Read the【Case Reflection】in this section and think about the questions:

Ms J has taught for more than ten years. After each class，she jots down how she feels about the class，her confusions，the good points and excitement she has about the process. What is her purpose in doing this? What benefit can she get from it? Is it difficult to do?

What is her purpose in doing this? What benefit can she get from it? Is it difficult to do?