1. The students are learning solid geometry.

2. Compare and Revelation about Solid Geometry of " Curriculum Standards " and " Outline "

3. Solid geometry is much more difficult to learn than plane geometry.

4. A basic understanding of mathematics, solid geometry, and color theory may be prerequisite to beginning such a program.

5. The student initial contact solid geometry, will encounter many difficulties.

6. Learning plane geometry well is the foundation of learning solid geometry well.

7. The reserve calculation methods used in the production units at present are mainly the traditional ones based on solid geometry, namely cross-section method or geological block method.

8. The multimedia this superiority when the student studies the solid geometry manifests especially prominently.