Name it something unique, like 'arch101_imperial.dwt'. You can have the students do it, or have in ready in their template folder the first day of class. This way it will all be done and ready to use. Make sure and pre-assign the linetype to the layers. You can also add dimension styles, layers, layouts, and blocks like title blocks to it. You will need to create a custom template with the linetypes that you always want loaded and start all your new files with it.
