Polling (a.k.a. "student response systems")
Student response systems offer a great way to ask anonymous questions to the class, especially during class time. This can be helpful to gage whether students understand the material or to spot common misconceptions. It might also be an icebreaker for an in-class discussion.
For inquiries ranging from fast Canvas help to information on how to redesign your entire course, your best starting point is to email the learning design experts at Northwestern at canvas@northwestern.edu.
Other help resources:
Canvas Help Hotline: 855-680-0126 (Fast help from a person)
Faculty assistants are trained in how to create and support Canvas courses.