026

https://www.servethehome.com/intel-diamond-rapids-the-2027-intel-xeon-at-hot-chips-2026/
1•ksec•2m ago•0 comments

A Haiku maker for digital artists

https://www.goodboy.ninja/apps/haiku
1•goodboyninja•3m ago•0 comments

Thinking Is Slow. Copying Is Fast

https://michaelgv.uk/posts/2026/08/thinking-is-slow-copying-is-fast/
1•NesquikMike•3m ago•0 comments

US judge postpones Lockerbie bombing trial over new evidence

https://www.scmp.com/news/world/united-states-canada/article/3365118/judge-postpones-us-trial-lib...
1•Markoff•4m ago•0 comments

Branded Types and Connascence of Execution

https://www.dearlordylord.com/blog/branded-types-connascence-of-execution/
1•Firfi•6m ago•1 comments

Ora benchmarks every major AI agent on Vercel – Customers

https://vercel.com/customers/how-ora-benchmarks-every-major-ai-agent-on-vercel
1•kyisaiah47•6m ago•0 comments

Run Minecraft in a Windows Sandbox

https://cua.ai/docs/how-to-guides/sandbox/minecraft
3•someguy101010•7m ago•0 comments

Windows Syscall Tables

https://github.com/hfiref0x/SyscallTables
1•wolfi1•7m ago•0 comments

Christopher Hitchens's Ten Commandments – Vanity Fair [video]

https://www.youtube.com/watch?v=v-63cTYJDCA
1•nomilk•7m ago•0 comments

Recommendations When Using LLM-Backed GenAI Systems for FOSS Contributions

https://sfconservancy.org/llm-gen-ai/llm-backed-generative-ai-recommendations.html
3•smartmic•8m ago•0 comments

Show HN: CanvasForMusic – I made a free Spotify Canvas maker that doesn't suck

https://canvasformusic.com
1•matherslabs•9m ago•0 comments

Twinly Lab – AI Twin Marketplace for Creators

https://twinlylab.com/
1•aleksnowacki•10m ago•0 comments

GrapheneOS Apps

https://www.sacredheartsc.com/blog/grapheneos-apps/
1•cullumsmith•10m ago•0 comments

What Is the Point of the DMA?

https://daringfireball.net/2026/08/what_is_the_point_of_the_dma
1•MBCook•11m ago•0 comments

Show HN: TheGitAI – A model-agnostic coding agent for your terminal

https://thegit.ai/
2•waximabbax•13m ago•0 comments

Auditing 5,284 dbt models across 13 public repos for analytics-agent readiness

https://blog.getcassis.com/dbt-context-for-analytics-agents/
1•matthieu_bl•14m ago•1 comments

Show HN: ToolHub – Free browser based tools that process files locally

https://toolhub.divyanshupatel.com
1•divyanshupatel_•15m ago•0 comments

Alabama Coming for OpenAI

https://www.cnn.com/2026/08/24/tech/openai-subpoena-hugging-face-attorney-general-alabama
3•vc14•16m ago•2 comments

An Introduction to Canvas in GNU Emacs

https://monadicsheep.org/blog/an-introduction-to-canvas-in-emacs.html
2•chiply•16m ago•0 comments

New to Hacker News

3•akhtaaar•16m ago•2 comments

Show HN: Fingerink – Write with your finger on old Kindle Paperwhite

https://github.com/SMUsamaShah/fingerink.koplugin
1•smusamashah•17m ago•1 comments

Show HN: minuteboard – an editorialized imageboard with a minutes based economy

https://scramblecrossing.net/
1•concraper•17m ago•0 comments

Hall of Hallucinated Citations in Published Papers

https://veruscite.com/hallucinations
2•apwheele•19m ago•0 comments

PgDog vs. RDS Proxy

https://pgdog.dev/blog/pgdog-vs-rds-proxy
2•levkk•20m ago•0 comments

Developer Hiring and the Market for Lemons

https://danluu.com/hiring-lemons/
1•rzk•21m ago•0 comments

Webbynode Bang for Buck: Hetzner CPX22 at $23, Still a Bargain?

https://webbynode.com/articles/bang-for-buck-3-hetzner-cpx22-nuremberg
1•gsgreen•21m ago•0 comments

Weird Websites

https://webernaut.com/weird-websites
3•gregsadetsky•21m ago•0 comments