The Cisco Netacad Connecting Things course offers multiple labs with Packet Tracer smart simulations.
A license for using Packet Tracer is necessary. As a Cisco Academy linked to an official ASC Partner you are able to use Packet Tracer with your students.
The two following courses are a good introduction to the use of Packet Tracer:
- Packet Tracer KnowHow
- Introduction to Packet Tracer: https://honim.typepad.com/biasc/2017/09/introduction-to-packet-tracer-new-course.html