The teacher is nice. He has a good sense of humor and always has a smile on his face. However, my English isn't very good, so I didn't understand everything he said to me. Maybe he should speak louder and more slowly so that I could understand better. Another problem is that the pictures used in the lessons almost never match the content being taught. I think this is part of the Callan Method policy. The teacher doesn't show the content of the textbook, so we have to buy it. This is a big problem because it means we don't always know what the teacher is talking about, and sometimes the teacher can't find the right picture to show or teach us, which makes the lesson process a bit confusing and wastes time.