1. Enable students to intuitively understand solid figures such as cuboids, cubes, cylinders and spheres and plane figures such as rectangles, squares, triangles and circles, and to identify and distinguish these figures.

2. Draw various figures by posing, so that students can intuitively feel various figures and features.

3. Cultivate students' preliminary observation ability, hands-on operation ability and the ability to communicate and use mathematics.

4. Let students feel the connection between mathematics and real life.

5. Stimulate students' interest in learning in a pleasant atmosphere, cultivate students' awareness of cooperation, exploration and innovation, and initially establish the concept of space.