• Head over to the Adalo website and sign up if you haven't already.
• Once you're in, hit the "+ Create New App" button.
• Pick either a blank app or a template that fits a virtual classroom vibe.

• Click on the "Database" tab on the left side of the builder.
• Create a new collection called "Users". Add properties like "Name", "Email", "Role" (Teacher/Student), etc.
• Make another collection named "Classes" with properties like "Class Name", "Description", "Teacher", "Schedule".
• Add a "Materials" collection with properties like "Title", "Content", "Class" (linked to Classes).

• Start with a Welcome Screen. Add input fields for "Email" and "Password", and buttons for "Sign Up" and "Log In".
• Create separate screens for different users: a "Teacher Dashboard" and a "Student Dashboard".
• Design an "Add Class" screen with input fields for class details like "Class Name", "Description", and "Schedule".
• Make a "Class Details" screen to show each class's info and add options to upload materials.

• Add a Sign Up screen with fields for "Email", "Password", "Name", and "Role".
• Add a Log In screen with fields for "Email" and "Password".
• Use Adalo's built-in User Authentication to link these screens to the Users collection.

• Set up navigation to send students to the "Student Dashboard" and teachers to the "Teacher Dashboard" after logging in.
• Make sure students only see student-related screens and teachers only see teacher-related screens.
• Link the "Add Class" button in the teacher dashboard to the "Add Class" screen.

• In the "Classes" collection, set up a relationship linking each class to a teacher.
• In the "Materials" collection, link materials to their respective classes.

• Let teachers add new classes and upload materials via forms on respective screens.
• Enable students to view available classes and access materials for their enrolled classes.
• Add features for real-time interaction like chat or video conferencing if needed using third-party integrations.

• Before launching, test the app thoroughly to make sure everything works as it should.
• Create test accounts for teachers and students and go through each process step-by-step.
• Adjust design and database relationships as needed based on the test results.

• Once you're happy with the app's performance, go to the settings and publish your app.
• Share the app with intended users via a link or publish it on app stores as needed.

Using these steps, you can create a comprehensive virtual classroom in Adalo, allowing for seamless interaction between teachers and students.