Powers of self-expression

     Today I read a book about powers of self-expression. The book say that you need to give students essay exams not multiple choice exams if you want them to develop their powers of self-expression. And it also says that students from elementary to high school were given oral tests everyday. For example, the teacher select students at random and made them stand in front of the blackboard and explain something. At first, everyone isn't good at doing it, but they learn to do it gradually.