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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/

EU Parliament blocks AI tools over cyber, privacy fears

https://www.politico.eu/article/eu-parliament-blocks-ai-features-over-cyber-privacy-fears/
1•robtherobber•2m ago•0 comments

Fast Earth-to-Mars Travel: The Antimatter Harvesting Solution

https://github.com/julienreszka/julienreszka/blob/main/notes/Achieve-fast-Earth-to-Mars-travel.md
1•julienreszka•2m ago•0 comments

Show HN: Electronic Music Genre Set Theory

https://tjf.lol/genre/
1•thomasfuller•2m ago•0 comments

Proton and NordVPN blocked in Spain during soccer matches

https://bandaancha.eu/articulos/laliga-telefonica-escalan-bloqueos-11668
1•EbNar•3m ago•1 comments

Show HN: I built an AI trainer and calorie scanner

https://fitversehub.com/download
1•mihaibundea•4m ago•0 comments

Denonomicon: The Dark Arts of Deno Foreign Function Interface Programming

https://denonomicon.deno.dev/introduction
1•enz•5m ago•0 comments

Is Dark Energy Evolving?

https://www.universetoday.com/articles/is-dark-energy-actually-evolving
1•rbanffy•9m ago•0 comments

UK PM: "No platform gets a free pass"

https://www.gov.uk/government/news/pm-no-platform-gets-a-free-pass-government-takes-action-to-kee...
1•kaelyx•13m ago•0 comments

Thinking Machines Lab Will Hire Me. They Just Don't Know It Yet.

https://medium.com/@redjonzaci/thinking-machines-lab-will-hire-me-they-just-dont-know-it-yet-0a59...
1•redjonzaci•17m ago•0 comments

Show HN: ACDC – A non-agentic AI coding tool with L0-L3 context cache tiering

https://github.com/flatmax/AI-Coder-DeCoder
1•flatmax•18m ago•2 comments

Declarative, Inquisitive, then Imperative (2017) [pdf]

https://www.forth.org/svfig/kk/11-2017-Falvo.pdf
1•tosh•18m ago•0 comments

The New Way to Build a Startup (YC Video, YouTube)

https://www.youtube.com/watch?v=rWUWfj_PqmM
1•wuschel•18m ago•0 comments

Agent Skills Hub – Security first directory for AI agent skills and MCP

https://agentskillshub.dev/
1•cana2026•22m ago•0 comments

Show HN: Chrome extension that turns your keyboard into a piano while you type

https://chromewebstore.google.com/detail/qwerty-jam/adaegmlplifnnokcjafmfakheoingnfp
1•anshika_vijay•23m ago•0 comments

Comparing how 3 AI assistants implement memory

https://www.maximem.ai/blog/ai-apps-memory
1•gdad•25m ago•1 comments

Socio – A WebSocket Real-Time Communication (RTC) API Full-Stack Framework

https://github.com/Rolands-Laucis/Socio
1•Rolands_Laucis•26m ago•1 comments

SwiftForth IDE for Windows, Linux, macOS

https://www.forth.com/swiftforth/
1•tosh•26m ago•0 comments

Calculating the shortest path using just CSS

https://css-tip.com/graph-theory/
1•samwho•26m ago•0 comments

Ask HN: How's Business These Days for Upwork Freelancers?

1•burnerToBetOut•27m ago•0 comments

Gitas – A tool for Git account switching

https://github.com/letmutex/gitas
1•letmutex•30m ago•0 comments

DAG PROTOCOL with 3 dimensions, graph to mash

https://github.com/navigatorbuilds/elara-protocol
1•NenadVasic•30m ago•1 comments

AI is slowly munching away my passion

https://whynot.fail/human/ai-is-slowly-munching-away-my-passion/
1•birdculture•32m ago•0 comments

Show HN: I've build a self hosted convex/Firebase/Supabase alternative

https://linkedrecords.com/
1•WolfOliver•34m ago•0 comments

Slopware AI: Ship Garbage Even Faster

https://slopware.ai/
2•hassenaa•37m ago•1 comments

Breach / Stealer-Log / Identity Exposure Services Comparison (With Scoring)

https://github.com/infostealers-stats/Credential-and-breach-monitoring
6•webzio•37m ago•0 comments

For Warmth: Thich Nhat Hanh's Poetic Antidote to Anger

https://www.themarginalian.org/2026/02/16/for-warmth-thich-nhat-hanh/
1•robtherobber•39m ago•0 comments

The Menu, production draft script (2022) [pdf]

https://deadline.com/wp-content/uploads/2023/01/The-Menu-Read-The-Screenplay.pdf
1•nxobject•39m ago•0 comments

UK banks plan Visa and Mastercard alternative amid Trump fears

https://www.theguardian.com/business/2026/feb/16/uk-bank-bosses-plan-visa-mastercard-alternative
7•tosh•40m ago•1 comments

KDE Plasma 6.6 Released

https://kde.org/announcements/plasma/6/6.6.0/
7•mkurz•41m ago•0 comments

A Comparative Security Analysis of Three Cloud-Based Password Managers

https://eprint.iacr.org/2026/058
1•u1hcw9nx•42m ago•1 comments