I wasn't able to find anything by searching on here but I was wondering what program J.Y. was using to explain the problems. I think that it would be very helpful for going over the pdf question sets and save me from having to print out multiple copies. Thanks!
Comments
Five years later and maybe someone else answered this but it looks like J.Y. uses this software: https://bubbl.us
I believe he used MS paint for some of the earlier videos, but now most of his videos are done with a drawing tablet and pen. I am certain he used MS paint before when the cursor was a big red cross because he cracked a joke about it, but I'm unsure of what he currently uses. Either way MS paint will do just fine.