List the main moral that you wish to impart to your audience. This idea will guide you through writing your skit.
Write one sentence that describes the opening of the skit. This should describe what the protagonist is seeking or experiencing as the skit opens.
Make a second sentence that describes the event that will lead him toward the final part of the skit. This could be meeting a character that tempts him to do something wrong, or finding an object and deciding what to do with it.
Write a sentence describing the outcome of the decision the protagonist is required to make, and a brief sentence or two that describes the message you wish the children to receive.