Many new terms are introduced and defined. Specialized terminology has to be learned and used accurately. Precision is vital. Accuracy is crucial in vocabulary, in problems, and in applications. Material includes both abstract and factual information.
Detailed information is important, as well as the theoretical basis.
Both have to be learned. Concepts are applied to new situations. Knowing a textbook explanation is only the beginning. You have to know how and when to use what they have learned. Much of the work is problem-solving.