Exploring Addition of Complex Numbers: Geometric Visualization

① This GeoGebra example dynamically demonstrates the addition of complex numbers by representing them as points or vectors in the plane, showing how the sum corresponds to the resultant of vector addition. ② The core mathematical concept is the geometric representation of complex numbers and the rule of addition: add real parts and imaginary parts separately, equivalent to the parallelogram or triangle law of vectors. ③ Construction highlights: from the summary, objects A, B, and C are created, where A and B represent two complex numbers (as points or vectors), and C is their sum; dragging A or B updates C, revealing the geometric translation and composition. ④ Suitable for high school or early college students learning complex numbers, ideal for classroom demonstration or self-exploration to bridge algebraic operations with planar geometry.