To get to know each other and have a "ball" at the same time, I always incorporate "Snowball Fight" into my first day of school activities. Give the students a clean sheet of white unlined paper. Have them write 3-5 unique things about themselves. Tell them NOT to put their name on the paper. Next, have them crunch the paper into a ball. Have them stand in a large circle around the room. Then allow them one full minute to have an all-out snowball fight! When one minute is up, have them locate a "snowball" nearest to them, unfold it, and take turns trying to guess who it is. They absolutely LOVE this activity! It loosens them up real quick and they will remember it always. Many of my students tell me it was the best minute of fun they had all year!