We really used 3 different sized balls and not all canícas so that we could guess what size line each would make in the paint, and then compare to see if we were correct etc…
Sofía was really so-so with the actividád, so I had to really, really, really hype it up.
What she LOVED was using the canícas to paint. Instead of letting the balls roll, she dipped them in paint and like one would a paint brush and painted her canvas that way.
She also used her fingers and hands and the caníca.
It ended up being a sensory, science, painting actividad!