| Collection 1 | Practices for division, multiplication, and arithmetic of complex numbers. |
| Collection 2 | Interactive introduction to Complex Numbers. |
| Collection 3 | Summary of manipulating Complex Numbers |
| Collection 4 | Understanding properties of Complex Numbers. |
| Collection 5 | More information on Complex Numbers |
| Applet 1 | Basic arithmetic of Complex Numbers. |
| Applet 2 | Calculations with Complex Numbers. |
| Applet 3 | Basic conjugations and properties of Complex Numbers. |
| Applet 4 | Properties of the Complex Plane |
| Applet 5 | More information on the basic properties of Complex Numbers. |