We have been a Google apps school for over eight years. Officially used Google Drive since Oct. 2013 and Gmail/Calendars for over six months. By now you should be able to navigate in this world comfortably and help your students make appropriate tool and communication workflow choices.  If you feel like you would like a little help, the new Google Educator training system is full of scenarios that are specifically designed for teachers by teachers to help gain skill and understanding about effective use. Such as:

If you wish to take a certification course please email Liz and she will help get your signed up courtesy of the IT department PD budget;)