Three J's Learning

A survey request from our recent flight: 대한항공과 함께 즐겁고 편안한 여행 하셨는지요? 고객님의 소중한 의견을 듣고자 설문조사를 실시하고 있습니다. 잠시만 시간을 내주시면 감사하겠습니다. We hope you had ...

This summer, we are working through Jared Lichtman's recent proof that the primes achieve the maximal Erdős sum over primitive subs...

misère version of go problems slinky tangles (more seriously, links with secondary structure for alpha-helix protein folding)  caesar ciphe...

Putting this here for no particular reason. Queen's Gambit: B+/B. Entertaining, with some issues.   1.  The ending was too perfect, but ...

A collection of videos for studying go and chinese together, for J1: — Beginning level tutorial, this series is made almost 20 years ago...

I've had a chance to spend more time doing math with the kids again and am hoping to write up our activities more consistently.  Let...

A quick list of resources for an elementary school parent Resources depending on prep time: Grab-and-go NRICH activities and games:...