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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/

Tool Search Defers Tools to Save Tokens

https://oldeucryptoboi.com/blog/tool-search-deep-dive/
1•ankitg12•15s ago•0 comments

YM – Pure Yang–Mills results and verification

https://github.com/yang-mills-group/YM
1•bryan0•2m ago•0 comments

It Came from the Token Void

https://blog.coredump.cx/p/it-came-from-the-token-void
1•surprisetalk•3m ago•0 comments

I 3D printed a car from scratch, and it's road legal in California

https://www.reddit.com/r/3Dprinting/s/3CUDuPq6Dq
3•hentrep•8m ago•0 comments

Show HN: Fastsleep.app – Imagine micro-scenarios to get sleepy

https://fastsleep.app/
2•greybox555•9m ago•1 comments

Weird licenses and the new open source

https://dustri.org/b/weird-licenses-and-the-new-open-source.html
3•theanonymousone•13m ago•0 comments

The World's first self determined asset is here

https://tokenmobiles.live/
1•elykcim•14m ago•0 comments

Ant Group's Robbyant open-sources tactile AI model for robot hands

https://technode.com/2026/11/10/ant-groups-robbyant-open-sources-tactile-ai-model-for-robot-hands/
1•yogthos•17m ago•0 comments

Native-American point of view on data centers

https://nativenewsonline.net/opinion/demanding-better-conversations-about-data-centers/
1•mark336•17m ago•0 comments

Tim peters has passed away

https://www.reddit.com/r/Python/s/2Cm5dBcvQw
1•kapilvt•18m ago•1 comments

Popcorn: The Only Grain That Performs

https://bolesblogs.com/2026/08/23/popcorn-the-only-grain-that-performs/
1•CoffeeOnWrite•23m ago•0 comments

Show HN: A trim size and margin calculator for self-published books

https://storiesden.com/trim-size-calculator
2•wilgrobe•30m ago•0 comments

Microsoft Will Retire Free Office 365 A1 Email for Schools

https://www.ghacks.net/2026/11/10/microsoft-will-retire-free-office-365-a1-email-for-schools-movi...
3•geox•31m ago•0 comments

How Voting Is Like a Klein Bottle

https://www.quantamagazine.org/how-voting-is-like-a-klein-bottle-20261026/
2•colinprince•37m ago•1 comments

The Apple Support Community will permanently close on November 20, 2026

https://discussions.apple.com/welcome
18•tech234a•37m ago•5 comments

A Microfactory That Stores Data in DNA

https://www.unige.ch/medias/en/2026/une-micro-usine-pour-stocker-des-donnees-dans-ladn
1•pseudolus•41m ago•0 comments

Tech Consultant Is Sentenced to 16 Years to Life in Cash App Founder's Killing

https://www.nytimes.com/2026/11/10/us/bob-lee-cash-app-murder-sentencing.html
2•pseudolus•42m ago•1 comments

The Unbearable Mediocrity of Microdramas

https://www.theatlantic.com/culture/2026/11/microdramas-festival-vertical-entertainment/689361/
1•petethomas•46m ago•0 comments

Controlling your AI agents from a game handheld

https://blog.codepipes.com/llms/ai-agents-handheld.html
1•kkapelon•52m ago•0 comments

Non-axisymmetric MHD equilibria with an arbitrary number of field periods

https://arxiv.org/abs/2611.07672
2•simonpure•53m ago•0 comments

Show HN: Crayon, the web's first personalized newspaper (1995), relaunched

https://crayon.net/relaunch
2•mayyah42•55m ago•0 comments

IBM ending visa and green cards in consulting division

https://www.reuters.com/technology/ibm-end-visa-green-card-sponsorship-most-roles-its-consulting-...
4•rooftopzen•55m ago•2 comments

Show HN: Caramel: a speech-to-speech conversation model trained only on audio

https://naklecha.com/research/caramel-1
3•naklecha•58m ago•0 comments

To deter bioterrorism, U.S. imposes new rules on ordering synthetic DNA

https://www.science.org/content/article/deter-bioterrorism-u-s-imposes-new-rules-ordering-synthet...
12•Metacelsus•1h ago•3 comments

Memory Safety Bugs in Rust Standard Library

https://forge-blog.github.io/posts/rust-std-memory-safety/
2•maxloh•1h ago•0 comments

Leica Cyclone REGISTER 360 2026.1.1 download

1•asksoft•1h ago•0 comments

Stomachion Puzzle – Play Online

https://puzzlewhere.com/solve/stomachion
3•bkevitt•1h ago•0 comments

Show HN: Daily GPU Rental Prices Across AWS, Azure, RunPod and Vast.ai

https://taipeiledger.com/gpu/
4•khoonie•1h ago•1 comments

How the Wildlife Black Market Works [video]

https://www.youtube.com/watch?v=6_oMb90boiU
1•gmays•1h ago•0 comments

Matching product records with a decision model

https://codecut.ai/typesafe-jev-vs-rapidfuzz-sentence-transformers/
1•khuyentran1401•1h ago•0 comments