I think she is a professional teacher, she can do well by nature, so I give her a higher standards about the class.
In fact, I consider she could need to be active to supplement different situation at first, or extend thinking.
For example, today’s grammar is “emphasic”, if we finished the basic one in textbook, just show that every situation in this grammar, or make a situation discussion. Because it doesn’t like a formula or structure, it needs to take time for discussion and discovery.
