The fetal skeleton with scaffold model is a biological teaching tool specifically designed to showcase the skeletal development during fetal development. This model is usually made of bioplastic and can clearly display the shape and structure of fetal bones, while being equipped with a dedicated bracket for easy display and observation. In biology teaching, this model can help students intuitively understand the development process of fetal bones, including bone formation, ossification, and maturation of the skeletal system. Students can learn how bones gradually develop from cartilage to mature bones and the biological mechanisms involved in this process by observing the model.