All courses need to “fit in” to the curriculum of the department in which they are taught.
Prior to building your syllabus, talk to the appropriate members of the department in order to find out how your course(s) fit into their curriculum. What will students have already learned or experienced prior to coming into your class? How should the course prepare students for the courses they will take after yours?
Once you have the answers to these questions, you will be much better prepared to create a syllabus that provides experiences for students in your class that will be in keeping with the rest of their education within the department.