Sheet Cake Clip Art How Do I Make A Sheet Cake?

How do i make a sheet cake? - sheet cake clip art

How do I make a cake, a full sheet .... I want to know just the cake mix like Betty Crooker or not to buy anything to start from scratch, but I do not even know what the size of a sheet cake ... I also need to make what size pan and how do I get a loaf of bread after cooking is finished, it will be my first attempt to bake a cake. For my son's first bday party. ideal or suggestions are appriciated thank you in advance.