Complete the sentence, with the words and phrases as following ●●assist, superior,on the other hand, valid The teacher-directed and the child-directed approaches to teaching art represent two extremes of opinion. Too many teacher-directed activities cannot be expected to effectively 【1】 children in learning because of the rigid structure. On the other hand , too many child-directed activities may see a curriculum that is totally unstructured and out of control. There are 【2】 reasons to believe a teacher-guided approach would be a 【3】 way to guide children’s development. This approach combines some form of structure with the child leading the direction.