classroom with a light-colored wall and a whiteboard

classroom with a light-colored wall and a whiteboard. On the wall, there is a framed poster with text in Bulgarian. The whiteboard has handwritten text and a drawing of a pie chart. The poster reads, "Solving a problem is a practical skill, just like swimming, skiing, or playing the piano. It can only be acquired through imitation and practice." The handwriting on the whiteboard appears to be student work, with mathematical equations and anatomical terms. One equation simplifies to 1/2, and another problem involves 1 - 1/25. The anatomical terms are written in Bulgarian and include "legs," "arms," and "body." A pie chart is drawn on the whiteboard, divided into eight segments. The classroom appears to be in a school in Svishtov, Bulgaria, given the context of Bulgarian text and the general appearance of a typical classroom environment. There are no individuals visible in the image.