Growing and Shrinking: Geometric Scaling Practice

This GeoGebra example demonstrates the visual behavior of a shape as it grows and shrinks under geometric scaling (dilation): the figure keeps its proportions while its size changes according to a scale factor. The key math ideas include geometric transformations/similarity via scaling, linear relationships that can be expressed with linear equations or parameter connections, and the interpretation of uncertainty concepts (e.g., how confidence-interval-style thinking can accompany visual ranges when applicable). Construction-wise, the provided construction summary is empty; however, based on the learning goal, the build typically relies on creating points/lines/curves of the original figure and applying a scaling transformation to generate the transformed objects, optionally using linear equations to link the pre- and post-scaling quantities. Suitable for middle and high school learners, and useful for teaching transformations, proportional reasoning, and graphing-based verification.