Remind is a safe, classroom-friendly communication website and app where teachers can send messages, en masse or targeted, to individuals or groups without disclosure of anyone's personal contact information. Messages can also be translated into over 70 languages.
The Technology Department takes care of rostering your classrooms into Remind for you each semester, however if there are any extra curricular groups or athletic teams you'd like to use the program for you'll have to manually manage those classes. Adding parents to a remind group is possible but the parent will have to electively join your class with your code/link.
You are able to use some Google classroom features with Remind but it's primary use is to message and communicate with students.