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Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•10mo ago

Comments

trane_project•10mo 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: Hailuo 3.0 AI – AI Video Generator

https://hailuo30.net
1•danielmateo773•2m ago•0 comments

US Bill Mandates On-Device Age Verification

https://reclaimthenet.org/us-bill-mandates-on-device-age-verification
1•ronsor•5m ago•0 comments

Software Bonkers

https://craigmod.com/essays/software_bonkers/
1•mooreds•5m ago•0 comments

How AI changed your daily work at office?

1•XDataY•6m ago•0 comments

Opus 4.7 is horrible at writing

1•limalabs•8m ago•0 comments

Component "archive.ubuntu.com" and a few other components are Down

https://status.canonical.com/
1•SoftTalker•9m ago•1 comments

The first signed, drift-monitored W3C WebMCP manifest

https://getspeakable.ai/blog/webmcp-launch/
1•quickersilver•9m ago•0 comments

Has anyone used Claude Opus 4.7 API on Qubrid or another platform? Use case?

https://platform.qubrid.com/
1•tech_curator•15m ago•0 comments

Show HN: A collection of GPT-IMAGE-2 prompts from X(Twitter)

https://gptimage2.one/awesome-gpt-image-2-prompts
1•kevinhacker•19m ago•0 comments

IPC medley: message-queue peeking, io_uring, and bus1

https://lwn.net/Articles/1065490/
1•signa11•20m ago•0 comments

Robot golf vs. holes that keep getting harder [video]

https://www.youtube.com/watch?v=2OfjZ3ORJfc
1•Timothee•21m ago•0 comments

Parcae: Doing more with fewer parameters using stable looped models

https://www.together.ai/blog/parcae
1•gmays•31m ago•0 comments

Component "security.ubuntu.com" and a few other components are Down

https://status.canonical.com/#/incident/KNms6QK9ewuzz-7xUsPsNylV20jEt5kyKsd8A-3ptQFa8k37yMVCakd1y...
1•zinekeller•32m ago•0 comments

Named Entity Recognition (NER) in Python with Spacy

https://www.analyticsvidhya.com/blog/2021/06/nlp-application-named-entity-recognition-ner-in-pyth...
1•downboots•34m ago•1 comments

AWS Security Agent on-demand penetration testing is now generally available

https://aws.amazon.com/about-aws/whats-new/2026/03/aws-security-agent-ondemand-penetration/
1•computersuck•40m ago•0 comments

RV32I Reference [pdf]

https://hoult.org/rv32i.pdf
1•brucehoult•41m ago•1 comments

I built 7 AI agents that attack the same task in parallel – armyai.app

https://armyai.app
1•Tilica•45m ago•0 comments

A few tips to get more out of Opus 4.7

https://twitter.com/bcherny/status/2044847848035156457
2•tzury•49m ago•0 comments

Show HN: The Onion Shell

https://the.onionshell.ch
1•ewindisch•50m ago•1 comments

I built an AI that analyzes rental leases before you sign

https://goleazly.com/
3•octadevcba•57m ago•0 comments

Autoresearch on Steroids with Sandboxes

https://www.tensorlake.ai/blog/autoresearch-on-steroids-with-sandboxes
1•cooleel•1h ago•0 comments

Global warming is making the strongest hurricanes stronger

https://yaleclimateconnections.org/2026/04/global-warming-is-making-the-strongest-hurricanes-stro...
5•pier25•1h ago•0 comments

Claude Monitor Track token usage, costs, and tool calls for Claude Code sessions

https://github.com/szaher/claude-monitor
1•szaher•1h ago•0 comments

Suspend vs. Snapshot: Pause a Sandbox or Save It for Reuse?

https://www.tensorlake.ai/blog/suspend-vs-snapshot-pause-a-sandbox-or-save-it-for-reuse
1•cooleel•1h ago•0 comments

A content-aware loudness processor with emergent non-linear behavior

https://github.com/aston89/CALP-Content-Aware-Loudness-Processor
2•Aston89•1h ago•0 comments

Vakra: Reasoning, Tool Use, and Failure Modes of Agents

https://huggingface.co/blog/ibm-research/vakra-benchmark-analysis
2•gmays•1h ago•0 comments

Kitum Cave: A Natural Wonder Hosting a Deadly Disease

https://explorersweb.com/kitum-cave-deadly-disease/
3•thunderbong•1h ago•0 comments

Mammals cannot be cloned infinitely, Japanese mouse study shows

https://www.japantimes.co.jp/news/2026/04/15/japan/science-health/mammals-cannot-be-cloned-infini...
4•libpcap•1h ago•0 comments

Solitaire simulator for finding the best strategy: Current record is 8.590%

https://github.com/dacracot/Klondike3-Simulator
1•PaulHoule•1h ago•0 comments

Google Opens Personal Intelligence AI to All US Users

https://www.heygotrade.com/en/news/google-ai-expansion-challenges-microsoft-apple/
1•demiurges•1h ago•0 comments