ProcessExplanation
Process explanation is a description of an orderly process such as a math formula or a scientific technique. It often happens when someone encounters some difficulties in operating particular projects. There are two types of process explanation: directive explanation and informational explanation.Directive explanation is to directly demonstrate or tell people how to carry out a project step by step. Informational explanation means giving people a general idea about the project without presenting how to follow the instructions and finish the tasks accordingly.
Question: The professor gives his personal experience to illustrate the definition and two types of "process explanation".Explain how this example is related to the reading passage.