Scale copies are basically where you make a copy of something and make it bigger or smaller. Right now in class we have been taking measurements of the school and preparing to make a scale copy of it. This has been a very interesting project and I think that it is kind of fun.
The definition of a proportional relationship is a relationship between two variables where when one variable changes, increases, or decreases the other will change at a constant rate. The constant rate is viewed as a constant ratio between the two variables.