My Spanish 2 class recently read the book The Circuit for our literacy unit.  I used the socrative website to better facilitate our class discussions.  I posted the discussion questions and had students respond in the socrative website.  Then I projected the responses for all to see.  The great thing was the students' names were blocked.  I found students were more open in their discussion and were more willing to share in this manner.  This was an easy way for me to check for comprehension as well.  There was no fear of getting the answer wrong and there was better participation in class discussions.