Selection of teaching literature, as well as activities selected learning materials which are necessary for teachers to be understanding to help make their teaching more effective.
Selection Activities for teaching. As well as a learning medium. Which is essential for teachers to study to help understand their own teaching more effective.
Selection of supporting teaching activities Learning materials, as well as select Which is necessary for the teachers to study and understand to help the teaching of ตนเองมีประสิทธิภาพ)