The image shows a wooden structure on a green table in a classroom. The structure appears to be made up of multiple wooden blocks stacked on top of each other. The blocks are of different sizes and colors, with some being red, blue, green, and yellow. There are also some pieces of wood scattered around the table. In the background, there are other tables and chairs, and a person can be seen working on the structure. The floor is made of concrete, and there are bookshelves visible in the background.