Please have the professor or academic instructor visit the Tableau website below:

https://www.tableau.com/academic/teaching

They will need to submit proof (faculty webpages, course syllabi, appointment letters, etc.) that they’re actively teaching to receive their licenses.  

Information on the licensing is available here:

https://community.tableau.com/s/news/a0A4T000002O0vaUAC/tableau-for-teaching-faqs

They will typically need to request an individual license for themselves and a bulk lab/student license if needing to provide for their class.

If needing to install the software in a class/lab where it is not already installed, please submit a ticket to desktop administration.