To add your class period go to Google Classroom and click the plus sign in the top right corner of the screen. Then add the code that coordinates with the time you have Reading.
Google Classroom Codes
7:35-8:26 (First Hour): zmsihdz
8:30-9:18 (Second Hour): djzgyfl
9:22-10:10 (Third Hour): vzvk6ac
10:14-11:02 (Fourth Hour): 5cgqov7
11:06-12:36 (Fifth Hour): it5oq5i
12:40-1:28 (Sixth Hour): xuypg7m
2:24-2:51 (Eighth Hour): Tiger Time--No Google Classrom