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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/

Nick Reiner seeks trust fund left by parents to pay for defense in their killing

https://www.nbcnews.com/news/us-news/nick-reiner-seeks-access-trust-parents-left-pay-defense-kill...
2•Michelangelo11•4m ago•0 comments

Looking for volunteers to help with my AI-generated website

1•petebay•4m ago•0 comments

Mercedes‑Benz starts large‑scale production of electric axial flux motor

https://media.mercedes-benz.com/en/article/bebac2af-acdc-465a-9538-adb0bf3d8ccf
2•raffael_de•7m ago•0 comments

GitLab Orbit

https://about.gitlab.com/blog/introducing-gitlab-orbit/
1•berlianta•7m ago•0 comments

Show HN: Eatmydata.ai – Local-First Question-to-SQL-to-Dashboard AI

https://eatmydata.ai/
1•dennis16384•8m ago•0 comments

An open letter to office suite users, just before the Euro-Office announcement

https://blog.documentfoundation.org/blog/2026/06/08/an-open-letter/
1•r366y6•8m ago•0 comments

Show HN: Practicing foreign language generating conversation on topic [video]

https://www.youtube.com/watch?v=6oFjLfrbegg
1•julienreszka•13m ago•0 comments

We gave our agent the exact metric definition. It still wrote the wrong SQL

https://clarilayer.com/blog/what-anthropic-and-openai-didnt-say-about-context-for-data-agents
1•kylehui818•15m ago•1 comments

Vibe Coding is the new Internet Dating

https://joecmarshall.com/posts/vibecoding-is-the-new-internet-dating/
1•CoreSet•18m ago•0 comments

Twelve Factor App Method (2011)

https://12factor.net/
1•zuzuen_1•18m ago•0 comments

Recovoly – AI-powered ink bleed removal for scanned documents

https://recovoly.com
1•thisarajay•18m ago•0 comments

Overtone

https://github.com/overtone/overtone
1•tosh•22m ago•0 comments

How HN: Launchmap – from idea to first paying customer

https://launchmap.madethis.app
1•lucawalthert•25m ago•1 comments

I rebuilt the same SaaS plumbing four times. So I built the thing I wish existed

https://www.indiehackers.com/post/i-rebuilt-the-same-saas-plumbing-four-times-so-i-built-the-thin...
2•DharmendraJago•29m ago•0 comments

Finitemax

https://www.instagram.com/finitemax
1•Faizaan_vx•29m ago•0 comments

Fable 5 is available in Zed

https://github.com/zed-industries/zed/pull/58957
1•flaburgan•31m ago•2 comments

Claude Fable 5 Ultracode + AI medical diagnosis

https://github.com/joelparkerhenderson/ai-medical-diagnosis-examples/blob/main/doctor-perspective...
1•jph•32m ago•0 comments

Moon Mnf: magic wands,idiots, first principal

https://www.lmcpress.com/
1•AITripleAce•33m ago•0 comments

Rejected Emoji Proposals

https://charlottebuff.com/unicode/misc/rejected-emoji-proposals/
1•cheeaun•38m ago•0 comments

Firefox for Android: Play Integrity Check Challenges Custom ROM Users

https://serverhost.com/blog/firefox-for-android-play-integrity-check-challenges-custom-rom-users/
3•shaunpud•40m ago•0 comments

Australian SaaS Platforms Can Verify Business Users with ABN Data

https://fastbusinessapi.com/article/how-australian-saas-platforms-can-verify-business-users-with-...
2•ApiFB-Dev•41m ago•0 comments

Principles for Agent-Native CLIs

https://trevinsays.com/p/10-principles-for-agent-native-clis
1•saikatsg•43m ago•0 comments

From the Transistor to the Web Browser

https://github.com/geohot/fromthetransistor
2•pythops•45m ago•0 comments

David Sinclair plans to test whole-body rejuvenation drugs in the xPrize compet

https://www.technologyreview.com/2026/06/09/1138545/david-sinclair-plans-to-test-whole-body-rejuv...
1•joozio•49m ago•0 comments

Compute-to-Surplus: Why AI Progress Doesn't Matter Until It Changes Economics

https://signal-memo.com/memo-the-compute-to-surplus-pipeline-is-a-product-spec-heres-how-to-ship-...
1•alex-ivan•50m ago•0 comments

Show HN: What Sound Looks Like [video]

https://www.youtube.com/watch?v=XvkDwInPYJw
1•FionaZhu•51m ago•0 comments

Lawyers Barred for A.I.-Generated Citations to Fake Cases

https://www.nytimes.com/2026/06/09/us/ai-lawyers-sanctioned-mississippi.html
2•iancmceachern•54m ago•1 comments

Don't Be Stupid: Grasp Solid

https://www.npopov.com/2011/12/27/Dont-be-STUPID-GRASP-SOLID.html
1•prakashqwerty•54m ago•0 comments

Show HN: Leash, a low-dopamine mobile browser replacement

https://leash.ax
3•hemmert•54m ago•4 comments

CIA officer arrested with gold bars accused of making up top secret program

https://www.nbcnews.com/politics/national-security/cia-officer-arrested-gold-bars-accused-making-...
4•u1hcw9nx•1h ago•0 comments