Collaboration Activity (good for mentor time) from: In the middle: Life as a seventh grade language arts teacher. The Cup Challenge - teach students how to work in cooperative groups with this simple and fun challenge.
Just made this Question ball. While in a circle, Have students say the name of the person he/she is throwing to (to practice learning names). The person who catches it says their name again and answers whatever question their right thumb lands on.
Listening - Even though this says "listening game for adults", I think it would be great for the elementary classroom as well. It gives students the opportunity to strengthen listening skills as well as cooperation skills, plus it would be fun!