You might be trying to sign in to Classroom with the wrong account. Check that you’re using the email account connected to Classroom. You sign in to Classroom with one of these accounts:
School account—Also known as a Google Workspace for Education account, this account is set up by an accredited school. It looks like you@yourschool.edu.
Personal Google Account—This is set up by you, or your parent or guardian. Typically you use a personal Google Account outside of a school setting, such as a home school. It looks like you@example.com.
Google Workspace account—This is set up by your organization’s administrator. It looks like you@yourcompany.com.
Note: You must have an active Internet connection to sign in.
If you can’t sign in with the correct email account and password, maybe your school’s administrator doesn’t automatically activate Classroom for new students and users. Ask your teacher.
Ask your teacher to send you a new class code. If the new class code doesn’t work, ask your teacher to contact the school’s admin.
A class code consists of 6 or 7 alphanumeric characters, for example, hjhmgrk or g5gdp1.
Note: You only use the class code once to enroll. You don't need to re-use the class code.
If you deleted, lost, or forgot the class code before adding yourself to a class, ask your teacher to resend the code or set a new one.
Note: You only use the class code once to join the class. You are then enrolled in the class and you don't need to re-use the code again.
If you accidentally unenrolled from a class, ask your teacher to resend you a class code or invitation.
Only teachers can make a class. If you feel you should be able to create a class please speak to an administrator.
If you get an error message when you click Turn in, let your teacher know.
If you can’t turn in an attachment assigned to you, try these steps:
To save any work you did in the attachment, copy and paste your work into a blank document.
In the Classroom assignment, on the attachment, click Remove Make a copy.
Click the new attachment.
Paste any saved work into the new file.
Click Turn in.
If you didn't get an attachment your teacher assigned, let your teacher know.
For information about attachments assigned to you, read Turn in an assignment.