USA schools should not make a purchase here, but instead purchase a license directly at http://virtuallabs.ket.org/physics/
This product is for international users only, who are unable to use their credit card through the regular web site. You must first request a free trial at http://virtuallabs.ket.org/physics/free-trial/
This is a one-year student user license for a non-USA university or college student. You will need to purchase one student user license for each student.
You will also need to add one Univesity Site License to your cart before checking out.