Personalized Teaching Rocks Toddler Full Zip Hooded Jacket. Teaching rocks text with three dancing rocks holding books on Math, Science and Literature is a humorous design for educators and student teachers at back to school, birthdays, holidays and graduation. 7.5 oz., 60/40 cotton/polyester. Jersey-lined double-needle hemmed hood. Pouch pockets for all their treasures. Coverstitched shoulders and armholes. Coverstitched rib waistband and cuffs.