Updated 15/9/19
Order does matter!
It is very important that students fully understand that the order in which they do things is critical to solve problems. The challenge linked here is a simple example which clearly shows students that "order" does really matter. It just requires a set of direction cards, a START square and a few stickers to mark finishing points on the floor.
This exercise is a great example of computational thinking especially if you offer your students the opportunity to develop their own challenges (games) using the same set of supplied resources.
One could be to ask them to place their marker where they think their BeeBot will finish BEFORE they press GO on their BeeBot.