Is learning always observable?

Is learning always observable? My answer is not.

Some children are extroverted learner, and some are introverted learner. However, it is not one hundred percent true. For example, if a child is good at math, he/she will be an extroverted learner just for the math course. Due to he/she feels comfort on doing math problem,  she/he has confident on showing everybody what he/she has learned.

The suggestion from one of our classmates is very thoughtful: ask the extrovert student do the interview for the introvert student. On one hand, extrovert student can express introvert student's ideas, and introvert student does not need to be afraid of express his/her feeling. On the other hand, both of the students learned the material, and none of them miss the chance to express their feelings.

Furthermore, when we can ask the student to answer the questions, we had better ask the volunteer to answer the question or giving student enough time to answer the question. In this way, students will not feel being forced to answer the question,  and they will have more chance to express their ideas to the instructor.

A child can be different type of learner at different time, all we need to do is teaching student according to their ability; giving them as much space as you can to grow by themselves; and be the person who they suppose to be.