Since your class is probably waaaaaaay different than anything your learners have experienced before, take some time to explain why you do what you do. In this video you will see me lead a discussion on how languages are learned so that your learners have a grid for why you are doing what you are doing.
Eric does an amazing job of explaining the last 50 years of second language acquisition and its theories for average joes like you and I.
This CI/TPRS website has great resources including the original "CI explained with MEMEs" document I use below.