I proceeded in exactly the same way when explaining, and the students understood everything with a third example. In this class I managed all the activities I had prepared. Looking back, I don't understand how there can be such class differences. . . When I was listening to a nine-year-old science student, I kept his eyes on me. The students were like exchanged. They disturbed, they did not concentrate, they did not listen to the teacher at all.
Looking back, I don't understand how there can be such differences in classes ...