This math topic centers on calculating the volume of spheres. It includes practice on using the standard geometric formula for the volume of a sphere, \(V = \frac{4}{3} \pi r^3\), where \(r\) is the radius. Students solve problems by applying this formula to spheres with various radii, testing their ability to plug in the appropriate values and compute the results correctly. The topic fits into a broader unit on the volume and surface area of complex 3D shapes at an advanced level. This includes differentiating between correct and incorrect formulations of the volume formula.