Click to install the Skill, then say "Alexa, open Secondary Storage Cards"
Revise With Google Assistant
No need to install, just say "Ok Google, talk to Secondary Storage"
Download Doodle Notes
The Common Types of Storage Doodle Notes provide a structured way for you to revise topic areas in a visual way. You don’t have to be an artist as it’s all been drawn out for you (or you can use this as inspiration to create your own!). Print the notes, then colour in areas of importance, add doodles and colour, then add more detail to the notes page being as creative as possible.
There are known benefits to using Doodle Notes (whether structured like these, or independently created):