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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/

Cheap code, precious trust: Code modernization at scale

https://commandline.microsoft.com/agentic-software-engineering-large-scale-code-migration-languag...
1•doomroot13•1m ago•0 comments

WILD!!!, Fovea-4B model Outperforms ImaJev-4B

https://huggingface.co/Sivasuthan/fovea-4b
2•hack-ngx•3m ago•0 comments

Argus – Open-Source Agentic Security Platform – MIT

https://argusone.online
6•letsplayhosckey•5m ago•1 comments

Poles and polars in spherical, plane, and projective geometry

https://www.johndcook.com/blog/2026/10/25/poles-and-polars/
1•ibobev•5m ago•0 comments

Computing polar triangles with linear algebra

https://www.johndcook.com/blog/2026/10/24/computing-polar-triangles/
1•ibobev•5m ago•0 comments

Neiman Marcus – The 2026 Fantasy Gifts Star Wars Legacy Experience

https://www.neimanmarcus.com/p/prod293940005
12•stasomatic•6m ago•0 comments

Seiko TV Watch from 1982

https://www.ablogtowatch.com/no-longer-made-seiko-tv-watch-from-1982/
1•adunk•8m ago•0 comments

Write Once, Run Anywhere: Java for Retro Computers?

https://retrogamecoders.com/java-for-retro/
1•ibobev•8m ago•0 comments

A Claude Artefact that turns vanilla chat into a shared desktop

https://github.com/moldandyeast/claude-computer
1•rmrmrm•8m ago•0 comments

Circuitera

https://circuitera.org/
1•yuliniooo•9m ago•0 comments

Partial Operator Precedence (Zig Devlog)

https://ziglang.org/devlog/2026/#2026-10-24
1•dverlaeckt80•9m ago•0 comments

Navigating the Current Job Seeker Landscape (Event in Denver, CO, USA)

https://www.eventbrite.com/e/4-perspectives-navigating-the-current-job-seeker-landscape-tickets-2...
1•mooreds•9m ago•0 comments

A faster way to compute signed 64-bit floor division by constants

https://www.benjoffe.com/fast-floordiv
2•dverlaeckt80•10m ago•0 comments

Show HN: Vesalius, an on-device code graph for Claude Code

https://github.com/haplollc/Vesalius
1•bigman1113•10m ago•0 comments

Why Notes will never let us edit Markdown

https://sixcolors.com/post/2026/10/why-notes-will-never-let-us-edit-markdown/
1•Tomte•11m ago•0 comments

Deepity – A C++/CUDA framework replacing backprop with predictive coding

https://github.com/Deepity-HQ/Deepity
1•jackrose2335•11m ago•0 comments

Show HN: Chrome's WebRTC engine with the browser API, in Python

https://github.com/MarshalX/python-webrtc
1•MarshalX•12m ago•1 comments

Wrap.dev Breached

https://twitter.com/zachlloydtweets/status/2114800787716972873
4•pranshuchittora•13m ago•1 comments

Twins AI moved its production AI voice platform from GCP to Azure

https://www.twinsai.com/blog/google-cloud-to-azure-migration
1•nirajs•15m ago•0 comments

Agent-first repos: codebases built for the coding agent to develop and operate

https://agent-hypervisor.ai/posts/agent-first-repos/
1•peterzat•16m ago•0 comments

Literallyeveryfont: Every font on the internet, free for personal use

https://www.literallyeveryfont.com/
20•apwcow•19m ago•0 comments

Show HN: Pandora M1, a distributed training GPU monitor box

https://blog.christianperone.com/2026/10/pandora-m1-a-training-monitor-box-64-nodes-x-8-gpus-supp...
1•perone•22m ago•0 comments

Show HN: Claude Plays the Piano from Braille

https://github.com/chris-mccoy/gottschalk-tarantelle
2•mccoyc•22m ago•1 comments

Somebody please stop the spam texts

https://notes.npilk.com/stop-the-spam-texts
2•npilk•25m ago•0 comments

A dated, inspectable AI citation checker (no fake rankings)

https://citysignal.date/
1•atybelast•25m ago•0 comments

The Half-Life of an Instruction

https://digitaliziran.si/2026/10/26/the-half-life-of-an-instruction.html
1•gregman1•26m ago•0 comments

Unit tests mark territory more than squash bugs

https://yosefk.com/blog/unit-tests-mark-territory-more-than-squash-bugs.html
1•o_nate•27m ago•2 comments

Why I'm growing my Vancouver AI company in Taiwan and Europe instead of the U.S.

https://bcbusiness.ca/business/tech-science/opinion-vancouver-ai-company-taiwan-europe/
22•ClearwayLaw•29m ago•1 comments

Init – a Rust agent harness that recompiles and hot-swaps its own core mid-task

https://initlabs.si/
2•nagi_builds•30m ago•0 comments

Hacker News Semantic Map

https://atlas.nomic.ai/data/andrewgao22/hacker-news/map
1•Betelbuddy•31m ago•0 comments