Teacher Mode allows you to manage EduNetworkBuilder classwork. This is not a complete student management system. It is mainly a means to keep students from cheating by submitting each-other's homework, for tracking student submissions, and for letting you see which homework still needs to be graded.
You will create a teacher file, which will end up containing the contents of most of the students files. The main idea is to create a new teacher file every year, to import a student list, and then generate an initial student file for each student. As the teacher, you can open each of the student files.
You can give the student initial homework, which can be included in the file you gave them initially. You can also export individual homework files which can be imported as you go along.
The students will use their files for tracking their progress in various things, and for submitting homework. When they submit homework, you will need to get a copy of their student file and import their submitted homework back into your teacher file.
After you have imported the homework, you can open their homework (nicely sorted underneath the student) and see what they have submitted. Once you are done looking at it, you should mark it as being graded. The program does not give you the option of specifying the grade or anything like that. You should be keeping your grades elsewhere. This simply manages the flow of homework.