Acclimate your students to the ins-and-outs of the legal profession. This should including making sure that your students are familiar with general legal terms and basic legal concepts, as you will likely be the first professor that they have in a legal course. Find out what your student's backgrounds are and slowly build on their legal understanding.
In order to aid in the learning process, ensure that you are fully prepared to introduce the given day's lesson in an effective manner. One way to succeed at this is to construct class presentations, such as power point slides, that will provide a visual aspect to your daily lectures. Legal theories can be abstract and dense, and a visual aid can serve to increase knowledge and understanding.
As a beginner, learning legal principles can be difficult, and discontent is often relayed; be prepared to encounter criticism concerning your teaching style and methods. Routinely survey your students to ensure that optimal learning is occurring, and if not, try to learn where your students are struggling. This is key to molding your teaching to ensure that complex legal issues are being understood and absorbed.