The structure of undergraduate curricula often includes a significant number of preparatory courses, typically referred to as prerequisites. These courses are designed to ensure students possess a foundational understanding of essential concepts before advancing to more specialized or advanced material. For example, a student pursuing a degree in engineering may be required to complete courses in calculus, physics, and chemistry before enrolling in upper-level engineering courses. This is to ensure the student has the necessary quantitative and scientific background to succeed in those more specialized courses.
The prevalence of required preparatory coursework serves several important functions. First, it aims to standardize the level of knowledge among students entering a particular course, enabling instructors to teach at an appropriate pace and depth. Second, it helps students build a solid foundation in fundamental principles, which is crucial for comprehension and application in subsequent courses. Historically, as disciplines have become more specialized and complex, the need for a structured and sequenced curriculum has increased, leading to the expansion of prerequisite requirements. Furthermore, accreditation standards often mandate specific foundational knowledge in various fields, contributing to the number of required preparatory courses.