Vector Addition (Soma de vetores)

① This example demonstrates the geometric process of adding two vectors in the plane using the parallelogram or triangle rule, showing the resultant vector visually. ② The core mathematical concept is vector addition, including magnitude, direction, and the relationship between initial and terminal points, with coordinate representation and geometric interpretation. ③ Construction highlights: using GeoGebra's Point command to create points A and B, Vector command to construct vectors a and b, and generating vector u as the sum of a and b; dragging points dynamically updates the resultant vector. ④ Suitable for high school or early college students learning vector basics, and for teachers demonstrating the geometric intuition of vector addition, including commutativity and associativity.