Yes, there are many ways to get the student’s attention. Yelling is much easier on the body that the bokuto! Or even a swift slap upside the head! An occasional shout at the younger students seems to be adequate when their attention wanders. I’ve had kindergarten students fall asleep, in their chairs, after lunch, and almost fall over before I could catch them! Yeppers, a shout is a good thing every now and then.