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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/

I Made a Plex Server

https://henry.codes/writing/i-made-a-plex-server/
1•ohjeez•52s ago•0 comments

Show HN: ViaNJ – an app that makes NJ Transit ticketing less painful

1•perryraskin•1m ago•0 comments

Trump administration wants to allow companies to hack foreign cybercriminals

https://www.npr.org/2026/08/15/nx-s1-5930311/trump-companies-hack-foreign-cybercriminals
1•geox•1m ago•0 comments

Glider: Drive all your agent CLIs from one terminal

https://utsv.work/Glider/
1•uds5501•3m ago•1 comments

Being Ambitious and Being a Dad

https://nicholascharriere.com/blog/being-ambitious-and-being-a-dad/
1•nichochar•5m ago•0 comments

Who Tells You Whether the Molecule Your AI Just Designed Is Any Good?

https://huggingface.co/blog/FINAL-Bench/open-discovery-challenge
1•makaimc•6m ago•0 comments

Writing 300k+ lines of code per month is the new normal, I guess

https://nmn.gl/blog/how-i-actually-write-10000-lines
1•namanyayg•7m ago•0 comments

Rogue AI aren't science fiction anymore

https://www.theverge.com/column/980337/rogue-ai-science-fiction-openai
1•sbulaev•7m ago•0 comments

The experience of mathematical beauty and its neural correlates (2014)

https://pubmed.ncbi.nlm.nih.gov/24592230/
1•nvartolomei•9m ago•0 comments

I tested every Al model the same way. Only one task got better

https://www.thetrueengineer.com/p/i-tested-every-ai-model-the-same
1•adletbalzhanov•10m ago•0 comments

OLED Burn-In Hasn't Improved Like We Expected

https://www.rtings.com/tv/learn/oled-burn-in-not-improved-as-expected
1•doublepg23•11m ago•0 comments

Lichen – simplest CMS for the web, based on Forth

https://codeberg.org/stringbone/lichen/src/branch/master#lichen
1•smartmic•13m ago•0 comments

Build Cal.com on WordPress – Steem WP Plugin Generator

https://steem.dev/signin?next=%2Fapp%3Fproject%3D1e06c442-0b20-43df-a5d8-52b208416f47
1•startuphubai•15m ago•0 comments

Oracle's $165B New Mexico Data Center Plan Hits a Gas Pipeline Delay

https://oilprice.com/Latest-Energy-News/World-News/Oracles-165-Billion-Data-Center-Plan-Hits-a-Ga...
2•toomuchtodo•24m ago•0 comments

Nextcloud Native client – independent and community-driven

https://nc-native.obiente.dev/
1•butz•26m ago•1 comments

Terminal Themes Tournament

https://terminal-themes-tournament.vercel.app/
1•marcuskaz•28m ago•0 comments

If your agent commits a crime, who is responsible?

https://www.signalbloom.ai/posts/if-your-agent-commits-a-crime-who-is-responsible/
4•GodelNumbering•28m ago•3 comments

Traffic that talks. Visitors that stay anonymous. open source

https://github.com/OpenLabs-so/openanalytics
1•rahulbridge•28m ago•0 comments

Show HN: SwarmSim – Computational simulations of emergent flocking

https://github.com/ninjahawk/swarmsimj
2•ninjahawk1•29m ago•0 comments

This duck has more rizz than you

https://www.youtube.com/watch?v=1LH7sEMCOps
1•ajsioeksncnrifh•31m ago•0 comments

Show HN: A punch clock to help with hourly household workers

https://www.punchy.live/
2•magnetic•36m ago•1 comments

BirdFrame – The birds from your backyard on your Samsung frame

https://github.com/simenf/birdframe
1•simenf•37m ago•0 comments

Show HN: Unixy LLM Client using Git to store converastions, instead SQLite

https://github.com/sib-project/sib
2•hskimse•39m ago•0 comments

Wildfire smoke now bigger prenatal threat than human sources of air pollution

https://insideclimatenews.org/republish/?article=wildfire-smoke-pollution-prenatal-threat
1•lentoutcry•40m ago•1 comments

Microbial DNA under Antarctica offers clues about how Blood Falls came to be

https://www.livescience.com/planet-earth/antarctica/scientists-uncover-big-clue-as-to-how-antarct...
1•gmays•40m ago•0 comments

The Electrocardiogram at 100 Years: History and Future

https://www.ahajournals.org/doi/10.1161/CIRCULATIONAHA.123.065489
1•teleforce•42m ago•0 comments

Europe Cannot Govern AI by Cloud Region Alone: A Architecture for AI Sovereignty

https://zenodo.org/records/21967218
2•sangamdas1982•42m ago•0 comments

Sharing localhost without publishing it: how h5i's P2P sharing works

https://medium.com/@Koukyosyumei/sharing-localhost-without-publishing-it-how-h5is-p2p-sharing-wor...
1•syumei•43m ago•0 comments

The Internet Should Be More Like a Liquor Store

https://loginwithone.com/blog/the-internet-should-be-more-like-a-liquor-store/
2•mikeysight•43m ago•3 comments

The weekend is 100 years old

https://www.theguardian.com/money/2026/aug/16/the-weekend-is-100-years-old-skiveday-fridays-and-h...
19•lentil_soup•44m ago•1 comments