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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/

EU Commission Response to 'Stop Destroying Videogames'

https://ec.europa.eu/commission/presscorner/home/en
1•TechTechTech•10s ago•0 comments

With Isaac Gr00T, Nvidia may become the Android of robotics

https://www.inc.com/connor-jewiss/how-nvidias-new-humanoid-machine-solves-the-robot-industrys-big...
1•connorjewiss•52s ago•0 comments

The night my marriage fell apart

https://www.theatlantic.com/family/2026/05/divorce-soccer-infidelity-chris-jones/687232/
1•andrewstuart•1m ago•0 comments

Leak Exposes Members of Peter Thiel's Secretive 'Dialog' Society

https://www.wired.com/story/leak-exposes-members-of-peter-thiels-secretive-dialog-society/
1•frb•3m ago•0 comments

Show HN: Audit your installed GitHub CLI extensions

https://sjh9714.github.io/gh-extension-atlas/audit.html
1•sjh9714•4m ago•0 comments

Flexitarian 2048

https://www.nsbradford.com/flexitarian2048
1•zx321•6m ago•0 comments

Bayer's PRINCE: a production agentic RAG system

https://martinfowler.com/articles/reliable-llm-bayer.html
1•logickkk1•6m ago•0 comments

Rust async task local variables from scratch

https://wolfgirl.dev/blog/2026-06-16-async-task-locals-from-scratch/
1•fanf2•7m ago•0 comments

Anger at the Trillionaire – is it Justified?

https://maximepeabody.substack.com/p/anger-at-the-trillionaire-is-it-justified
1•peab•7m ago•0 comments

Touch to Pixels: UI Pipeline Internals on iOS

https://blog.jacobstechtavern.com/p/ui-pipeline-internals
2•jakey_bakey•9m ago•0 comments

Android 17 Is Here

https://android-developers.googleblog.com/2026/06/Android-17.html
2•onnnon•10m ago•0 comments

New Domain for Sign in with Apple and iCloud+ Hide My Email

https://developer.apple.com/news/?id=sus6t6ab
1•embedding-shape•10m ago•0 comments

Show HN: Pacwich – lightweight new monorepo tooling on top of Bun, NPM, or pnpm

https://pacwich.dev/
1•smorsic•11m ago•0 comments

Ask HN: Why does Spotlight indexing get stuck in loops but Time Machine doesn't?

1•amichail•13m ago•0 comments

GrapheneOS has been ported to Android 17 and official releases are coming soon

https://discuss.grapheneos.org/d/36469-grapheneos-has-been-ported-to-android-17-and-official-rele...
3•Cider9986•15m ago•0 comments

Algebraic Music Composition

https://monictheory.com/about
1•midi_finder•15m ago•0 comments

Mistral Repeats State-Sponsored Disinformation Half the Time When Prompted

https://www.newsguardtech.com/special-reports/mistral-le-chat-ai-chatbot-repeats-falsehoods-half-...
1•doener•16m ago•0 comments

SAMF- Deterministic Moscow guardrails for LLM multi-agent loops

https://github.com/NanoPrompt/samf-framework
1•nanoprompter•17m ago•0 comments

MetaLens – open-source image metadata inspector with a free REST API

https://imagemetadataextractor.com/
1•vexelior•18m ago•0 comments

Sustained maneuver has a propulsion problem – SpaceNews

https://spacenews.com/sustained-maneuver-has-a-propulsion-problem/
1•rbanffy•18m ago•0 comments

Show HN: My Mac shoos me away every time I bite my nails

https://github.com/jkkronk/shoo
1•jkkronk•20m ago•0 comments

SPECS, $2195 Smart Glasses by Snap

https://www.specs.com/smart-glasses/specs-27
1•rock_artist•20m ago•0 comments

Why does a museum want to cancel its own Charles Dickens exhibition?

https://www.spiked-online.com/2026/06/01/why-does-a-museum-want-to-cancel-its-own-charles-dickens...
4•bryanrasmussen•20m ago•1 comments

The Scope of CSS Function

https://master.dev/blog/the-scope-of-css-function/
2•ibobev•21m ago•0 comments

Partial Fraction Decomposition

https://www.johndcook.com/blog/2026/06/16/partial-fraction-decomposition/
2•ibobev•22m ago•0 comments

Beware of Star Trek managers, especially when bearing MBAs

https://nibblestew.blogspot.com/2026/06/beware-of-star-trek-managers-especially.html
1•ibobev•22m ago•0 comments

Research finds MV3 does not affect ad-blocking or anti-tracking effectiveness

https://github.com/lukic-papadopoulos-research/impact_of_google_mv3_update_on_ad_blocker_effectiv...
3•maxloh•24m ago•1 comments

Did AI write this article?

https://www.economist.com/graphic-detail/2026/06/16/did-ai-write-this-article
2•vinni2•25m ago•2 comments

Ask Nvidia: musl drivers now

1•nenadg•27m ago•0 comments

European Commission rejects new laws for Stop Destroying Videogames

https://www.gamingonlinux.com/2026/06/european-commission-rejects-new-laws-for-stop-destroying-vi...
2•pier25•30m ago•1 comments