The chloroplast model is a teaching tool used in biology education to demonstrate the structure and function of chloroplasts in plant cells. This model is made of transparent or semi transparent materials and finely reproduces the internal structure of chloroplasts. In biology teaching, chloroplast models can help students intuitively understand the process of photosynthesis, learn how chloroplasts capture light energy and convert it into chemical energy, as well as key steps such as water photolysis, carbon dioxide fixation, and oxygen release in photosynthesis. By observing the model, students can grasp the relationship between the structure and function of chloroplasts, and understand the core role of chloroplasts in plant energy conversion and organic matter synthesis.