Locating Segment Midpoints and Endpoints on the Coordinate Plane

This GeoGebra example demonstrates how to identify a segment’s midpoint on the coordinate plane using interactive/randomly generated points, and how to clearly display the corresponding endpoints. It focuses on key ideas from coordinate geometry: the midpoint concept, point and segment representation in the plane, and conditional annotation to support visual reasoning. Construction approach: Random is used to generate coordinates (points such as a, b, c, d and A, B, C, D), Midpoint computes the midpoint of the segment, and Textfield supports dynamic labels and user-facing text. An If condition controls when and how certain annotations appear (text1 through text7). InputBox1 and a button (button1) provide user interaction for generating/controlling the configuration, while auxiliary points like E, F, and G complete the visualization. Suitable for middle and high school students learning coordinate geometry, midpoint properties, and basic dynamic geometry exploration, as well as for classroom demos or practice with geometric construction tools.