A biological microscope is an important instrument used in biology teaching to observe the cellular structure of small organisms or biological tissues. It magnifies the specimen through a precise lens system, allowing students to see details of cells and microorganisms that cannot be distinguished by the naked eye. In biology teaching, microscopes can help students intuitively understand the structure and function of cells, observe the cell walls of plant leaves, the nuclei of animal cells, the shapes of bacteria, and so on. By using microscopes, students can learn the basic knowledge of cytology, microbiology, and histology, and master the operating skills of microscopes, including specimen preparation, focusing, and adjusting magnification.