1, use your spatial imagination. Spatial imagination is people's abstract thinking ability to observe, analyze and understand the spatial form (spatial geometry) of objective things. Cultivating students' spatial imagination is one of the main tasks and difficulties in middle school mathematics teaching.

2. Improve practical ability. Practice is all human conscious actions. It is said that the combination of theory and practice can reasonably transform the world.

Sand sculpture is a sculpture made of sand. More precisely, sand sculpture is a kind of sculpture art based on sand and water. This is an impromptu, fun and non-permanent sculpture creation. Compared with other sculpture arts, sand sculpture is more like a game. The creator tamped the sand pile and created it according to his own imagination, making it into various shapes of different sizes and shapes. "The beauty of operation lies in one heart." Sand sculpture art originated in the United States more than 100 years ago. At that time, people held various sand sculpture competitions in Florida and California. Since then, sand sculpture, an art form, has entered the room and formally developed into a modern art.