I need to build 6 boxes out of plywood that are 3 feet high 3 feet x 3 feet could some help me get a parts li?

someone help me get a list of how much plywood i need and how much strapping or 2x4 i need maybe spit them in half for boarders or use strapping for border i also need tools list please help my father thinks i am useless and i want to prove that i can build these but i need directions and he said get them on your own a.s.a.p. please help and also a list of supplies needed i could do this but i need directions i am not a carpenter i am 12 years old.