To sign champion, point upward with the index of your non-dominant hand, and make a cup facing downward with the bent fingers of your dominant hand (shaped like a claw). Place the "cap" on top of your index finger once. It is like putting a crown on the champion of a race.
Champion is signed a bit like mushroom, so be careful not to get the two confused.
Teach your baby or toddler the champion sign when you are describing the winner of a sports competition on TV or in their story book, or when you are watching the Spelling Bee of their older sibling, and the winner has been announced.
This is a useful flash card taught best in conjunction with other sports or competitive game flash cards. It is good to inculcate a healthy sense of competition on kids early on, and to show them what sportsmanship and good, clean fun is about.