What to display to the class

If you display all student responses to the class then you lose some control. Students may try to be funny or make inappropriate responses if they know that their response will be shown to the class. This may occur even if you require them to enter an identifier.

There is however a pedagogical reason for displaying some responses to the class. To do this without the above disadvantage use the sort feature to bin the responses you want to display anonymously (e.g. right answers or answer that fit a certain category). This is described here How to sort responses and generate a spreadsheet.

You can then show the class anonymous selected responses and use this as a springboard for analysis of different methods of solution.