The video shows how to set tasks to multiple classes at once, or alternatively, read the three steps below.
Step 1: Search
Find the task you want by entering key terms into the HegartyMaths search box
Step 2: Set
Once you are satisfied it is right for the students, click on "Set task"
Step 3: Select
Decide what classes you want to have this task
Then click "Confirm & set work" to set the task to all students in these classes