Yeah when I first started I had no idea how to use a class. Still to this day though, I dont understand using classes for things a regular method can do. The only time I use them is for obviously different pages, then custom types (like the Digital Outs, Anal. Ins, and Dig. Ins), and things that are the same that would be good to use on different pages (like a dec to binary string converter type thing).
The 1 class I took in C#, the professor was obsessed with classes. Drove me crazy. Had to make a class just to get/set a variable and add/subtract... Useless. Like Calculator class and then myCalcClass.Subtract(int a, int b)... Why not just a - b. So much simpler. That guy really ****ed me off.