The CS-STEM Network allows teachers to offer robotics curriculum using popular robotics systems like the LEGO MINDSTORMS, VEX IQ, or VEX EDR CORTEX (VEX EDR V5 coming this year!).
As a teacher, you have the ability to invite students (or generate students accounts if they do not have email addresses) and track their progress as they work their way through the lessons.
Feel free to take a look through the curriculum offerings at www.cs2n.org/curriculum and start using the courses in your classroom!
Tutorial videos can be found here: https://www.youtube.com/playlist?list=PLLEIq9At0t2tdIM5-BMM9hlgD69soBylv