Dominican Order is a special type of group where people go to learn about how to be really good Christians. There are some special rules they follow, and they are called "Dominicans". These people are kind of like really smart teachers that learn a lot about God and they teach other people. They wear special clothes that make them easy to recognize, like a big white robe with a black hood, kind of like Harry Potter.
The order started a long, long time ago by a guy named Dominic who was a really good Christian. He wanted to help people, so he started traveling all around, teaching people how to be better Christians. Lots of people started to follow him because they thought he was really cool and knew a lot. When he died, his followers decided to start an order in his honor.
Today, people who want to be Dominican have to follow a certain set of rules. They have to learn a lot about God and praying, and spend lots of time thinking about how they can help other people. They live together in a special place called a monastery, where they study and pray together.
Overall, the Dominican Order is kind of like a special club for people who want to learn a lot about God and be really good Christians. They try to help other people and live together in a special place where they can focus on their teachings.