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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/

Claude Dynamic Workflows is Crazy [video]

https://www.youtube.com/watch?v=9pwPY_RlQHk
1•bmahir22•38s ago•0 comments

Lean Inference: Lean Manufacturing Principles Applied to AI

https://neurometric.substack.com/p/lean-inference-workflows-applying
1•robmay•59s ago•0 comments

Launch HN: Hyper (YC P26) – Company brain for AI agents and automations

4•shalinshah•2m ago•0 comments

We Are Living in Pinocchio's World

https://om.co/2026/05/25/we-are-living-in-pinocchios-world/
2•tosh•2m ago•0 comments

Phosphene

https://en.wikipedia.org/wiki/Phosphene
1•soupspaces•5m ago•0 comments

Server-Side WebRTC Noise Reduction with Pion, FFmpeg, and RNN Models

https://www.lodan.me/posts/server-side-webrtc-noise-reduction-pion-ffmpeg-rnn/
1•Sean-Der•5m ago•0 comments

Python 3.15.0 beta 2 is here

https://blog.python.org/2026/06/python-3150-beta-2/
1•lumpa•5m ago•0 comments

Five Levels of Adding AI to Your SaaS App

https://shivekkhurana.com/blog/five-levels/
1•shivekkhurana•10m ago•0 comments

The Florida woman catfishing America's political class

https://www.politico.com/news/2026/06/02/bumble-new-jersey-gamble-catfishing-crowder-00941061
1•_tk_•10m ago•0 comments

Umami: An open-source alternative to Google Analytics, Mixpanel and Amplitude

https://github.com/umami-software/umami
1•ksec•12m ago•0 comments

Free vLLM Course: Inference, Compression, Benchmarks

https://www.deeplearning.ai/courses/fast-and-efficient-llm-inference-with-vllm
2•twelvenmonkeys•14m ago•0 comments

The Bloat

https://milkandcigarettes.com/notes/devlog/the-bloat
1•tarxzvf•17m ago•0 comments

Facing life-threatening miscarriage in Arkansas, calls to governor didn't help

https://www.cnn.com/2026/05/28/health/arkansas-miscarriage-abortion-ban-propublica
4•orwin•18m ago•2 comments

The Relaunch of the Old West and Why I Chose Vanilla PHP

https://blog.alexseifert.com/2026/06/02/the-relaunch-of-the-old-west-and-why-i-chose-vanilla-php/
1•SeenNotHeard•19m ago•0 comments

Batching API Calls

https://www.mostlypython.com/batching-api-calls/
1•speckx•20m ago•0 comments

Show HN: Mashines.dev – Live-migrate microVMs between hosts without restarting

https://mashines.dev/
2•ktaraszk•22m ago•0 comments

Impermeabiliza uses AI to modernize waterproofing in Valencia

https://impermeabiliza.net/
1•ignival•25m ago•0 comments

Microsoft unveils new AI models

https://microsoft.ai/models/
5•helloplanets•26m ago•0 comments

Tesla Cybertruck resale value plunges amid sales slump

https://www.msn.com/en-us/money/companies/tesla-cybertruck-resale-value-plunges-amid-sales-slump/...
5•petethomas•26m ago•2 comments

AI enthusiasts racing against time; AI skeptics are racing against entropy

https://charitydotwtf.substack.com/p/ai-enthusiasts-are-in-a-race-against
1•SLHamlet•28m ago•0 comments

AgentSight: System-wide AI agent tracing and monitoring with eBPF

https://github.com/eunomia-bpf/agentsight
2•tanelpoder•28m ago•0 comments

I believe a whole generation of developers miss how open source used to work

https://twitter.com/mitsuhiko/status/2062181646804152626
4•tosh•29m ago•1 comments

Gooey: A GPU-accelerated UI framework for Zig

https://github.com/duanebester/gooey
3•ksec•29m ago•0 comments

Network State Propaganda

https://capirates.substack.com/p/theyre-telling-you-exactly-what-theyre
3•tjcrowley•30m ago•0 comments

The 15-minute city is a dead end

https://blogs.lse.ac.uk/covid19/2021/05/28/the-15-minute-city-is-a-dead-end-cities-must-be-places...
1•Anon84•32m ago•0 comments

Book of Cron Job [fiction]

https://www.nature.com/articles/d41586-026-01716-0
2•apotheosized•32m ago•0 comments

Show HN: Hive Trust – Ed25519-signed benchmarks for every AI inference primitive

https://thehiveryiq.com/trust/
1•thehivery•33m ago•0 comments

Knowable – Open-Source Personal AI Tutor on macOS

https://knowable.ca/
2•samuelzxu•34m ago•1 comments

See SBA Loans Around You

https://www.loanround.com
1•zarie•35m ago•0 comments

Safe Made Easy Pt.2: Don't Fear the Ref

https://ergeysay.github.io/safe-made-easy-pt2.html
3•ergeysay•35m ago•0 comments