debug reflection

What is one debugging strategy that you used? One strategy I used is Moving things before other things. Sometimes things would come out right, or in the right order. So sometimes I would have to move things around the way I wanted it to work out. How would you help someone else learn how to debug a project? I would have them try it out just like we did. First create there own so they get a good feel for it. Then have them watch videos and do there own fixing.