Free Multiple Intelligence test for kids - includes directions and a short video that explains how to administer it to your students. This looks like an interesting tool for finding and understanding students' strengths.
Do you have seating arrangements? How do you organize them? Alphabetically? Randomly? Separate and spread out the chatty kids? ;) Teacher memes pack: http://www.teacherspayteachers.com/Product/Teacher-Memes-Posters-Back-to-School-Class-Rules-1330648