LEGO MINDSTORMS EV3

There are a number of tools available online to help you play the game. You just seed the initial conditions and leave the game. Let's look at some of the sites.

DIfferent wheels and tires will result in different behaviour of the robot. That is actually pretty common sense. The real question is what is the influence. Would the robot make smaller deviations if it has smaller wheels or it will make larger deviations? The tires could also be quite dirty or brand new. Or the wheels could be attached in different ways. 

When building Tank robots with EV3 there are a number of different options for Treads. Just make sure you have the once that are coming with LEGO Mindstorms EV3 45544 and 45560. The complete part name is Part 57518 Technic, Link Tread Wide with Two Pin Holes. 

Prepare the field while your students are building the robots. You may choose a square with rounded angles (as shown on the picture) or any other closed curve. You may use a sumo wrestling vinyl field or draw the field by using tape. robot sumo mat file

What a teacher must look out for, while students are building a robot from instructions.