AMID the noisy class, Putri Zulzali spoke out loud, “Parama says, sit orderly.” The students who were busy chatting and playing with each other immediately sat in order, arms neatly folded on the desks. The class became quiet in an instant.

Putri, a first grade teacher at State Elementary School (SDN) 34 Cakranegara, Mataram, West Nusa Tenggara, then said a sequence of numbers: 3-2-1. The students spontaneously yelled, “yes, wu