Plicker is the perfect tool to collect classroom feedback without the need for student devices. It has been used widely in K-12. How about using it in higher education? It is a bit prep work to prepare the Plicker card for multiple answers but instructors can reuse them. And the best thing is, instructors can instantly see who selects what answer, which is not exposed to student peers. It is still fairly low risk for students to make mistakes but huge opportunity for inform teaching.