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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: VestLens, a MCP App for Wealthsimple Portfolios in Claude/ChatGPT

https://vestlens.com/
1•akshayrakheja•3m ago•0 comments

Prohibitions, Risks, and a New Civilization

https://medium.com/@smoking2man/on-prohibitions-risks-and-a-new-civilization-notes-on-the-boundar...
1•Aldus551•3m ago•0 comments

The Frankenstein Table

https://css-tricks.com/the-frankenstein-table/
1•ulrischa•3m ago•0 comments

Embedded Swift for iOS 6 and ARMv7

https://forums.swift.org/t/embedded-swift-for-ios-6-and-armv7/90355
1•rauhul•5m ago•0 comments

Ejaculation frequency and prostate cancer (2022)

https://www.health.harvard.edu/mens-health/ejaculation_frequency_and_prostate_cancer
2•thunderbong•7m ago•0 comments

Goblin – On Brand Motion Templates

https://www.usegoblin.xyz/
1•Obi-•8m ago•0 comments

How hard is it to check for whitespace?

https://serce.me/posts/2026-10-30-how-hard-is-it-to-check-for-whitespace
1•montroser•8m ago•0 comments

Show HN: Reducing LLM Context Complexity from O(N^2) to O(k)

https://github.com/samamatariq3527/Deferred-Cognitive-Architecture
1•samamatariq•10m ago•0 comments

GPUCost – Cloud GPU Prices Normalized by VRAM and LLM VRAM Sizer

https://gpu-cost-r34p.vercel.app/
1•dragolkr•13m ago•0 comments

Tell HN: SQLite's lower() only lowercases ASCII letters

2•prmph•13m ago•1 comments

UlaCache: Unified Logical Addressing for Sparse LLM Serving

https://arxiv.org/abs/2610.29820
3•wslh•14m ago•0 comments

Show HN: CiteLLM – Verify AI Answers in PDFs

https://citellm.com/
1•f_k•14m ago•0 comments

In 'You Can See Everything,' Elizabeth Holmes Is Still Lying

https://www.statnews.com/2026/10/19/elizabeth-holmes-theranos-whistleblower-tyler-shultz-insider-...
2•arbayi•14m ago•0 comments

MCF: Move queries, not KV caches

https://arxiv.org/abs/2610.34731
1•wslh•15m ago•0 comments

Show HN: Maclet – A native macOS container runtime written from scratch in Rust

https://github.com/sumant1122/maclet
2•paperplaneflyr•15m ago•0 comments

PostgreSQL 19 Running Behind Schedule Due to AI/LLM Burden

https://www.phoronix.com/news/PostgreSQL-19-Late
1•mikece•18m ago•0 comments

Local Inference with LLMs

https://jacquesmattheij.com/local-inference-with-large-language-models/
2•_Microft•18m ago•0 comments

Show HN: Classical Music Concerts API

https://classicalbot.com/api/docs
1•druskacik•19m ago•0 comments

Enlightenment 0.28 Released with Many Improvements

https://www.phoronix.com/news/Enlightenment-0.28
7•mikece•22m ago•1 comments

Agricultural drones make first flights in Estonia as rules start to ease

https://news.err.ee/1610181646/agricultural-drones-make-first-flights-in-estonia-as-rules-start-t...
1•marklit•24m ago•0 comments

Useful Custom-Media Presets

https://blog.master.dev/useful-custom-media-presets/
3•eustoria•24m ago•0 comments

Nonna – TypeScript Dependency injection without the reflection tax

https://nonna.nodeboot.io/
3•santoman•25m ago•0 comments

Inside Anthropic's Design Team

https://designerfund.com/blog/ai-design-anthropic
3•eustoria•26m ago•0 comments

A/SIDE – Private photo sharing and encrypted messages

https://a-side.social/
3•eustoria•28m ago•0 comments

CodeGalaxy – explore any GitHub repo as an interactive 3D galaxy

https://cgxy.vercel.app/?repo=facebook/react
1•circuitghost•31m ago•0 comments

Neuralink's Newest Brain Chip Isn't What You Think [video]

https://www.youtube.com/watch?v=Vna0hkq7U1g
2•aleem•33m ago•0 comments

What is a light-day? The milestone Voyager 1 is closing in on

https://science.nasa.gov/mission/voyager/voyager-1/voyager-1-what-is-a-light-day/
10•geox•34m ago•0 comments

Casio – DBC-60

https://www.digital-watch.com/DWL/1work/1874/liked
2•Bluestein•38m ago•0 comments

Ginza Rabba

https://en.wikipedia.org/wiki/Ginza_Rabba
2•Bluestein•41m ago•0 comments

Guardrails Are Life-Saving Machines (If They Work) [video]

https://www.youtube.com/watch?v=neGgUavFT0w
2•db48x•42m ago•1 comments