An individual who has reached the stage of self-esteem almost always makes a sound and rational decision. He or she always sets a reachable yet chall… - Sukavich Rangsitpol

The old saying, "Teachers will teach the way they have been taught" is very much in evidence in the Thai educational system. Hence, introducing change to educational practices has to start with teachers' learning. When the learning process of teachers and teacher training has been changed, it is assured that the new learning process will be replicated in classrooms. If teacher education is loaded with lecturing, it is very difficult to introduce other kinds of teaching to school learning. If teachers' learning emphasizes memorization or rote learning, it is unlikely that school learning will include high-order thinking. Therefore, every educational reform has to begin with teachers' learning, otherwise classroom learning will not be changed and new learning outcomes will not be achieved.

To make teachers more reflective, a series of self-assessment sessions have to be conducted, beginning with an analysis of the learners, or the students. Teachers have to be trained or retrained on how to make their teaching more effective and successful.

Constructive process is a process of development and learning is a process of reconstruction of nature.