For security and privacy reasons, there's no way to view classes or messages without the permission of the class owner.
For class access, you'll need to have the class owner share their class with you. To learn more about this, please visit our class sharing tutorial page.
Messaging is always private between the teacher and parent. There's no way for a collaborator to access these messages. These are also not made available to mentors. Teachers can access and print their messaging history for review, if needed. For more information on how to print a messaging history, visit our article here.