If you are searching for a martial arts school for your family you want to make sure that you do your research. The first thing you watch for is discipline and respect. How do the students and instructor conduct themselves? Do the students come in and quietly prepare for class to begin? Do they take their shoes off and bow before entering the training floor? Do they wait at attention for the instructor to or senior member to bow them in to enter the training floor? Is it yes sir and no sir? This is how you can tell a traditional martial arts school from one that is not. How we conduct ourselves in the martial arts is the most important thing.
You should also sit in on a class and see the techniques being performed and taught by the instructor. Does he explain it well? Does he break it down in a way that the students can understand it? Does the instructor use constructive criticism when correcting his students? How knowledgeable is the instructor? Do you feel like he has the experience and skill to bring you to the level you want to attain? Does the school teach a variety of things such as kicking, hand techniques, forms, self defense, and combinations? Asking these questions and knowing what to look for will help you to make the right decision.