At our new church the pastor has a class specially geared for the new converts. He goes over again the things they learned at the evangelistic series that brought them in to strengthen their foundation. He is also very good at building relations with regular attending visitors whom he encourages to attend his class. My wife and I attend his class quite frequently and it is very good. What I'm finding from teaching the adult class for so many years is that many who should have a good solid foundation based upon what's covered in the evangelistic series don't have that solid knowledge. And because of this it's hard to take their thinking to a deeper level of understanding.