Lots of people (e.g. [0], [1], [2]) have blogged the Feynman technique, which seems to have been first documented in Gleick’s biography [3]. The various descriptions identify the following four steps:
* write down the name of a concept
* write down an explanation of the concept in plain English, identifying the bits you don’t know
* review the explanation, going back to source material if there is something that you haven’t yet explained, and repeat step 2
* simplify the language and rewrite bits where you have paraphrased the source material