Ask students for ideas about how to solve the conflict. Elicit ideas from the whole class at this time, not just the students who acted out the scene. Invite other volunteers to role play the steps in the mediation process. Ask the other children to help you coach each group through the process. Repeat several times, until you feel confident the children understand the process.
Primary children learn more efficiently when they involve many modalities.
To help the students retain the steps in the mediation process, you might make up a little routine to help them recall each step. Divide the class up into groups of four students each. Have each group role play the same story, taking turns being mediator. Ask students if they understand the assignment. Walk around, coach, and compliment.