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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: Apple Watch 10.6.2 Kernel R+W with Process Dumping

https://github.com/datalocaltmp/peepo
1•datalocaltmp•36s ago•0 comments

Think this open-source Flutter-native AI agent worth building?

https://github.com/anasfik/flutter_copilot
1•gwhyyy•1m ago•1 comments

Cheap USB-to-HDMI adapters are terrible, and yet useful

https://ounapuu.ee/posts/2026/06/22/usb-hdmi-adapter/
1•speckx•2m ago•0 comments

A Game Boy emulator that runs in your terminal (Rust)

https://github.com/dquigles/terminal_gameboy
1•Luvtooty•2m ago•0 comments

Swift Package Index Joins Apple

https://swiftpackageindex.com/blog/swift-package-index-joins-apple
1•JDevlieghere•2m ago•0 comments

PhoneBuddy: Training Open Models for Agentic Phone Use

https://phonebuddyai.github.io/
1•ilreb•3m ago•0 comments

Agents Declaration – Designing an Agents Orchestration Library – Part II

https://ffacu.dev/blog/arm-agent-fleet
1•ffacu•3m ago•0 comments

SharePoint Copilot Apps

https://devblogs.microsoft.com/microsoft365dev/going-beyond-text-in-microsoft-365-copilot-introdu...
1•saikatsg•4m ago•0 comments

Double stacked Indian freight trains

https://old.reddit.com/r/trains/comments/1udldj0/double_stacked_indian_freight_trains/
1•taubek•6m ago•0 comments

99% compressed, 1% on the bill: I audited 1B tokens to find out why

https://nuxs.ai/study
1•josuramos•7m ago•0 comments

Show HN: Grove – fast source insights for coding agents – via Tree-sitter

https://github.com/Entelligentsia/grove
1•bonigv•8m ago•0 comments

Oracle sheds 21,000 roles over the past year

https://www.cnbc.com/2026/06/23/oracle-ai-job-cuts-layoffs-21000.html
2•leopoldj•12m ago•0 comments

FUTO Swipe – A new swipe typing model

https://swipe.futo.tech/
3•futohq•13m ago•0 comments

Don't Trust OpenAI, "This Is Your Final Warning"

https://247wallst.com/investing/2026/06/21/dont-trust-openai-this-is-your-final-warning/
1•T-A•14m ago•0 comments

Hubble: Notepad for Agents

https://www.hubble.md/
1•handfuloflight•16m ago•0 comments

The truth about being a manager

https://sofiakodar.github.io/posts/becomingmanager/
10•adunk•17m ago•1 comments

NYC Wants to End Surveillance Pricing

https://prospect.org/2026/06/23/new-york-city-wants-to-end-surveillance-pricing/
4•h2si•18m ago•0 comments

My Steam Machine Is a 50ft HDMI Cable

https://blog.matthewbrunelle.com/my-steam-machine-is-a-50ft-hdmi-cable/
3•speckx•18m ago•0 comments

Skynet Progress Report

https://blog.dshr.org/2026/03/skynet-progress-report.html
1•jumpkick•20m ago•0 comments

A Man Has Been Drawing a Map of an Imaginary Land Since 1963

https://www.openculture.com/2026/06/this-man-has-been-drawing-a-map-of-an-imaginary-land-since-19...
2•Brajeshwar•20m ago•0 comments

Apache Grails 7.0.12 and 7.1.12

https://github.com/apache/grails-core
1•theanonymousone•21m ago•0 comments

JBang: Unleash the Power of Java

https://github.com/jbangdev/jbang
2•theanonymousone•23m ago•0 comments

New chip could help tiny robots traverse complex environments

https://news.mit.edu/2026/new-chip-could-help-tiny-robots-traverse-complex-environments-0623
2•droidjj•23m ago•0 comments

Ancient Tablets Show Markets Worked 4k Years Before Economists Explained Them

https://thedailyeconomy.org/article/ancient-clay-tablets-show-markets-worked-4000-years-before-ec...
2•NaOH•23m ago•0 comments

Over 1700 Cargill Meatpacking Workers Locked Out After Demanding Bathroom Breaks

https://sentientmedia.org/cargill-meatpacking-workers-locked-out/
2•randycupertino•24m ago•0 comments

Anthropic rolls out Claude Tag, your new agentic AI coworker in Slack

https://www.zdnet.com/article/anthropic-claude-tag-agentic-ai-coworker-slack/
1•thm•24m ago•0 comments

AI-Generated UI Is Inaccessible by Default

https://master.dev/blog/ai-generated-ui-is-inaccessible-by-default/
1•speckx•24m ago•0 comments

Thirsty and power hungry: Australia's datacenter boom

https://www.theguardian.com/technology/2026/jun/22/australia-ai-datacentre-boom-environmental-imp...
2•logickkk1•25m ago•0 comments

Looking Ahead to Postgres 19

https://www.snowflake.com/en/blog/engineering/postgresql-19-features-beta/
2•craigkerstiens•27m ago•0 comments

Charon: A blind, end-to-end-encrypted marketplace for LLM inference

https://github.com/DeepBlueDynamics/charon
1•kordlessagain•27m ago•1 comments