We are to make a tent-like structure. Start with laying out the floor of the tent, then realize that one of the sides of the tent can also be laid out, later to be folded up. So after the first 4 sticks in a square, add an second square to the first one.
When folded up this first side, then what is missing to make the second side? Indeed, only two sticks! Count till 4: the first stick is already part of the bottom, then comes stick 2 and stick 3 that you put in place on the ground and against this bottom stick number 1. And stick number 4 is the stick that fold up with the other side. When you prepare for it now, you will see it happen in the next steps.