A man in a gray shirt is teaching a classroom of students chemistry

A man in a gray shirt is teaching a classroom of students chemistry. He is standing in front of a white board with chemical formulas and the word "ENAMINES" written on it. The students are sitting in rows of chairs facing the board. Many students have dark hair. The instructor draws a diagram on the white board, explaining a chemical reaction to the class. The room appears to be brightly lit, but the image is somewhat overexposed. There is a sign at the top left of the white board that reads "Pls Avoid the use of markers on the white board." There is a second board to the right covered in papers and posters.