Animation

Animatron (web-based HTML 5)
editor.animatron.com/

SYNFIG STUDIO
www.synfig.org/

White board / Paper Stop Motion
​iMotion HD https://itunes.apple.com/us/app/imotion-hd/id421365625?mt=8 “iMotion HD is an intuitive and powerful time-lapse and stop-motion app for iOS.”
Using iMotion HD for RSA type video https://www.youtube.com/watch?v=NhhZEufLa4c
​White Board and Paper example:  http://www.youtube.com/watch?v=48SIW3SVra8
Student Example: Jake J. http://teens-inspired.org/post/115226921435/student-name-jake-jeffries-title-of-work-trouble 

We use common whiteboards, clay, post-it notes, and all other kinds of materials.
TaoTronics Universal Tablet Stand https://www.amazon.com/gp/product/B01E8QBOCY/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1