It takes some preparation to set up your classroom for App Inventor. This page explains what you need to do in advance and what you should let the IT people know to set up at your school.
This page includes various tutorials of all levels useful in a classroom.
MIT is building AI tools into App Inventor that will enable even beginning students to create original AI applications that would have been advanced research a decade ago.
This site includes information and tutorials for various connected devices that can interact with apps created with App Inventor.
Here you'll find links to other curricula and resources developed by educators from around the world.