Where to start from..

when learning something new? Sometimes we try to bring the new subject close to something that we already know. Then we like to approach it by saying stuff like "oh it's just like..."

Sometimes it's a mistake, as we do not know anything close enough to the new subject even if we think we do. Like jumping on a snowboard just because we were good with that skateboard in middle school. ouch.
Learning how to code is not that dangerous by the way. and probably not as fun. Still this is how I am learning Processing.
The first is a sketch found on a Bruno Munari book. i just wanted to add some interactivity to it.
Second one is  a "polar clock". I took inspiration for that right here.

Good practice anyway.
Hope you enjoy.