First day activity for math classes (or any class). Have students write their name above the box and then draw a self portrait in the box. Then have students write facts about themselves around the box using numbers. For example: 13 = the number of candles on my last birthday cake, or 4 = the number of pets I have. I have students use at least 5 numbers.
I always make one for myself as an example, and also as a way to introduce some things about myself to the students. Could have students share one or two facts with the class.
If you would like to see my example that I shared with students check out my blog: http://middleschoolmathmania.wordpress.com/