called flipped teaching, which was developed by Jonathan Bergmann. He asked his students to watch video lectures at home and do exercises (homework) in class under supervision (监督). He found that grades went up and he also found time for other types of activities, which Bergmann states are more important than the videos.

　　Back to my art class, the students were learning to get ideas, make predictions, and explain reasoning to their classmates. Together they compared, asked questions and made discoveries as they presented the technique.

　　1. Which of the following is one of the benefits of flipped teaching?

　　A. Teachers needn't check students' homework.

　　B. Students can control their own learning pace.

　　C. Students can choose whatever they want to learn.

　　D. Teachers can develop their own teaching methods.

　　2. Who plays a central role in the flipped teaching?

　　A. The artist. B. The parent.

　　C. The teacher. D. The student.

　　3. What is the best title for the text?

　　A. The flipped teaching I used in art class

　　B. Jonathan Bergmann's flipped teaching

　　C. A teaching method spreading the nation

D. A new painting technique called glue batik