If you cannot see the comments left by the teacher, don't worry - everything is working properly!
Comments left by the teacher do not show up on student accounts, they only show up on parent accounts.
If you're a parent, you can create an account by visiting the Parent Account website at https://home.classdojo.com/ and enter your unique Parent Code. Parent Codes must be obtained from your student's teacher.
Comments will be visible on your student's Report under the day they were written.