通过建构“植物细胞有丝分裂”的物理模型,以制作实物、图示等间接材料过程中所获得的具体经验为支柱,将分裂过程抽象化,深化教学内涵。 By constructing a “physical cell mitosis” physical model and using the specific experience obtained in the process of making indirect materials such as physical objects and diagrams as the pillars, the process of splitting is abstracted and the connotation of teaching is deepened.