Which Flutter pattern should i choose for my app

I'm starting a new project, it will be an app, that will also work on the Web, used by two different users ( two interfaces, one for teachers and other for students/children ) : In one, teachers will publish some things that will be received by the children, like stories, videos, quizzes... The children will interact with them and the results will be sent back to the teachers. I'm going to use things from Firebase, like Firestore; and maybe some sensors. Also, i might implement, for the children, some kind of "helper", like a bot that will help them. Which pattern you suggest me to use? Or other recomendations on Flutter... thank you!