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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/

Show HN: OpenHack – OSS security scanner, 40x cheaper, on par with Opus 4.6

https://github.com/openhackai/openhack
1•ananayarora•42s ago•0 comments

NSA using Anthropic's Mythos for cyber attacks

https://www.ft.com/content/d02d91b3-2636-454e-9442-dc7e69f51815
4•jawiggins•10m ago•0 comments

Show HN: FFmpeg WebCLI – Full FFmpeg in Browser, Offline PWA, No Uploads(WASM)

https://github.com/tejaswigowda/ffmpeg-webCLI
4•tejaswigowda•10m ago•0 comments

Google Research: Towards passive heart health monitoring via smartphone camera

https://research.google/blog/towards-passive-heart-health-monitoring-via-smartphone-camera/
4•thinkcomp•16m ago•0 comments

Strategic Implications of Lunar Mass Drivers as a Dual Use Technology [pdf]

https://www.afpc.org/uploads/documents/Special_Report_-_Strategic_Implications_of_Lunar_Mass_Driv...
2•EthanHeilman•17m ago•0 comments

Why Vector Search fails at LLM memory (and a benchmark to prove it)

https://github.com/tenurehq/precisionMemBench
2•decorner•21m ago•0 comments

Only 3% of traders drive prediction markets' accuracy, not the crowd

https://www.coindesk.com/markets/2026/04/26/only-3-of-traders-drive-prediction-markets-accuracy-n...
3•PaulHoule•22m ago•0 comments

Crashing cars and improving hover detection

https://motion.dev/magazine/collision-detection-in-hover-detection
1•azhenley•23m ago•0 comments

Iran Shock Jolts Asia and Europe to Speed Up Energy Transition

https://www.bloomberg.com/graphics/2026-energy-transition-iran-war/
4•toomuchtodo•24m ago•0 comments

Documentary, "C++: The Most Consequential Programming Language"

https://www.youtube.com/watch?v=lI7tMxzSJ7w
4•pjmlp•27m ago•0 comments

ATV Riders Cheer Trump Opening Access to Federal Lands, Critics Expect Disaster

https://cowboystatedaily.com/2026/06/04/atv-riders-cheer-trump-opening-access-to-federal-lands-cr...
3•Bender•28m ago•1 comments

Dashlane explains how attackers managed to download encrypted password vaults

https://arstechnica.com/security/2026/06/dashlane-explains-how-attackers-managed-to-download-encr...
1•Bender•29m ago•0 comments

My SSN was exposed in a breach at Columbia, a school I have no connection with

https://arstechnica.com/tech-policy/2026/06/my-ssn-was-exposed-in-a-breach-at-columbia-a-school-i...
5•Bender•29m ago•1 comments

Anthropic's open-source framework for AI-powered vulnerability discovery

https://github.com/anthropics/defending-code-reference-harness
34•binyu•31m ago•9 comments

SpaceX's Tiered Lockup Aims to Help Post-IPO Trading

https://global.morningstar.com/en-nd/stocks/how-spacexs-tiered-lockup-aims-help-post-ipo-trading
1•tmp10423288442•32m ago•0 comments

How we know if our agent is right

https://www.mendral.com/blog/how-we-know-if-our-agent-is-right
2•shad42•34m ago•0 comments

Show HN: Using Haskell to play music on 3D printer motors (2020)

https://lucasoshiro.github.io/software-en/2020-07-31-music_gcode/
2•lucasoshiro•35m ago•0 comments

Canada's National Artificial Intelligence Strategy: AI for All

https://ised-isde.canada.ca/site/ised/en/canadas-national-artificial-intelligence-strategy-ai-all
2•Teever•36m ago•0 comments

Show HN: Module adding Layer-3 protocols SV and GOOSE to ns-3 network simulator

https://github.com/lucasoshiro/GridGooseSV
1•lucasoshiro•38m ago•0 comments

Supreme Court Backs FCC Power to Levy Fines Against Cellphone Carriers

https://www.nytimes.com/2026/06/04/us/politics/supreme-court-cellphone-carriers-fines.html
3•Cider9986•39m ago•1 comments

Extension or Imitation? Valid Haskell Language Extensions vs. Impostors

https://doscienceto.it/extension-or-imitation/
4•birdculture•39m ago•0 comments

Nafion

https://en.wikipedia.org/wiki/Nafion
1•maxall4•41m ago•0 comments

Europe has sovereign AI policy. It has no sovereign AI

https://www.youtube.com/watch?v=Xk0llAE8GoY
3•frag•42m ago•0 comments

Magic Enum C++: Header-only C++17 library provides static reflection for enums

https://github.com/Neargye/magic_enum
2•gjvc•44m ago•0 comments

Anthropic Urges Global Pause in AI Development, Flags 'Self-Improvement' Risk

https://www.wsj.com/tech/ai/anthropic-urges-global-pause-in-ai-development-flags-self-improvement...
6•joebuckwilliams•45m ago•4 comments

Show HN: Bot or Not – Spot AI-generated randomness

https://play-bot-or-not.vercel.app/
2•EvanZhouDev•46m ago•0 comments

ConjureEnum: lightweight header-only C++20 enum and typename reflection

https://github.com/fix8mt/conjure_enum
2•gjvc•46m ago•0 comments

I turned my resume into a playable retro game

https://weskdavis.github.io/resume-game/
2•wkd415•49m ago•1 comments

Anthropic Urges Global Pause in AI Development, Flags 'Self-Improvement' Risk

7•stefap2•49m ago•5 comments

Castor: CERN Advanced STORage Manager

https://castor.web.cern.ch/content/home.html
16•naves•51m ago•1 comments