using smartphones in the classroom

In this week's course Operational Infosec, we experimented with Mentimeter. I had prepared a set of questions, and participants used their phones to answer.

They voted on how to spend resources among Software Security practices:
Also on the relative cost efficiency of three crisis capabilities for our fictitious company:

And finally on the relative importance of 12 privacy principles.

Mentimeter is intuitive. This was our first try and yet it only took five minutes from question to voting result.