So, there is a fantastic new app out there called "Amaziograph". If you don't have it for your iPad I highly recommend it. Totally addicting. Basically it is a patterning app that takes what you draw in one section and puts it in all the other sections. It copies what you are drawing as you are drawing it. I love it so much I got super excited while playing with it.
This brought the interest of my children. Oh my, you think I had fun, apparently my kids had a blast too and I don't want to share! Haha.
I must point out that I am currently operating on an iPad 2, 7 years old and currently getting slower and slower with the latest IOS updates. If you have an iPad Pro, get this app! It is way too much fun!