There are two ways to join your teacher's Google Classroom:
Entering the class code
Teacher inviting you by using your student email address.
Click the + (near the top right of the page), and then click on 'Join class'.
Enter the class code given to you by your teacher in the box in the middle of the page. Then click 'Join' in the top right corner.
Click 'Join' on your Google Classroom page.
Click the + (near the bottom right of the page), and then click on 'Join class'.
Enter the class code given to you by your teacher in the box in the middle of the page. Then click 'Join' in the top right corner.
Click 'Join' on your Google Classroom page.