Once you've built content and a delivery system, it's a good idea to reuse the course or parts of the course. You can reuse activities in a number of ways. Moodle offers you the ability to reuse your course, or part of the course within the same Moodle system or another Moodle, by using the Backup/Restore function.
The following are the steps to reuse activities and parts of activities:
In the ADMINISTRATION block, click on Assignment administration.
From the options, select Backup.
Check the boxes next to the types of items to backup.
Click on Next on the screen and rename the file if desired.
Download the file and save it to a location where you can retrieve it easily at a later date.
To back up a single activity from your course, follow the same procedure. If you want to reuse content within the same Moodle site, you may simply restore them. If you want to use them on a different Moodle site, download them and save them locally.