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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/

Carbon-aware electricity pricing, measured daily on 38 grids

https://carbonawarepricing.com/
2•High-Five•3m ago•0 comments

Today markets scores 67, almost confident

https://gmdmarkets.com/markets-today
2•shlomysh•3m ago•0 comments

Show HN: NGPDFs – 50 PDF tools that never upload your files

https://ngpdfs.com
2•amulyakashyap09•8m ago•0 comments

Show HN: Aurict – An open-source Terminal AI

https://github.com/aurict/aurict
1•hamzakhrmn2•14m ago•0 comments

Nvidia will buy Hugging Face for $13B

https://www.economist.com/the-world-in-brief/2026/09/04/8cc011b9-bfb9-48a5-a786-222e9a90c088
1•nrsapt•16m ago•0 comments

Beyond Wukong: an AI generated animated drama series [video]

https://www.youtube.com/watch?v=T2Xzd7KHSis
1•livinglist•19m ago•1 comments

Where Measurement Replaces Meaning

https://medium.com/@gurvinder372/article-4-where-measurement-replaces-meaning-8d595ce54eb0
1•gps372•20m ago•0 comments

How to Secure SSH and Postgres with Warpgate

https://packagemain.tech/p/secure-ssh-and-postgres-with-warpgate
1•der_gopher•20m ago•0 comments

Weathernext 3

https://blog.google/innovation-and-ai/models-and-research/google-deepmind/introducing-weathernext-3/
2•tcumulus•25m ago•1 comments

HubSpots recording links are not authenticated and therefore publicly accessible

https://knowledge.hubspot.com/calling/what-are-the-call-recording-laws
1•5h•26m ago•1 comments

Show HN: Fulcrumaxe – an agent team that merged 1,135 PRs into its own repo

https://fulcrumaxe.dev
1•johnproblems•33m ago•0 comments

Show HN: Snooze Tabs in Plain English

https://chromewebstore.google.com/detail/anysnooze-snooze-tabs-tab/mebjcmajkcccdjbonefhlbkledilfnjj
1•dvrkt•34m ago•0 comments

Asking agents to make money to survive

https://www.lesswrong.com/posts/BtoToxAk3bTvZTtDk/asking-agents-to-make-money-to-survive
1•paraschopra•34m ago•0 comments

X Corp blocks social media startup from using 'Twitter' name

https://www.reuters.com/legal/litigation/x-corp-blocks-social-media-startup-using-twitter-name-20...
3•atwrk•37m ago•0 comments

Why Software Needs a Reliability Control Plane

https://techscoop.substack.com/p/why-software-needs-a-reliability
2•BerislavLopac•37m ago•0 comments

The Dome: A Simple Violation of Determinism in Newtonian Mechanics

https://sites.pitt.edu/~jdnorton/Goodies/Dome/
1•pykello•38m ago•0 comments

Mixbox: Pigment-Based Color Mixing

https://github.com/scrtwpns/mixbox
1•anewhnaccount2•41m ago•0 comments

Wiki Is Not Enough

https://replicated.live/blog/wiki
1•andsoitis•43m ago•0 comments

Fidular is a modular fiddle system designed for cross-cultural fluidity

https://cargocollective.com/lh-hantrakul#fidular
1•bryanrasmussen•44m ago•0 comments

Bank of Canada bank notes: Resources for the blind and partially sighted

https://www.bankofcanada.ca/banknotes/audience-specific-resources/blind-and-partially-sighted/
4•robin_reala•45m ago•0 comments

I love Omarchy but I needed Niri so I made this

https://github.com/al3rez/omarchy-niri
1•al3rez•45m ago•1 comments

Mom Is Working for Moloch

https://blog.exitgroup.us/p/mom-is-working-for-moloch
2•MrBuddyCasino•45m ago•0 comments

How to Attempt CBSE Sample Papers Like Real Board Exam Papers?

1•selfstudys•49m ago•0 comments

Signage Company in Dubai

https://www.ambert.ae/signage-board
1•doshopzone•50m ago•0 comments

Oakland Noticing Club

https://mailchi.mp/5513dde03f85/oakland-noticing-club
2•rdmuser•54m ago•0 comments

Nvidia links gaming PCs into a local AI cluster

https://forgeeks.net/nvidia-rtx-pair-local-ai-cluster/
2•kuuuzya•56m ago•0 comments

Sidekick's continual learning loop (2026) – Shopify

https://shopify.engineering/sidekicks-continual-learning-loop
1•porridgeraisin•57m ago•1 comments

PyCon AU conference happening: videos coming online

https://www.youtube.com/@PyConAU/videos
1•spwa4•59m ago•0 comments

Can We Stop with the Uptime Percentages?

https://blog.jim-nielsen.com/2026/stop-with-the-uptime-percentage/
3•ingve•1h ago•0 comments

Clients are servers; all endpoints are created equal

https://docs.dhttp.net/en/docs/overview
1•Arya_xiaofan•1h ago•1 comments