Use Bulk Edit to perform actions on many items at once. With Bulk Edit, you can:
Release many items at once to students.
Include many items at once in course grade calculation.
Delete many items at once.
Go to Gradebook.
Select Gradebook from the Tool Menu of your site.
Click Bulk Edit.
Make changes in Bulk Edit Items.
In the header row, check Toggle all associated with Release to students, Include in course grade calculations, or Delete to perform the respective bulk edit.
Check individual items in the Release to students, Include in course grade calculations, or Delete columns to perform the edit for just those items.