Taking a child development course!
I'm going for my Bachelor of Commerce, so the two are completely unrelated but I chose it for an elective anyways. And I'm so glad I did! Not only have I learned tons of stuff about children, I've also discovered lots of evidence and statistics to back up my beliefs about parenting. And because I can relate to so much of the textbook, it's much easier to learn and remember.
However, I am doing school online so I don't actually attend a class. I'm not sure I would be so thrilled with listening to a bunch of non-parents debating whether my parenting techniques are appropriate or not :)
What have your experiences been with Child Development courses?