Corequisites are courses that a student must take simultaneously with another course. This requirement ensures that students have the necessary knowledge and skills to succeed in the primary course. For example, if a student is enrolled in a chemistry course, they may also need to take a chemistry lab as a corequisite to apply what they learn in lectures. Corequisites are often designed to enhance the learning experience by providing practical applications of theoretical concepts. They help students build a stronger foundation in the subject matter, making it easier to grasp more advanced topics in future courses.