Numerous tools have common structures, such as permissions, the choice of an e-mail notification (on creation of an entity such as a folder or an assignment), and links to resources.
Initially, learning about some of the smaller tools helps before trying to learn tools that are more complex and dependent on other tools. One approach to initial learning is the use of the online help in combination with flashcards.
In general, the more permission the student role has in a course site, the more responsible the students are for their own activities, and the more student-centric is the teaching.
The Test & Quizzes tool, in combination with the Grade book tool, encapsulates much functionality and hence is harder to learn than tools such as Polls.
Consider your teaching workflow based on discrete learning activities such as writing an assignment or taking a test. Consider using tools such as Schedule, Announcements, and notification functions to communicate events clearly.
The Roster tool...