Mostly, however, about solved examples. I am pleasantly surprised that the students take the help of each other as an automatic procedure, they give advice and explain. The teacher tolerates a certain level of noise, but twice during the lesson she asked the students to calm down. In one example, students found "nothing to complain about." In this case, the teacher explained to them that they should write "has no solution".
The teacher tolerates a certain level of noise, but twice during the lesson she asked the students to calm down.