I have done the Elf on the Shelf in my middle school math classroom for the past 3 years and my students LOVE it. I have pre-made 12 days of "warm-ups" that your elf will leave each day for your students.Students love getting into the holiday spirit at school too! All you need is your own Elf, a name for him/her (ours is Hypatia-the first woman to contribute to mathematics), and to print out the daily warm ups and place your elf in a new spot each day for your students. Enjoy!!