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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/

Every RAG-based localization pipeline has the same blind spot

https://lingo.dev/en/engineering/rag-localization-glossary-retrieval
1•maxpr•6m ago•0 comments

The AI-Native Developer – Queue

https://spawn-queue.acm.org/doi/10.1145/3807961
1•rbanffy•7m ago•0 comments

Europe Braces for Record-Breaking Late May Heatwave

https://www.severe-weather.eu/global-weather/heat-dome-europe-heatwave-may-summer-2026-forecast-mk/
1•cromka•16m ago•0 comments

Anthropic's 'Mythos 1' Keeps Appearing Despite Restricted Access Claims

https://firethering.com/claude-mythos-anthropic-claude-code-public-release/
1•steveharing1•16m ago•0 comments

Magnifica Humanitas (Encyclical Letter)

https://www.vatican.va/content/leo-xiv/en/encyclicals/documents/20260515-magnifica-humanitas.html
7•theletterf•17m ago•0 comments

Show HN: An open-source, interactive AI engineering syllabus (1,100 papers)

1•PoppingPixel•17m ago•1 comments

No Linux support on free version of Vivado 2026.1

https://www.amd.com/en/products/software/adaptive-socs-and-fpgas/vivado/vivado-licensing-options....
1•birdculture•19m ago•0 comments

Successful Launch Spurs China Toward Crucial First for Moon Landing

https://www.sciencealert.com/successful-launch-spurs-china-toward-crucial-first-for-moon-landing
2•ColinWright•21m ago•0 comments

Exploring the Therapeutic Benefits of Pranayama: A Systematic Review

https://pmc.ncbi.nlm.nih.gov/articles/PMC7336946/
1•rramadass•25m ago•0 comments

Easy (Horizontal Scrollbar) Fixes for Your Blog CSS

https://aartaka.me/easy-fixes.html
1•severine•28m ago•0 comments

The Unix Timesharing System 1974: Denis M. Ritchie and Ken Thompson

https://dl.acm.org/doi/epdf/10.1145/361011.361061
1•KnuthIsGod•28m ago•0 comments

The placenta goes viral: Retroviruses control gene expression in pregnancy [pdf]

https://pmc.ncbi.nlm.nih.gov/articles/PMC6177113/
1•thunderbong•31m ago•0 comments

What is so special about Emacs? [video]

https://www.youtube.com/watch?v=mJZDmO5yOxE
2•signa11•32m ago•0 comments

AI guardrails stripped from Meta and Google models in minutes

https://www.ft.com/content/5630ed79-a263-41ed-9a1a-321617ae310e
2•uxhacker•34m ago•2 comments

Pope Leo Warns of Risks from A.I. In 42,300-Word Encyclical

https://www.nytimes.com/2026/05/25/world/europe/pope-leo-encyclical.html
2•adrianhon•36m ago•1 comments

Mark Zuckerberg's Right-Hand Man Who's Unleashing AI at Meta

https://www.wsj.com/tech/ai/meta-andrew-bosworth-ai-3df12d4f
1•swolpers•38m ago•0 comments

The Conquest of Hip-Hop – pt. I

https://medium.com/the-hitmagist/the-conquest-of-hip-hop-pt-i-70534b69f4f4
1•bryanrasmussen•39m ago•0 comments

AgentSlice – Make AI coding agents ask before they edit

https://github.com/espenandreass1/agentslice
1•espenand•45m ago•0 comments

IBM Spins Off the First Pure-Play Quantum Chip Foundry

https://futurumgroup.com/insights/2-billion-chips-act-investment-in-quantum-bets-on-ibms-300mm-su...
2•rbanffy•45m ago•0 comments

MCP, MC Me [video]

https://www.youtube.com/undefined
1•AddisonHoff•47m ago•0 comments

Rising seas will swallow New Orleans. People need to start relocating now

https://www.cnn.com/2026/05/25/climate/new-orleans-sea-level-rise-relocation
2•breve•47m ago•1 comments

Zinc – zero-copy shared memory for polyglot stacks

https://mine-27913f41.mintlify.app
1•mohd-aman-k•48m ago•0 comments

Startup Viability Scoring Engine

https://www.tooldocket.com/2026/05/startup-viability-scoring-engine.html
1•stoicstoic•49m ago•0 comments

Show HN: I Built a Debugging Challenge for the AI Coding Age

https://theincidentchallenge.com/
4•stealthy_•50m ago•2 comments

Gemma 4: A new, budget-focused model in Posit AI

https://posit.co/blog/gemma-4-new-budget-focused-model-posit-ai
1•ionychal•51m ago•0 comments

Composer-cve-gate – pre-install gate for Composer, built after Laravel-Lang

https://github.com/sharkyger/composer-cve-gate
1•sharkyger•54m ago•0 comments

Is This Prime

https://isthisprime.com/game/
3•paulmist•55m ago•1 comments

Ask HN: First-time EM, quite lost – what helped you?

1•TheKernelTrick•56m ago•1 comments

Shannon Got AI This Far. Kolmogorov Shows Where It Stops

https://medium.com/@vishalmisra/shannon-got-ai-this-far-kolmogorov-shows-where-it-stops-c81825f89ca0
1•t-3•56m ago•0 comments

My AI agent called my code shit and took an unannounced vacation mid-sprint

https://medium.com/@kukushkinav/my-ai-agent-called-my-code-shit-took-an-unannounced-vacation-mid-...
2•KukushkinAV•1h ago•0 comments