Look Kool

What is a structure and how do you make it sturdy? Hamza wants a new bookcase to replace his rickety old one. He enlists the help of an apathetic beaver to build it, and learns that there are three forms that make the basis of all structures, frames, shells, and solids! Each has unique properties that make it suited for different purposes – but you might be surprised by the results…who knew you could make a real canoe out of concrete?