Every Tuesday Google for Education releases tips on three of their apps, Google Expeditions, Google Forms, and Google Classroom. All of these tips are very helpful and are submitted by everyday users.
Click on the links to access the information. The tips are cumulative, so you can go back and reference tips from weeks ago.
Google Classroom https://goo.gl/WcJdpp Google Forms https://goo.gl/f36Hjz Google Expeditions https://goo.gl/sWtqWC