Throughout the year you will find that more and more resources are posted onto Google Classroom.
When you come to revise a topic it is best to the filter button to let you only see what you need to.
Open Google Classroom
Tap on the Classwork TAB
Click the inverted triangle (top right) and choose a topic
You will now only see items that are posted on that topic.
Click the < button (top left) to go back to all topics