
The basic shape of a boat. Just like the one you made when you flattened amd moulded the plasticine ball.
What do you think is the big problem about rowing this kind of boat?
Do you think this boat can go very far?
How do you think people changed the design of boats so they could go further, faster and with less work?
Well if you thought "let's put a sail on it you might be heading in the right direction.
Try making a model of a boat shaped like a coracle and adding a mast a sail.
Any problems?