I think this picture is presenting us a lesson. Teacher is standing near the board and he is laughting loud. Probably he's translating to kids some thing about the lessons in a funny way. Learners are very interested in the subject of the lesson. They are keeping their hand in the air, so they want to ask the teacher about something.
My first teacher was verry kind. He always wanted to translate us all things that we didn't understand. Also, he liked to travel with my class a lot.
Myślę, że powinno być okej ;)