| 1 | Teaching extremums of several variable functions |
| 2 | Teaching slyndirical and spherical coordinates. |
| 3 | Teaching applications of double integrals . |
| 4 | Teaching applications of trible integrals. |
| 5 | Tteaching line integrals . |
| 6 | Teaching and applying surface integrals and fundamental theorems of surface integrals . |