Step 1: Click the Activity Bank icon.
Step 2: Click + button
Step 3: Click Activity.
For Assignment:
Step 1: Click Assignment.
Step 2: Fill in the necessary information and then click Save.
For Quiz:
Step 1: Click Quiz.
Step 2: Fill in the necessary information and then add a quiz to the bank.
For Material:
Step 1: Click Material.
Step 2: Fill in the necessary information and then submit.