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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/

Is HTTP Basic Auth Broken in Chromium?

1•majorchord•1m ago•0 comments

"Bruh", "Cooked", etc. make it easier for ads to track you

1•DidYouKnowThat•2m ago•0 comments

Sen. Kennedy rails against AI developers as 'high IQ stupid people'

https://www.politico.com/news/2026/09/06/kennedy-ai-developers-high-iq-stupid-people-01066756
2•1vuio0pswjnm7•3m ago•0 comments

Risks Digest – April 2026, the final issue

https://catless.ncl.ac.uk/risks/34/91
1•everybodyknows•5m ago•1 comments

Show HN: Hound Media Server – Media Server Alternative to Plex+Stremio

https://github.com/Hound-Media-Server/hound
1•nearbyyak•6m ago•0 comments

Why India Baffles China

https://economist.com/asia/2026/09/06/why-india-baffles-china
1•andsoitis•6m ago•0 comments

Show HN: Wg-admin – web UI for an existing WireGuard host

https://github.com/logimaxx/wg-admin
1•vsergione•7m ago•0 comments

Beautiful Messaging at Scale

https://www.vestaboard.com/note-array
1•andsoitis•9m ago•0 comments

Try real Omarchy Linux in your browser

https://tryomarchy.dev/
3•emirb•9m ago•0 comments

Tell HN: OpenAI brings back 5 hour limit for plus and business standard users

2•spwa4•10m ago•1 comments

Why front ends fail when you approach them like a back end

https://marijkeluttekes.dev/blog/articles/2026/03/16/why-frontends-fail-when-you-approach-them-li...
1•birdculture•11m ago•0 comments

Show HN: A DIY pure sine-wave solar inverter I built from scratch

https://www.mch170.com/projects/mcinv
3•MCH170•11m ago•0 comments

Rttx – a tiling terminal for GNOME first stable release

https://github.com/IllyaYalovyy/rttx
1•zero-ground-445•11m ago•0 comments

MCP server architecture for platform teams

https://pipelineandprompts.com/posts/mcp-server-architecture-platform-engineering-kubernetes/
1•daytonflyers•12m ago•0 comments

Show HN: Real-time manga and manhwa translation from your phone

https://pawakalabs.com/products/madomi/
1•adibzaini•14m ago•1 comments

My full statement regarding DOOM Eternal (2022)

https://medium.com/@mickgordon/my-full-statement-regarding-doom-eternal-5f98266b27ce
1•CharlesW•15m ago•0 comments

NetBSD 11 from Scratch

https://meanmicio.org/2026/09/06/netbsd-11-from-scratch/
2•birdculture•16m ago•0 comments

Apple's "Think Different" inspired ad made by AI

https://twitter.com/Noahsarc1000/status/2096989380774903883
1•nhannguyenkooln•18m ago•1 comments

Ask HN: What LLM are you using?

1•daytonflyers•18m ago•0 comments

Using large language models for research in the natural sciences

https://github.com/Open-Science-Ledger/how-to-train-your-slop-cannon
1•mathgenius•27m ago•0 comments

Show HN: SharpLineup: fantasy football projections priced from betting markets

https://sharplineup.com
1•autoap•29m ago•0 comments

Israeli ministers keep telling everyone their brutal plans, why are they ignored

https://www.theguardian.com/commentisfree/2026/sep/07/israeli-ministers-brutal-plans-palestinians...
6•hebelehubele•30m ago•1 comments

Making software hurts now

https://notes.erlend.sh/3muwdtclths2d
3•erlend_sh•31m ago•1 comments

Where every AI coding tool keeps its config

https://github.com/moneytool/agentmeld/blob/main/docs/where-ai-coding-tools-keep-their-config.md
2•moneytool•31m ago•0 comments

Stockfish 19

https://stockfishchess.org/blog/2026/stockfish-19/
3•atiedebee•33m ago•0 comments

Benchmarks show scores. Dashboards show usage. What ships?

https://pragmatikos.ai/
1•judsd•34m ago•0 comments

Show HN: LLM Council: survival-of-the-fittest multi-modal deliberation

https://github.com/Moiz-I/council-of-claude
1•moiz-i•35m ago•0 comments

Show HN: Evidence-linked forensic financial investigation

https://exitprotocols.com/
1•cd_mkdir•37m ago•1 comments

Phairplay – AirPlay and Miracast for Android TV

https://github.com/mazer666/PhairPlay
1•theturtletalks•38m ago•0 comments

Do We Still Need Burp Suite for Web Security Testing?

https://medium.com/@Koukyosyumei/do-we-still-need-burp-suite-for-web-security-testing-00f068851d30
3•syumei•40m ago•1 comments