Scribbling on chalkboards is antiquated, pass…and perhaps the most powerful technology we’ve developed to date to discover abstract truths.
Why the Worlds Best Mathematicians Are Hoarding Chalk - https://www.youtube.com/watch?v=PhNUjg9X4g8
A Teary Goodbye to Hagoromo - Jeremy Kun - https://medium.com/@jeremyjkun/a-teary-goodbye-to-hagoromo-d29df12f3bce
The Chalk Market: Where Mathematicians Go to Get the Good Stuff - https://alumni.berkeley.edu/california-magazine/fall-2019/chalk-market-where-mathematicians-go-get-good-stuff
Why Do Mathematicians Love Blackboards So Much? - https://www.nhpr.org/post/granite-geek-why-do-mathematicians-love-blackboards-so-much#stream/0
Chalk: Materials and Concepts in Mathematics Research (Barany and MacKenzie, 2011) - http://mbarany.com/Chalk.pdf
Comparing Memory for Handwriting versus Typing (Smoker et al, 2009) - https://pdfs.semanticscholar.org/5bf4/2fb40ab80fbb0c8f2f54796e1c17a3ccee26.pdf
Memory for words location in writing (Bigot and Passerault, 2007) - https://www.researchgate.net/profile/Thierry_Olive/publication/299049267_Memory_for_word_location_in_a_text/links/5a44c6edaca272d2945c4a96/Memory-for-word-location-in-a-text.pdf
What’s Lost as Handwriting Fades - https://www.nytimes.com/2014/06/03/science/whats-lost-as-handwriting-fades.html
The Crucial Role of Recess in School (American Academy of Pediatrics, 2013) - https://pdfs.semanticscholar.org/b7cd/521f2569b6fe1f7a12f7d4839bd3d8e339f3.pdf
Want kids to listen more, fidget less? Try more recess… this school did - https://www.today.com/parents/want-kids-listen-more-fidget-less-try-more-recess-school-t65536