Geometric shape model is a set of visual teaching aids that covers both flat and three-dimensional surfaces, including magnetic triangles, quadrilaterals, cubes, prisms, pyramids, spheres, etc. It has uniform side lengths, color correspondence, and can be pieced and split. Students can intuitively understand the relationships between edges, angles, surfaces, volumes, symmetry, cross-sections, and volumes through assembly, rotation, and unfolding, and support measurement, projection, and coordinate expansion. Teachers can demonstrate with hanging boards, and students can operate in groups to achieve a three-dimensional geometry exploration from "seeing" to "doing" to "speaking", suitable for teaching graphic and spatial concepts from primary school to junior high school.