You can choose the folders you see and receive notifications for in your schools profile by following the steps below:
Stop folder Notifications or Hide folders:
Find the desired folder you wish to either a. Stop receiving notifications for or b. Hide in your app AND stop receiving notifications
Swipe left on the desired folder to display the options of turning off notifications or removing the folder from your app interface (you may wish to do this for classes that are unrelated to your child)
Restore removed folders:
To restore a folder that you've removed scroll to the bottom of the app and select Show Deleted folders.
Swipe to the left and hit Restore.
See demonstration video below:
NOTE: Your School Stream app will differ in view and content to the demonstration video.