Wheels: "We wanted to show our teacher how to make a conveyor belt. You put the tubes in a box and paper around the tubes, when you turn the tubes the paper circulates."

Inventions: " I made a car with spools for wheels, cardboard for the body and straws for an axle. I did a roof by using 2 toilet paper rolls and a Styrofoam plate. I tested it on a see-saw that was our ramp and it worked."

Construction: "We had to make something that moved. We were trying to spin one wheel and then all the other wheels would turn. It was like cogwheels, they all spin together until the first one stops."

Megan Gardiner is currently a consultant for the Toronto Board of Education and was a teacher involved in the project. Nancy Moore is a free- lance consultant and was the coordinator of the Design and Technology Project.