Exploring Sphere Volume with GeoGebra: From Radius to (4/3)πr³

This example demonstrates how to visualize and compute the volume of a sphere in GeoGebra by using a dynamic geometric construction where the volume depends on the radius parameter. It highlights the sphere volume formula V = (4/3)πr³, the role of π, and parameter-driven computation (including the cubic power term that scales the volume). Construction-wise, the model uses 3D solid tools such as Sphere and other solids like Cylinder and Cone to build spatial relationships, while Point, Segment, Line, Circle, and Intersect help define key geometric elements and determine intersections. Text objects (e.g., text1/text2/text3) are used to display the final expression “Volume of the Sphere = (4/3)i³π units³” directly on the figure, enabling students to see how the numeric result updates. Suitable for secondary school through early university solid geometry, interactive formula learning, and classroom demonstrations.