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Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•11mo ago

Comments

trane_project•11mo 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/

Scientists have invented a way to erase bad memories. But should we?

https://www.sciencefocus.com/future-technology/erase-painful-memories
2•amichail•6m ago•0 comments

Rust Async and the Arm Generic Timer

https://thejpster.org.uk/blog/blog-2026-05-17/
1•hasheddan•7m ago•0 comments

Dealing with a Fake a World

1•morpheos137•7m ago•0 comments

Design posters showcasing your country's electrical grid

https://github.com/open-energy-transition/grid2poster
1•lyoncy•21m ago•0 comments

100% Vibe Code

https://humansvsai.io
1•creatorcuffee•23m ago•0 comments

Why ML is a metaphor for life

https://adeshpande3.github.io/Why-Machine-Learning-is-a-Metaphor-For-Life
1•_josh_meyer_•25m ago•0 comments

Finding the Time on AArch32

https://thejpster.org.uk/blog/blog-2026-05-16/
1•hasheddan•25m ago•0 comments

Meta AI Incognito Mode Chats

https://about.fb.com/news/2026/05/incognito-chat-whatsapp-meta-ai/
1•hdjY28•25m ago•0 comments

Financial Services Hackathon for Autism

https://fsi-hack4autism.github.io
1•hbcondo714•28m ago•0 comments

I reduced my OpenClaw token usage by 10x

https://brtkwr.com/posts/2026-05-17-reducing-openclaw-token-usage/
1•brtkwr•31m ago•0 comments

I want to talk population panic and understanding demography

https://bsky.app/profile/karenguzzo.bsky.social/post/3lor4lsga4c2c
1•doener•40m ago•0 comments

EPI – forensic evidence containers for AI agentSCITT-compatible, EU AI Act-ready

https://github.com/mohdibrahimaiml/epi-recorder
1•afridi_epilabs•40m ago•0 comments

Dealing with Incomplete Copyleft Source That Doesn't Correspond

https://sfconservancy.org/blog/2026/may/17/incomplete-corresponding-source-code-copyleft-agpl/
2•jacquesm•41m ago•0 comments

ElliQ is a surprisingly helpful companion robot for older adults

https://www.theverge.com/gadgets/928806/elliq-intuition-robotics-hands-on
1•sohkamyung•43m ago•0 comments

Just make your own usage brake for Cloudflare

https://github.com/eap5662/serverless-sentinel
1•es0teric5662•43m ago•1 comments

Court grants Musk's bid to add Craig Federighi to Apple/OpenAI lawsuit

https://9to5mac.com/2026/05/15/court-grants-musks-bid-to-add-craig-federighi-to-apple-openai-laws...
4•hdjY28•44m ago•1 comments

Fabricked: Misconfiguring Infinity Fabric to Break AMD SEV-SNP

https://xca-attacks.github.io/fabricked/
4•negura•45m ago•0 comments

So you want to deploy FN-DSA

https://keymaterial.net/2026/05/13/so-you-want-to-deploy-fn-dsa/
1•contact9879•50m ago•0 comments

Grounding AI shopping agents using personas learned from raw clickstream data

https://arxiv.org/abs/2605.14205
1•memoriesdotzip•51m ago•0 comments

The Law of Leaky Abstractions (2002)

https://www.joelonsoftware.com/2002/11/11/the-law-of-leaky-abstractions/
1•oldmanrahul•53m ago•0 comments

Anthropic's $1.5B Settlement with Publishers

https://abhishek-shankar.com/posts/the-pirated-corpus-was-always-a-balance-sheet-item
1•catstyler•53m ago•0 comments

Prowl: Native macOS codings agent orchestrator

https://tangled.org/onev.cat/Prowl
1•nerdypepper•56m ago•0 comments

LeakyLM: AI Assistants Are Leaking Your Conversations

https://leakylm.github.io/
1•lucasluitjes•57m ago•0 comments

Review: Cultivated Salmon

https://justismills.substack.com/p/review-cultivated-salmon
1•networked•58m ago•0 comments

Shipping my first mobile app with AI

https://blog.foundingengineer.com/p/what-i-learned-building-my-first
2•rpatni•1h ago•0 comments

AI Agents Ran 27,000 Experiments. Their Biggest Discovery

https://medium.com/@vektormemory/660-ai-agents-ran-27-000-experiments-their-biggest-discovery-was...
1•vektormemory•1h ago•2 comments

ThinkPad: From IBM's Bento Box to Lenovo's AI Workstations

https://www.jdhodges.com/blog/thinkpad-history/
8•zdw•1h ago•0 comments

Tokenomics: Is it cost effective to refresh Claude's cache, or let it expire?

https://skids.dev/blog/anthropic-cache-tokenomics/
2•ryanskidmore•1h ago•0 comments

Installing a Payphone at My House

https://bert.org/2022/06/02/payphone/
1•skinfaxi•1h ago•0 comments

AI Wearables Are Coming but They'll Need to Pass the Coffee Shop Test to Survive

https://www.inc.com/connor-jewiss/ai-wearables-are-coming-but-theyll-need-to-pass-this-crucial-co...
9•connorjewiss•1h ago•1 comments