First, create an account here.
To register a Student Account, follow the instructions on the account creation page and answer the appropriate registration question for your volume.
To register a Teacher Account, enter the Teacher Access Code that can be found in the file AIJ1_Accessing_Companion_Website.pdf on the Teacher’s Guide to Go. Once you have registered your account, you will gain access to all of the teacher resources as well as the student resources under the Teacher Resources tab.