If we are teaching in a classroom where there is more than one robot available, we often use the “Mexican Wave” as an “extra” after the students complete the “Approaching an Alien” tutorial that (if you are following these tutorials in order) your students will have just completed. In the wave, each robot is lined up in a straight line, with each robot having a different starting delay, giving a “wave-like” effect as the robots are started simultaneously. This is good fun, and advanced students can often invent lots of interesting & fun variations of the wave, if you have time to allow them to do so.
If you are still unsure about what a “Mexican Wave” is, here is a crowd example:
and an example of an EV3 Wave: