Start by choosing a relevant story. Let's say you need to explain why teamwork is important. You could use the story of a group of ants. Each ant has a specific role - some gather food, some build the nest. Alone, an ant can't do much, but together they can create a complex and functioning colony. So, when you use this story to explain teamwork, it gives a clear picture. Just tell the story and then draw out the parallels to the concept you're explaining.
Well, first, find a story that has a moral or a main idea related to what you're explaining. For instance, if you want to explain perseverance. There's the story of the tortoise and the hare. The tortoise keeps going at a slow but steady pace, while the hare is overconfident and takes a nap. Eventually, the tortoise wins. You can use this story to explain that perseverance pays off. Explain how the tortoise's determination is like the quality we should have in real - life situations, like in our studies or work.