1. Within the Assign pop-up modal, select the Assign to drop down option and select Show All Classes (to assign to all classes) or select the individual classes that you wish to assign the resource to.  

2. The slider under the Assign to option is defaulted to On (blue) meaning the assignment is Open to any students within the selected classes. 

3. Finish entering the remaining assignment settings and press the blue Assign button on the bottom left to assign to your students.  Upon successful release, the teacher will receive an "Assignment Successful" confirmation message indicating the assignment has been released to selected class(es).