The number of units in a book indicates how many basic ideas must be mastered in the book. a. true b. false

True

Explanation:

Books can use many different structures and there are usually many different ways in which they can be divided. One of these is dividing a book into units. This is most common in textbooks and other procedural texts. Most of the time, each unit of the book contains a basic idea that must be mastered. Therefore, looking at a book's structure can help you understand the learning expectations.