You must Register for Robotics Club Here
Your FIRST task is to create your robot base (a suggested build is here if you need it). You will then get your robot moving forward and backwards by programming using the Makecode for EV3 environment.
IF you manage that, your first challenge is to build and program your robot to go across the board and back as quickly as possible (touching both sides of the robot playing field). You will probably need to use a sensor to do this.