You need to be logged in to access this page. Login to Desmos in the same way you would login to CPM. If you need to create a Desmos account, create the account with the same email as you use for CPM. Once you visit teacher.desmos.com/cpm and follow the steps there then you should be able to see any of the links from the cpm eBook as long as you are logged in on desmos with the account you have verified on teacher.desmos.com/cpm.
