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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/

Show HN: StackVitals – CI failure triage and DORA metrics, no server

https://github.com/stackvitals/stackvitals
1•kaushik-yadav•2m ago•0 comments

Working at Big Tech Companies Can Be a Trap (2019) [video]

https://www.youtube.com/watch?v=6amgO4dIotk
1•wseqyrku•8m ago•0 comments

Ransome and May Mill Engine

https://modelengineeringwebsite.com/Ransome_&_May_mill_engine.html
1•pillars•21m ago•0 comments

Machining Square Inside Corners: Conquer the Nightmare

https://makeitfrommetal.com/machining-square-inside-corners-the-nightmare/
2•pillars•21m ago•0 comments

Model Aero Engines Free Manufacturable Plans/Blueprints

https://outerzone.co.uk/plans.asp?cat=Engines
3•pillars•23m ago•0 comments

Daphne – Oramics Inspired DAW

https://github.com/stuart78/daphne
1•stuart78•24m ago•0 comments

Computerized clairvoyance: psychics push back against AI-generated readings

https://www.theguardian.com/technology/ng-interactive/2026/oct/29/psychics-push-back-ai-readings
2•stevenalowe•33m ago•1 comments

Octoverse: Commits reach new highs in 2026 as developers build with agents

https://github.blog/news-insights/octoverse/octoverse-commits-pushes-reach-new-highs-in-2026-as-d...
1•ksec•35m ago•1 comments

Meridian: A peer-to-peer browser game world built by an AI agent

https://blakelapierre.substack.com/p/meridian-in-action-play-it-in-your
1•agentofone•40m ago•0 comments

Show HN: Multi-Layer ASCII Art

https://typeart.mitpit.com/
1•MitPitt•54m ago•1 comments

France approves $11B tax based on content delivered to French subscribers

https://www.tomshardware.com/software/social-media/french-lawmakers-approve-usd11-2-billion-inter...
3•jnord•1h ago•1 comments

The AI boom spawns job market for data-center liaisons

https://www.semafor.com/article/10/30/2026/the-ai-boom-spawns-job-market-for-data-center-liaisons
1•giuliomagnifico•1h ago•0 comments

Screen Capture for macOS – Open-source sticky-aware scrolling capture

https://github.com/nasadunadu/screen-capture-macos
1•nasadunadu•1h ago•0 comments

Show HN: LanesMac – A scrolling tiling window manager for macOS

https://lanesmac.com
1•mansi126•1h ago•0 comments

Show HN: What [67] MCP servers do at startup, with the internet cut off

https://mcp.brydge-ai.com
1•DevanshKontey•1h ago•0 comments

Show HN: Create a Dumbphone on Android

https://beeswax.getflourish.org/
3•privacyishuman•1h ago•0 comments

"Vibe coded my parents' TV this afternoon "

https://twitter.com/gathint/status/2111379569030939102
2•obilgic•1h ago•1 comments

Why Sam Altman is against a single superintelligence

https://cheekypint.substack.com/p/why-sam-altman-is-against-a-single
1•gmays•1h ago•0 comments

Astronomers make startling discovery of a possible dwarf planet beyond Pluto

https://www.rnz.co.nz/news/world/2281346/it-s-big-astronomers-make-startling-discovery-of-a-possi...
4•slyall•1h ago•2 comments

Samourai Wallet developer Keonne Rodriguez recounts a 29-day prison transfer

https://www.therage.co/letter-8-notes-from-the-inside/
1•privacyishuman•1h ago•0 comments

If CA matched TX on property taxes, it would raise more than the billionaire tax

https://fortune.com/2026/10/31/california-billionaire-wealth-tax-prop-40-revenue-prop-13-texas-ta...
6•jameslk•1h ago•2 comments

A Second Life Under Constraints

https://zenodo.org/records/23836212
1•shailesh-1403•1h ago•1 comments

The History of Every Video Game Genre

https://www.youtube.com/watch?v=Dbgdi7BzMR0
1•primogen•1h ago•0 comments

Defeating highly encrypted and obfuscated code – tutorial (SRBMiner-MULTI 3.7.3)

https://www.yourdev.net/blog.php?post=unpacking-a-commercial-miner
1•noppers•1h ago•1 comments

Getting Back in the Zone

https://alexcwatt.com/back-in-the-zone/
1•acwatt•1h ago•0 comments

Knowledge Spillovers, Competition, and Individual Careers [pdf]

https://discovery.ucl.ac.uk/id/eprint/10230050/1/manuscript_with_fig_and_tables.pdf
1•rohanm93•1h ago•0 comments

We're Training a Figma-Fluent Editing Model

https://www.figma.com/blog/training-a-figma-fluent-editing-model/
3•gmays•2h ago•0 comments

I replaced macOS say with local neural speech

https://www.lukasrieder.com/blog/i-replaced-macos-say-with-local-neural-speech/
1•ankitg12•2h ago•0 comments

The first life and death of Italian computing (1954 – 1964)

https://zeitgame.net/archives/17619
5•PeterHolzwarth•2h ago•0 comments

Vroot – Instant, daemonless root sandboxes from a single flag

https://github.com/gairxx/vroot/tree/main
2•garrettcadams•2h ago•0 comments