Well, I can't really say as I'm sure what you mean. The classifying of ichidan and godan verbs...? That suggests to me telling the difference between them, or something, but I don't really see how that would be much of an issue.
If you're just talking about learning how to conjugate verbs into different forms in general, then... well, obviously you have to learn how to conjugate them, or, well, you won't be able to conjugate them Learning each of the different forms one by one in a logical order, practising using them in sentences as you go along, is the usual method...
At any rate, if you are trying to teach the language to yourself, I'd say the least you should realistically do is get yourself a decent textbook. Many people will tell you - and I can certainly see where they're coming from - that even a textbook is never enough, and you can't really learn Japanese without actually taking proper lessons.
If you're just talking about learning how to conjugate verbs into different forms in general, then... well, obviously you have to learn how to conjugate them, or, well, you won't be able to conjugate them Learning each of the different forms one by one in a logical order, practising using them in sentences as you go along, is the usual method...
At any rate, if you are trying to teach the language to yourself, I'd say the least you should realistically do is get yourself a decent textbook. Many people will tell you - and I can certainly see where they're coming from - that even a textbook is never enough, and you can't really learn Japanese without actually taking proper lessons.