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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/

Lotus Improv on the NeXT

https://stonetools.ghost.io/lotusimprov-next/
2•ChristopherDrum•1m ago•0 comments

Orion2 Redone: A Master of Orion II Restoration Project

https://github.com/orion2re/orion2re
1•joecarpenter•1m ago•1 comments

Do dentists know what they're doing?

https://mapwriting.substack.com/p/dentists
1•doitLP•3m ago•0 comments

Show HN: If MIT OCW Was Like Cable TV

https://rahulch.site/mitocwtv/
1•iKidA•3m ago•0 comments

Nvidia, Microsoft Launch Windows PCs with RTX Spark and AI Agents

https://blogs.nvidia.com/blog/local-ai-rtx-spark-microsoft-windows-event/
1•gmays•4m ago•0 comments

Claude-Pod

https://github.com/trekhleb/claude-pod
1•trekhleb•5m ago•0 comments

What are your thoughts on this technology that the American government has?

2•whiteangel1984•7m ago•0 comments

A local AI recording summarizer developed by Google

https://developers.google.com/edge/foresight
2•haebom•9m ago•0 comments

Sightline – In-browser verification for CV dataset labels (No cloud uploads)

https://ais-pre-uqacxswl4dlj3azrt3kfxb-932959859977.europe-west2.run.app
1•joshuageoschool•9m ago•0 comments

One Minute Park

https://oneminutepark.tv/?minute=16:04&view=map&map=1.00/0.0000/-55.0175
2•cookingoils•11m ago•0 comments

Show HN: Homebutler – my server report printed 7 lines for 2 changes, now 2

https://github.com/Higangssh/homebutler
1•swq115•12m ago•0 comments

AI coding agents generate more code, but not more software

https://arstechnica.com/ai/2026/10/ai-coding-agents-generate-more-code-but-not-more-software/
3•jonbaer•14m ago•0 comments

Ledger wallet tampering suspected after reports of crypto thefts

https://www.theverge.com/tech/1009294/ledger-wallet-tampering-suspected-after-reports-of-crypto-t...
1•sbulaev•17m ago•1 comments

Free YouTube Transcript Generator

https://videotranscriber.ai/youtube-transcript-generator
4•Lemarie•22m ago•0 comments

Show HN: Foretype: type on remote machines at local speed

https://github.com/itsfabioroma/foretype
2•ofabioroma•25m ago•0 comments

Agentic journal of higher categorical semantics

https://higher-categorical-semantics.pages.dev/announcements/call-for-papers
2•measurablefunc•27m ago•0 comments

An open-source, clean-room reimplementation of Microsoft Word in pure Rust

https://github.com/storytold/wordcraft
3•espeed•27m ago•0 comments

Linus Torvalds Working on a Hefty Linux Kernel Improvement with Claude Code

https://www.phoronix.com/news/Linus-Torvalds-Claude-Code
8•mdp2021•27m ago•0 comments

American Academy of Pediatrics renews call for ban on raw milk

https://www.cspi.org/cspi-news/american-academy-pediatrics-renews-call-ban-raw-milk
3•geox•35m ago•0 comments

Eye Cells May Have Been Rejuvenated for the First Time in People

https://time.com/article/2026/10/08/eye-cells-rejuvenated-for-the-first-time-in-people/
5•pseudolus•37m ago•0 comments

Iran's threat to cut undersea cables in Strait of Hormuz poses a threat to Gulf

https://theconversation.com/irans-threat-to-cut-undersea-cables-in-strait-of-hormuz-poses-a-serio...
6•snarky-comments•39m ago•0 comments

Show HN: SwapBackdrop – reuse one cutout across video backgrounds and frames

https://swapbackdrop.com/
3•robot1996•53m ago•0 comments

USGS Tsunami Warning System

https://www.tsunami.gov/
4•hmnxrne•57m ago•0 comments

Why is bun so disliked?

https://www.reddit.com/r/webdev/comments/1wx1y2u/why_is_bun_so_disliked/
2•lr0•58m ago•0 comments

Codesmith's flagship open source project compromised, thousands at risk

https://www.deepwoodssec.com/research/reactime
5•michaelnovati•58m ago•0 comments

Elon Musk's PAC is spreading inaccurate voting info, election officials say

https://www.cnn.com/2026/10/10/politics/elon-musk-pac-inaccurate-voting-information
14•MilnerRoute•59m ago•0 comments

Thoughts on the Current State (Especially Quality Issues) and Future of Bun

https://github.com/oven-sh/bun/issues/27664
2•lr0•59m ago•0 comments

Wildfire xPrize Winners

https://robotsandstartups.substack.com/p/wildfire-xprize-winners-women-in
5•robotlaunch•1h ago•1 comments

Ask HN: Curious, who can afford to buy in SF?

4•rubicon33•1h ago•2 comments

Show HN: I made an agent can self-improving while working

https://yehuitang0316.github.io/gear-site/
5•yt1998•1h ago•2 comments