Steve Gillman, in an article on Buzzle.com (Intelligent Life on the Web), writes how current methods of learning maybe aren't the most effective ways to learn. The first method to improving learning is by teaching. Gillman writes that by teaching others, we grasp a better understanding of something ourselves.
Helps improve your learning of a topic
It may be tough to find people willing to listen/learn
It takes time to learn about a topic, and then teach it to others
Gillman then discusses how "vividly imagining" yourself teaching can improve your learning even more. By first teaching a friend about a topic you are trying to learn, you can gain a better understanding of the topic. If you then vividly imagine yourself teaching the topic you are learning about, you will become better at learning the topic.
Your vivid teaching lessons go faster than real ones and have less interruptions.