It is actually a collection of examples and apparently they have already worked with it, some have about half done, others are not that far away. They have to choose any examples and add them gradually. They go to the blackboard with questions, the teacher explains the selected (typical) problems aloud to everyone. The pair of girls in one bench is obviously not a problem with counting, on the other hand, in the side bench, a pair of boys are bothered with examples. After the transfer, there is a positive change, the girls help the boys.
They go to the blackboard with questions, the teacher explains the selected (typical) problems aloud to everyone.