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Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•8mo ago

Comments

trane_project•8mo 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/

En Kort Refleksion over ADHD

1•Aksel-Louis•48s ago•1 comments

Branch Forge Story OS – A filesystem-based, non-linear story builder

https://chatgpt.com/g/g-69649acdf95881918590d9e7a6fe5607-branch-forge-story-os
1•PEACEBINFLOW•2m ago•0 comments

Could You Survive the Black Death, the Sack of Rome and Other Catastrophes?

https://www.smithsonianmag.com/history/could-you-survive-the-black-death-the-sack-of-rome-and-oth...
1•NewCzech•2m ago•0 comments

Devuan – Debian Without Systemd

https://www.devuan.org/
1•smartmic•3m ago•0 comments

German Police Union using AI generated image of officer hurt by hooligans

https://www.gdp.de/sachsen/de/stories/2026/01/gewalt-im-fussballspiel-magdeburg-gegen-dresden
2•jh54•10m ago•0 comments

Amazon's latest pivot: Bye-bye, automated grocery stores

https://www.businessinsider.com/amazon-fresh-stores-closing-focusing-on-whole-foods-delivery-2026-1
1•doener•11m ago•0 comments

Ask HN: Do you use a visual debugging AI tool?

2•tornikeo•12m ago•0 comments

Field Manual: Minimal Federated Trust-Bound Social Infrastructure

https://collectivesafetynet.blogspot.com/2026/01/field-manual-minimal-federated-trust.html
1•trustmarket•14m ago•1 comments

Moltbot but for Commerce

1•domsteil•15m ago•0 comments

Did a 1919 Comic Predict Cell Phones?

https://www.snopes.com/fact-check/the-pocket-telephone/
2•ZeljkoS•17m ago•0 comments

Ubiquiti: The U.S. Tech Enabling Russia's Drone War

https://hntrbrk.com/ubiquiti/
3•krzyk•20m ago•0 comments

Succession: Linux kernel community gets continuity plan for post-Linus era

https://www.theregister.com/2026/01/27/linux_continuity_plan/
2•pjmlp•27m ago•0 comments

I Stopped Following the News

https://mertbulan.com/2026/01/28/why-i-stopped-following-the-news/
2•mertbio•27m ago•0 comments

PromptForest: Fast Ensemble Detection of Malicious Prompts for LLMs

https://github.com/appleroll-research/promptforest
1•appleroll•28m ago•1 comments

Virtual Boy on TV with Intelligent Systems Video Boy

https://hcs64.com/video-boy-vue/
1•hcs•28m ago•0 comments

Online Hearing Test

https://realtimesoundmeter.org/online-hearing-test/
1•bitvvip•28m ago•0 comments

I felt a duty to watch. Now blood-soaked streets fill my dreams

https://www.smh.com.au/world/middle-east/a-force-for-truth-and-hope-has-turned-into-my-doomscroll...
2•femto•31m ago•0 comments

Exploring Different Keyboard Sensing Technologies

https://www.lttlabs.com/articles/2026/01/27/exploring-different-keyboard-sensing-technologies
3•viraptor•39m ago•0 comments

Building Products as a Designer

https://twitter.com/borakaizen/status/2016254999890681866
2•kaizenb•41m ago•0 comments

Goodbye Java, Hello Go

https://wso2.com/library/blogs/goodbye-java-hello-go
4•thunderbong•42m ago•0 comments

UK joins European offshore windfarm plan

https://www.theguardian.com/environment/2026/jan/26/uk-among-10-countries-to-build-100gw-wind-pow...
4•zeristor•43m ago•1 comments

The Rise of Sanityware

https://thatshubham.com/blog/2026
3•todsacerdoti•43m ago•0 comments

Show HN: Kaboink Humanize and Stay on Brand

https://kabo.ink/
1•jamescampbell•43m ago•1 comments

Show HN: Heroshot – Automate documentation screenshots with a visual picker

https://heroshot.sh/
1•machala•45m ago•0 comments

The Silicon Gaze: A typology of biases and inequality in LLMs

https://inequalities.ai/
1•the-mitr•45m ago•0 comments

Commodore 64 Helps Revive the BBS Days

https://hackaday.com/2026/01/25/commodore-64-helps-revive-the-bbs-days/
2•rbanffy•49m ago•0 comments

Surely [the crash of the US economy] has to be soon

https://wilsoniumite.com/2026/01/27/surely-it-has-to-be-soon/
12•Wilsoniumite•50m ago•4 comments

The end of the curl bug-bounty

https://daniel.haxx.se/blog/2026/01/26/the-end-of-the-curl-bug-bounty/
1•pabs3•50m ago•0 comments

Mechanical Computing [pdf]

https://raney.seas.upenn.edu/wp-content/uploads/2022/01/Yasuda-2021-Mechanical-computing.pdf
2•nill0•52m ago•0 comments

Negoti-AI-Tion

https://www.tornikeo.com/negoti-ai-tion/
2•tornikeo•54m ago•0 comments