Implementation

Teacher Prep

Engineering Design Process

Procedure/Method

It is up to each student to build the prototype as they see convenient. There is no guidance or mandate on what a successful towing mechanism looks like. 
Ideally, the dolly will be placed in one of a court or street with no weight on it. 
The students will build the towing mechanism using only the provided materials. 
If required, the "Captain" of the dolly (to be chosen by the teacher) will be the person responsible to hold the towing mechanism. 
The towing mechanism can be attached to the dolly using only the provided materials. 
The team towing the dolly can command the people in the dolly where to place themselves.