5 pages.
This is a wonderful activity to get to know your students and a terrific icebreaker for the 1st day or first week of school. 

It also makes an instant back to school bulletin board that showcases your new students!

Students draw a self portrait in the center of their stamp, write where they were born and their birthday in the cancelled circle (just like a real postmark), think of 3-5 words that describe themselves, and find pictures of their hobbies, interests and things that represent themselves, using stickers, clip art, magazines, drawings etc.