I'm an high school student who likes mathematics. So my question is the following. At this level of math is Wikipedia a good resource for expanding what I learn (e.g., I learn about something but I need to dig deeper)? At school for example I find these articles very interesting.
and so on...
But I also like looking at some pieces of mathematics that aren't taught at school, like
and other articles... I also, of course, explore this site as well some youtube videos related to math (ex Numberphile on youtube)
So, let me reformulate the initial question. Is this "method" for learning math ok? I know that Wikipedia is not like a book for learning but quite often it has taught me something in a solid way. Also do you know other online resources, as well as books?
ps I'm not English (I'm Italian) so I made some errors