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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/

Mid-tier knives: worth the cost?

https://www.paragon-knives.com/
1•bgzlsxaz•56s ago•0 comments

OpenStreetMap running on an ESP32 with TypeScript and Canvas [video]

https://www.youtube.com/watch?v=-ktOCcfCIqA
1•arbayi•1m ago•0 comments

Cory's Cookies and The 92% Tax Rate (2018)

https://wrestlinggnon.com//essay/2018/09/02/corys-cookies-and-the-92p-tax-rate.html
1•surprisetalk•3m ago•0 comments

IBM hails new 'block of flats' design breakthrough for ultra tiny chips

https://www.bbc.co.uk/news/articles/cvg7vpyn5pxo
1•alastairr•3m ago•0 comments

I use Anki to learn anything

https://jdlms.site/blog/how-i-use-anki-to-learn-anything
1•tietjens•5m ago•0 comments

Show HN: Simple Ledger

https://simple-ledger.app
1•heiswayi•9m ago•0 comments

Show HN: GTM Jobs – a weekly job board for GTM engineers (27 roles this week)

https://gtmjobs.beehiiv.com/p/gtm-engineer-jobs-this-week-27-roles-up-to-210k
3•meetvolley•9m ago•0 comments

Show HN: Create animated explainer video from a prompt

https://github.com/scosman/videowright
1•scosman•9m ago•0 comments

What are these artifacts on Google Maps?

https://www.google.com/maps/place/Bar+Miralago/@46.01658,11.2509747,992m/data=!3m1!1e3!4m7!3m6!1s...
1•abbassix•13m ago•1 comments

The Boom That Sprays One Weed at a Time – Mobility and Field Robotics

https://atomsfrontier.substack.com/p/the-boom-that-sprays-one-weed-at
1•jpatel3•13m ago•0 comments

Writing code versus shipping code: Productivity effects of AI coding tools

https://cepr.org/voxeu/columns/writing-code-versus-shipping-code-productivity-effects-across-gene...
2•rramadass•15m ago•0 comments

Software engineers are facing an 'identity crisis bordering on depression'

https://www.businessinsider.com/software-engineers-face-an-ai-identity-crisis-vc-partner-says-2026-6
3•robtherobber•15m ago•0 comments

A Teardown of Claude Tag's Agent Identity Concept

https://promptql.io/blog/a-teardown-of-claude-tags-agent-identity-concept
1•manushikhanna•15m ago•0 comments

Show HN: Kranth – test your idea on AI personas before real users see it

https://kranth.ai
1•iamdecatalyst•16m ago•0 comments

Instant Replay for Desktops

https://rewindly.app/
2•degecko•16m ago•1 comments

Benchmark unlimited Claude.md files against eachother

https://github.com/emiliolugo/clawmark
1•emiliolugo•17m ago•0 comments

Qualcomm to Acquire Modular

https://investor.qualcomm.com/news-events/press-releases/news-details/2026/Qualcomm-to-Acquire-Mo...
1•vovavili•17m ago•0 comments

One Sensible Choice at a Time

https://www.birdy.chat/blog/one-sensible-choice-at-a-time
1•rmesters•17m ago•0 comments

What Is Claude Code's Automatic Mode

https://www.polimetro.com/en/What-is-Claude-Code%27s-automatic-mode/
3•Gedxx•24m ago•0 comments

Show HN: Multi Agent Protocol for AI Scientist by Hexo Labs

https://github.com/hexo-ai/socrates
2•martianvoid•27m ago•0 comments

IBM claims first sub-1 nanometer chip technology

https://arstechnica.com/gadgets/2026/06/ibm-claims-worlds-first-sub-1-nanometer-chip-technology/
2•Gedxx•29m ago•0 comments

No one is self-made

https://aeon.co/essays/zhuangzi-and-the-case-against-meritocracy
4•robtherobber•29m ago•0 comments

What is IBM's nanostack chip architecture

https://research.ibm.com/blog/what-is-a-nanostack
1•rolivercoffee•30m ago•0 comments

Emperor penguin chicks jump off a 50-foot cliff in Antarctica

https://www.youtube.com/watch?v=4PwDFddpo4c
1•bookofjoe•30m ago•0 comments

Show HN: Claude Code Session Trace/Browse Tool (Python)

https://github.com/yonk-labs/claude-session-analyzer
1•TheMadHatter76•30m ago•0 comments

The protocol is not the thing to get good at, the AX discipline is

https://www.oreilly.com/radar/stop-getting-good-at-protocols-get-good-at-agent-experience/
1•developsean•31m ago•0 comments

'Digit' maker Agility Robotics to go public in $2.5B deal

https://www.geekwire.com/2026/digit-maker-agility-robotics-to-go-public-in-2-5b-deal-heres-what-t...
1•ripe•32m ago•0 comments

The Architecture Rules a Linter Can't Check

https://defendi.dev/blog/architecture-rules-a-linter-cant-check
1•mooreds•33m ago•0 comments

White House Helped Mark Zuckerberg and the Google CEO Dodge a Senate Grilling

https://www.politico.com/news/2026/06/24/white-house-helped-mark-zuckerberg-and-the-google-ceo-do...
1•giuliomagnifico•33m ago•0 comments

Show HN: The open-source AI bookmark manager for busy people

https://www.cachd.app/en-US
1•gsmt•34m ago•0 comments