When teaching my student's about conducting, I have them do a practical test and a written test.
The written test includes their knowledge of how to conduct certain musical elements, as well as the conducting patterns for 3 of the main time signatures (2/4, 3/4, and 4/4)
*Note: I have provided an answer key. However, due to culture difference, some of the answers may differ based on how you teach your class. Even though I am in Canada, I use many of the European methods.