Period 1 - https://classroom.google.com/c/Mzg1MTQwOTU2Njgw
Period 3 - https://classroom.google.com/c/Mzg1MTQxMDE4MzY4
Period 5 - https://classroom.google.com/c/Mzg1MTQxMDE4NDE5
Period 7 - https://classroom.google.com/c/Mzg1MTQxMDE4NTA1