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Lower-division courses are introductory classes. Upper-division classes generally specialize in your chosen major and are more advanced.

Community colleges do not offer upper-division classes. Usually, you must take lower-division courses before enrolling in upper-division classes.

A student's career choice may require a degree beyond the Associate of Arts, Associate of Science or Certificate completed at a community college. Generally, community colleges offer classes that are at the freshman and sophomore levels. For some careers, an associate degree is sufficient. However, other careers may require the advanced classes offered at four-year institutions.