Suggestions please read

I am going to be making an interactive java tutor in director for my final year project, the key word being interactive I don't want it to be a long presentation.
I am not sure if this forum is the correct one so I am sorry if it not but could anybody give me there suggestions on how they would like a interactive tutor to be?
For example some ideas I am passing around at the moment is have games at the end of lessons so if you learnt about arrays I might put a game asking a user to type out how to find the length of the array etc.
Any suggestions will be really helpful.

The first question I have are you tutoring on the java syntax (what is legal), correct java programming as defined by SUN (good practices and proper application of technologies), all the related technologies required to J2EE/java well (concurrent programming, security, tcp/ip, iiop,.....)
There are several problems.
1)Presenting the matierial in a way that people will the learn (first step process is the best that I have observed).
2) What you are presenting for learning. Coding requires practice. I have not observed any tutorials having any really good methods of testing code snippets or whole applications. I would consider it an absolute must in a tutorial system. The problem is that in programming there are an infinite number of ways of accomplishing the same thing. Unfortunately there is usually only one optimal way, and depending on various choices you make the optimal path changes.
I would tend to belive that Higher level concepts (ooad, theory side of concurrent programming or network programming, artifical intelligence, agile programming) would be easier for a tutorial system. I would

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