This picture was taken in a high school classroom during a group report. It seems that the students are presenting the results of a survey, maybe for our school's annual science fair. A girl is pointing at a colorful bar chart on the screen. I'd guess the bars show the quantity of plastic bottles each class recycled this year. Two other group members are standing next to her with their notes, so they must be next. I think using charts is much better than using only words. A chart puts the emphasis on the most important numbers, and people can compare them at a glance. Long sentences full of numbers are hard to follow. Let me describe the picture in more detail. Apart from the presenters, about ten students are sitting at their desks. Some are taking notes, and a boy with glasses is raising his hand to ask a question. Behind them, the teacher is giving scores with a cup of coffee on her desk. They look like a hardworking group.