We know that constantly summarising / refining information is one of the best ways to revise.
In the Revision Diamond, you identify a topic and put the most important aspect of that topic in the top diamond and then the next 8 aspects in order down the page to the least important in the bottom diamond. This will help you to review a lesson earlier in the day, prepare for a forthcoming lesson, or revise a topic for an exam. You can also use these to refer back to on the night before an exam.
You can download a template here.