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Bloom's two sigma problem (2020)

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

Comments

trane_project•8mo 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/

Muse: Cursor for Composing MIDI

https://www.muse.art/home
1•memalign•1m ago•0 comments

FBI unable to extract data from iPhone 13 in Lockdown Mode in high profile case [pdf]

https://storage.courtlistener.com/recap/gov.uscourts.vaed.588772/gov.uscourts.vaed.588772.35.0_1.pdf
1•armadyl•7m ago•1 comments

Optiwing – Keyword Grouping and PAYG SEO Tools

https://optiwing.com/
1•TasselHat•8m ago•1 comments

AI Motion Graphics Tool with good design and camera movements

https://www.freemotion.app/
1•jithin_g•11m ago•0 comments

The cumulative cost of additional wakefulness (2003)

https://pubmed.ncbi.nlm.nih.gov/12683469/
1•walterbell•13m ago•0 comments

The Sovereign AI Security Crisis: 42,000 Exposed OpenClaw Instances

https://maordayanofficial.medium.com/the-sovereign-ai-security-crisis-42-000-exposed-openclaw-ins...
2•salkahfi•13m ago•0 comments

Show HN: Sharing Agentic Stream of Consciousness

https://github.com/247arjun/ai-artifacts/blob/main/SKILLS/StreamOfConsciousness-SKILL.md
1•spamfilter247•14m ago•0 comments

Neumann: I built a unified database including a Semantic Cache and AI Vault

https://github.com/Shadylukin/Neumann
1•Shadylukin•22m ago•1 comments

Hello, here is the marketplace for Moltbot (Clawdbot)

https://molt-market.com/
1•yichen-gong•24m ago•1 comments

St. Peter police chief got federal agents to release resident, sources say

https://www.mprnews.org/story/2026/01/30/st-peter-police-chief-intervenes-prevents-federal-agents...
1•starkparker•29m ago•0 comments

Unable to Stop Al, SAG-AFTRA Mulls a Studio Tax on Digital Performers

https://variety.com/2026/film/news/sag-aftra-ai-tilly-norwood-tax-digital-performers-1236644931/
1•voxadam•30m ago•1 comments

Ouroboros: An AI vibe-coding game

https://github.com/michaelwhitford/ouroboros
1•dulakian•33m ago•1 comments

Cleverbot (2008)

https://www.cleverbot.com/
2•1bpp•40m ago•2 comments

I use a Huawei modem; I cannot access this article. On my Singtel phone, I can

https://twitter.com/MikeFritzell/status/2017784723389759685
4•cwwc•42m ago•0 comments

Workers are 'friction-maxxing' to resist AI

https://www.ft.com/content/fd5e65df-83c7-42f3-9658-377c99df42d1
3•cebert•47m ago•1 comments

Show HN: SBOMHub – Open-source SBoM dashboard with CVE tracking

https://github.com/youichi-uda/sbomhub/blob/main/README_en.md
1•y1uda•48m ago•0 comments

Show HN: Skill.Fish – NPM-style package manager for AI agent skills

https://github.com/knoxgraeme/skillfish
1•knoxgraeme•50m ago•0 comments

Free Corpus Tracker – Budget, stocks, gold, mutual funds in one place

https://icorpus.vercel.app
1•mathan_karthik•52m ago•1 comments

Sudo

https://www.sudo.ws/
1•vinhnx•1h ago•0 comments

Moltbook Smcp Plugin

https://github.com/sanctumos/smcp-moltbook
1•actuallyrizzn•1h ago•1 comments

I replaced a $120/year micro-SaaS in 20 minutes with LLM-generated code

https://blog.pragmaticengineer.com/i-replaced-a-120-year-micro-saas-in-20-minutes-with-llm-genera...
4•vinhnx•1h ago•2 comments

Chased Through Amsterdam, Robbed of $1M, yet Still Building: Matthew's Plans

https://altcoindesk.com/perspectives/interviews/after-a-1m-scam-in-amsterdam-matthew-jones-moves-...
1•CapricornQueen•1h ago•0 comments

The Art of Unix Usability

http://www.catb.org/~esr/writings/taouu/html/index.html
2•js216•1h ago•0 comments

Oakland Firestorm of 1991

https://en.wikipedia.org/wiki/Oakland_firestorm_of_1991
1•petethomas•1h ago•0 comments

What If Trump Discovers That Unpaid UK (and French) Debt from WWI?

https://podcasts.apple.com/us/podcast/ep-155-what-if-trump-discovers-that-unpaid-uk-and/id1528208...
6•KnuthIsGod•1h ago•0 comments

Stop panicking about AI. Start preparing

https://www.economist.com/leaders/2026/01/29/stop-panicking-about-ai-start-preparing
2•petethomas•1h ago•0 comments

Network Applications of Bloom Filters: A Survey [pdf]

https://www.eecs.harvard.edu/~michaelm/postscripts/im2005b.pdf
1•mfiguiere•1h ago•1 comments

Show HN: Kindler: A declarative, Lua-based, build system

https://setsunasoftware.com/kindler/
1•ThatGuyRaion•1h ago•0 comments

The Context Gravity Well

https://mapwriting.substack.com/p/the-context-gravity-well
1•doitLP•1h ago•0 comments

LinkedIn, Everyone's an AI Detective Now

https://www.bloomberg.com/news/articles/2026-01-30/chatgpt-written-linkedin-posts-have-users-anal...
1•petethomas•1h ago•1 comments