I like Kenneth Merrell's series for medium to large groups, or class-wide, especially as a proactive program for a group of mixed identified and unidentified social needs:
http://www.brookespublishing.com/resource-center/book-series/strong-kids-curricula/Here's the grade 3-5 previous edition on Amazon:
http://www.amazon.com/Strong-Kids-Emotional-Curriculum-Curricula/dp/1557669309This is Arnie Goldstein's classic, first developed with youth in detention centers. Tons of research on its effectiveness. The version for elementary would be appropriate:
http://www.skillstreaming.com/Michelle Garcia Winner's highly-respected programs. Search by age/grade, and look for group curricula:
https://www.socialthinking.com/From the Committee for Children, this is also a classic:
http://www.cfchildren.org/second-stepHowie Knoff's Stop & Think:
http://www.voyagersopris.com/curric...top-think-social-skills-program/overviewEmotes is a slightly different approach, which emphasizes emotional language, and uses a collection of cartoon characters (a la "Inside Out"):
http://www.emotes.com/v2/index.php