* Simple and repetitive: "Go, [Team Name/Class Name], Go!" "We're number one!" "Yeah! [Team Name/Class Name]!"
* Animal-themed: "Roar! Lions! Roar!" (often accompanied by stomping feet) "Woof woof! [Class Name]!" "Hiss! [Class Name]!"
* Rhyming: "We're the best, we're the rest, we're the [Class Name]!" "We're gonna win, again and again!"
* Action-oriented: "Fight! Fight! Fight! For the [Class Name] might!" (often accompanied by fist-pumping)
* Incorporating the school mascot (if one exists): "[Mascot Name]! [Mascot Name]! We're the best in the game!"
It's important to remember that these are just examples. The actual war cries used will depend on the children's creativity and the specific context. They're often spontaneously created and evolve over time.