In some disciplines, courses must be taken in a particular sequence over a number of semesters.  Examples include sciences, languages, art and music.  Other majors have relatively few guidelines for completing major requirements.  That is, they may specify the overall number of required courses, but have very few specifically required courses or course sequences.

You should identify any required sequences in potential majors/minors and begin taking them early.  If you wait until you have chosen a specific major, you may not have enough time to complete the coursework.

tips for course sequencing

Read the course descriptions for required courses in your major to determine prerequisites. This is often easier if you start with upper-level courses and work backward. Remember, too that ConnectCarolina will not always prevent you from registering for a course that you lack the prerequisite.
Identify the longest sequences – you must have time to complete these before graduation.
Understand the course numbering system. 100s are introductory; 200-300s are intermediate; 400-600s are advanced. Err on the side of caution and check with the department or instructor if you are unsure about your preparation.
Read the full description of the major, not just the individual course descriptions.  Some departments require or recommend introductory coursework before proceeding to more advanced levels.  For example, Art requires completion of at least one introductory course before enrollment in an intermediate course.
In some majors, it may be difficult to enroll in intermediate or upper level courses before your third year.  In the interim, work on general education requirements, other majors or minors you intend to pursue or electives that support your long-term goals.