A braid is like making a friendship with three pieces of hair. Imagine each piece of hair is a friend holding hands with the other two. They go over and under each other, taking turns, to make a nice, tight line. This way, they stay together and look neat, just like how friends stick together.
Think of a braid as a dance. The three pieces of hair are dancers, and they move in a special pattern. One dancer moves to the middle, then the next dancer moves to the middle. They keep switching places, creating a beautiful pattern, like a dance performance.
A braid is also like weaving a basket. When you make a basket, you take strips and weave them over and under each other. The hair does the same thing. It goes over and under, over and under, until the braid is finished. This makes the hair stay in place, just like how the basket stays strong and can hold things inside.