There are several ways to reuse a course or parts of a course:

• 15.1 Import Course : one process to duplicate course content from another course on the same Moodle System.
• 15.2 Backup Course and 15.3 Restore Course : backup process and restore process, can transfer course data between different Moodle Systems.
• 15.4 Duplicate a resource / activity in the same course.

Note User Data in the activities CANNOT be duplicated, for example, user data of News and Announcement, Forum and Assignment.