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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/

Why Humanity Might Have to Declare War on AI (By: William Spaniel) [video]

https://www.youtube.com/watch?v=OAU3lAadXLM
1•4diii•1m ago•0 comments

Designing LLM failover as a route change, not a retry loop

https://modelflare-blog.static.hf.space/model-groups-and-failover.html
1•Matthewmodelfla•1m ago•0 comments

Can AI Automate Epoch?

https://epoch.ai/publications/can-ai-automate-epoch
3•gmays•12m ago•0 comments

The most powerful and free local AI note taking app I've ever used

https://github.com/seacen/meetcap
2•seacen•14m ago•1 comments

Show HN: Fan Transition – Generate outfit transition videos from a single photo

https://fantransition.com/
1•humphrey_liu•18m ago•0 comments

Show HN: Stream Reducer – Audio AI Summarization at Scale

https://reducer.xgoose.org/
1•lobstey•19m ago•0 comments

Show HN: PredixLab – my personal system to discover investment opportunities

https://github.com/predixlab/predixlab-infra
1•unliftedq•21m ago•0 comments

Show HN: See diffs of Wikipedia over time

https://memoryhole.app/wiki-timeline
1•flippant•21m ago•0 comments

Show HN: Simulate an engineering blog, or an idea or an incident

https://github.com/smarchone/sim-xp
1•smarch27•28m ago•0 comments

The Paradox at the Heart of AI and Science – Terence Tao [video]

https://www.youtube.com/watch?v=svl_1upFpQo
1•ent101•31m ago•0 comments

I built an LMSR prediction market for a classical music competition

https://www.ratemyfestival.com/competitions/wieniawski-2026/odds
1•onesemble•33m ago•1 comments

What is the ultimate truth? We asked leading AI models

https://ultimatetruth.one
2•regnull•33m ago•1 comments

Using AI as a tutor to do math with pen and paper

https://twitter.com/nichochar/status/2111822781214294329
4•nichochar•34m ago•1 comments

Chums

https://chums.club/
1•soheilpro•34m ago•0 comments

MS Project – I made my own app finally

2•sttock•35m ago•0 comments

Show HN: DogCatTrace – Clapt was distilled from some random dog

https://github.com/xiebaiyuan/DogCatTrace
2•xiebaiyuan•37m ago•0 comments

Jio Platforms IPO

https://finshots.in/archive/a-few-more-things-about-the-jio-platforms-ipo/
1•vismit2000•38m ago•0 comments

Good Interfaces Make Good Neighbors

https://boz.com/articles/good-interfaces-make-good-neighbors
2•swolpers•40m ago•0 comments

ZX Spectrum Next Laptop

https://www.dorchester3d.com/printing/blog/2020/11/zx-spectrum-next-laptop-version-2
1•utopcell•45m ago•0 comments

IMF World Economic Outlook 2026 [pdf]

https://www.imf.org/-/media/files/publications/weo/2026/october/english/text.pdf
4•gmays•46m ago•0 comments

Show HN: Neuron, agents that set themselves up from your GitHub repo

https://www.neuronbot.in
2•tanay_kapoor•49m ago•0 comments

Now you can simply watch an ad to get hacked [video]

https://www.youtube.com/watch?v=oTNqhH4KzxY
2•s_e_n_a_p_a_t_y•51m ago•1 comments

MyChart health data opt-out journey: notaries, calls, visit to Epic

https://www.statnews.com/2026/10/15/health-data-privacy-medical-record-opt-out-barriers-investiga...
1•EA-3167•52m ago•1 comments

The Sphere Packing Project – Post 1 – The Story

https://leanprover-community.github.io/blog/posts/SpherePacking-1/
1•Aleksandr_NFA•52m ago•0 comments

The Annotated VT100 Firmware

https://vt100.net/dec/vt100/rom/
2•Aleksandr_NFA•53m ago•0 comments

Post-mortem of technical issue – August 29, 2019

https://zerodha.com/marketintel/bulletin/229363/post-mortem-of-technical-issue-august-29-2019
1•Aleksandr_NFA•53m ago•0 comments

The Third Risk

https://thirdrisk.org/
3•paulpauper•58m ago•0 comments

The Nick Cammarata Model of Happiness (Reconstructed from His Tweets)

https://federicorcassarino.substack.com/p/the-nick-cammarata-model-of-happiness
1•paulpauper•58m ago•0 comments

The Rise of In-Office Remote Work

https://www.theatlantic.com/ideas/2026/10/in-office-remote-work/688993/
5•Garbage•59m ago•0 comments

I built a streaming platform where audiences decide what gets produced

https://app.quickflicktv.com/
1•actor1989•1h ago•0 comments