Having a one-to-one conversation with a student about their behavior can be very time consuming, and it’s often overused by teachers. But some situations call for it. When done well, it can build a relationship with the student and solve the problem, all without interrupting instruction.
If a child is extremely upset, do not speak to them until they are calm. When was the last time you had a productive conversation with someone who was very upset? Bide time by asking them to write down what happened, or ask them if they want to take a break for a few minutes.