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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/

Game Industry Hardship Fund

https://itch.io/b/3802/game-industry-hardship-fund
1•jbm•3m ago•0 comments

ebookfs – a 9P eBook library filesystem

https://github.com/ramblingenzyme/ebookfs
1•ramblingenzyme•6m ago•1 comments

ao486: x86-compatible Verilog core implementing all features of a 486 SX (2014)

https://github.com/alfikpl/ao486
1•csmantle•8m ago•0 comments

Challenge GPT and Claude to Run Their Own Lemonade Stands[video]

https://www.youtube.com/watch?v=6Ide5pRLR8Y
1•blackcat201•10m ago•0 comments

Strangers pretrained a language model with HF PRs and a cron job

1•somevyn•19m ago•0 comments

'Naked Dressing' Is Spreading and It's Making Things Awkward

https://www.wsj.com/style/fashion/naked-dressing-hailey-bieber-madonna-d2a1d94b
1•petethomas•27m ago•0 comments

Moochacha

https://codeberg.org/markdascher/moochacha
2•sillysaurusx•28m ago•0 comments

J3blocks

https://codeberg.org/amano.kenji/j3blocks
1•sillysaurusx•28m ago•0 comments

Show HN: Nuking the crap Claude left in the codebase – CCN

https://github.com/jonhardwick-spec/ccn
1•jonhardwickspec•30m ago•0 comments

Running Kimi K3 on MI355X at Better Performance per Dollar Than B300

https://www.wafer.ai/blog/kimi-k3-mi355x
7•ilreb•40m ago•0 comments

Booting Fuchsia's Zircon on a Homebrew RISC-V SoC, on an Artix-7 FPGA

https://www.hdlfactory.com/post/2026/07/19/cocoapuffs-booting-fuchsias-zircon-kernel-on-a-risc-v-...
3•mbStavola•42m ago•0 comments

Sick of waiting for agents to run and then having to debug

1•seafaithless•43m ago•1 comments

Ask HN: Collection of Best Pitch Decks?

3•carbonclaw•45m ago•0 comments

PostgreSQL and the Linux OOM Killer: A Better Default

https://clickhouse.com/blog/strict-memory-overcommit-for-postgres
1•saisrirampur•49m ago•0 comments

Don't credit the LLM

https://isaacsu.com/2026/08/dont-credit-the-llm/
7•isaacsu•54m ago•3 comments

Safeguards Based on Copyable Context Cannot Provide Reliable Safety for LLMs

https://arxiv.org/abs/2607.27951
1•sbulaev•55m ago•0 comments

Karpathy's Pelican

https://twitter.com/karpathy/status/2083749667410727319
2•delichon•56m ago•0 comments

Canadians are leaving the country at record levels. Can anyone solve this?

https://thehub.ca/2026/04/03/can-anyone-solve-canadas-brain-drain-problem/
1•TMWNN•56m ago•0 comments

Simple Outlier Detection in a Kalman Filter

https://gurevich.ca/simple-outlier-detection-in-a-kalman-filter/
1•gregsadetsky•1h ago•0 comments

Futurism says Meta has "almost nothing" to show for AI. The numbers say

https://runtimewire.com/article/futurism-says-meta-has-almost-nothing-to-show-for-ai-the-numbers-...
3•ryanmerket•1h ago•6 comments

AI Models as Commodities

https://www.axios.com/2026/08/01/deepseek-model-cheap-ai-price-war
1•kooi•1h ago•1 comments

Play Neuromancer

https://archive.org/details/msdos_Neuromancer_1988
1•mindcrime•1h ago•0 comments

OpenAI's claimed disproof of Connes' Rigidity Conjecture is invalid [pdf]

https://philarchive.org/archive/NIEWTCv17
30•muglug•1h ago•10 comments

Foundational ternary-model inference and training – CUDA, CPU, BitNet/TQ

https://github.com/Quitetall/tritium
1•jacquesm•1h ago•0 comments

Windows XP Original

https://archive.org/details/windows-xp-all-sp-msdn-iso-files-en-de-ru-tr-x86-x64
1•shrikaranhanda•1h ago•1 comments

ModRetro M64 – Nintendo 64 that plays original cartridges with 4K HDMI

https://modretro.com/products/m64
1•dazzatron•1h ago•0 comments

Task Hounds – a local-first, inspectable multi-agent dev workspace

https://github.com/catowabisabi/task-hounds
1•enomars•1h ago•0 comments

OpenV2K: Working FOSS Software Stack for "Voice to Skull" SDR Pulse Modulation

https://github.com/OpenV2K
2•mike564•1h ago•1 comments

Show HN: I get 25 deep researched ideas with one single prompt

https://github.com/ringlochid/banksia
5•ringlochid•1h ago•2 comments

Large language models can predict the results of social science experiments

https://www.nature.com/articles/s41586-026-10742-x
1•Tomte•1h ago•0 comments