Relative Number Addition with a Graduated Line

This example demonstrates the visual process of adding relative numbers (positive and negative) on a graduated line. It involves core mathematical concepts such as number line, relative number operations, vector addition, and integral ideas (Riemann sum). Construction highlights include using GeoGebra commands like Vector and Segment to draw axes, vectors representing numbers, and building points, texts, etc. Suitable for middle school and above mathematics education, providing an intuitive understanding of number operations and pre-calculus concepts.